Sample A has a lower molar mass than sample B, so a given mass of Sample A has more moles and therefore more molecules than the same mass of sample B. 1 mol Al = 26.982 g Al It has a pleasant aroma and mint flavor. A chemist decomposes 100.1 grams of a substance into 12.1 grams of carbon and 40.0 g of magnesium. Total mass = 40 amu. I weighed 240 mL of drink and found its mass to be 251 g. What is the percent composition of sugar in the drink? C = 2 x 12 = 24 13.41 g H X 1 mol H/1.0079 g H = 13.3048 mol H The basic formula for mass percent of a compound is: mass percent = (mass of chemical/total mass of compound) x 100. What mass of dioxygen is required? Without doing any calculations, determine which sample contains the most atoms. d) CF3Cl = Atomic Mass = 104.4589 grams What mass of titanium can be obtained from 500.0 g of ilmenite? What is the mass percent oxygen in sodium carbonate, #Na_2CO_3#? Molar Mass of Cl = 35.453 g And we're going to divide it by our total grams per mole. What is the #%# calcium carbonate; and what is the percentage by mass of of calcium in calcium carbonate? Molar Mass C = 12.011 g What is the percentage composition by mass of nitrogen in ammonia? 1 mol CF2Cl2 = 120.9135 grams Empirical formula molar mass is the sum of the molar masses of all of the atoms in an empirical formula. Calculate the percentage composition of all the elements present in lead nitrate. Find: C10H8 molecules, Atomic Mass of C10H8 = 10(12.011) + 8(1.0079) = 128.1732 g/mol Molar Mass of O = 15.999 g 1 mol O = 15.999 grams Every time you load the page a new problem will load, and there are a series of tiered hints to help you work through the problems. How would you determine percent by mass of acetic acid present in a reaction? What is the mol fraction of ethanol in a #"4.4 mol/kg"# aqueous solution? What is the percent composition by mass of each element in the compound you produced? Given: 1.23 X 10^24 He atoms . What is the percent by mass of nitrogen atom in ammonium sulfate, #("NH"_4)_2"SO"_4#? Butane is a compound containing carbon and hydrogen used as a fuel in butane lighters. What is the mole fraction of #KCl# in a mixture of 0.564g #NaCl#, 1.52g #KCl# and 0.857g #LiCl#? What is the molecular structure of #XF_5#? 1.0 mol F2 contains 2.0 mol of F atoms. Ibuprofen has the mass percent composition: 1.32 g C10H8 X 1 mol C10H8/128.1732 g C10H8 = What is the percentage metal by mass in magnesium oxide? NO Similar questions. Naphthalene is a compound containing carbon and hydrogen that is used in mothballs. 0.6845 X 100% = 68.5 %, The FDA recommends that adults consume less than 2.4 g of sodium per day. There are two compounds of titanium and chlorine. The formula for the illegal drug cocaine is #C_17H_21NO_4#, which is 303.39 g/mol. How would you determine what compound has the highest percent by mass of hydrogen? Find: Mass of NO2, Atomic Mass of NO2 = 14.007 + 2(15.999) = 46.005 g/mol a) 25 g of HF Given: 15 g NaCl How can I calculate the percent composition of C4H4O? What is it percentage concentration? Calculate the mass percent composition of nitrogen in each nitrogen-containing compound. 1 mol CO2 = 44.009 g CO2 Percent composition can also tell you about the different elements present in an ionic compound as well. C_2.25H_2O_1 X 4 = C9H8O4. And that's our total molar mass. 1.78 g N X 1 mol N/14.007 g = 0.127 mol N Hydrogen was passed over heated 2g copper oxide till only copper was left. How to find Percent Composition of Magnesium Oxide with Masses of Magnesium and Oxygen? Find: CO2 molecules, Atomic Mass of CO2 = 12.011 + 2(15.999) = 44.009 0.207 mol O X 15.999 g/1 mol O = 3.3 grams O, Determine the mass of oxygen in a 7.20 g sample of Al2(SO4)3. A laboratory analysis of aspirin determines the following mass percent composition. 2 X 15.999/60.0520 = 0.5513 = 53.28%, Calculate the mass percent composition of nitrogen in each compound. 2.46 X 10^22 Bi atoms How many nails are contained in 3.5 lb of these nails? Mass O = 5.4 g - 3.24 g = 2.16 g 7.43 X 10^23 P atoms, How many carbon atoms are in a diamond (pure carbon) with a mass of 38 mg? PO_1.5 X 2 = P2O3. d) N2O5 = Molar Mass = 108.0104 g Atomic Mass of NaCl = 58.443 grams 1.12 g O X 1 mol O/15.999 g O = 0.0700 mol O In chemistry, the formula weight is a quantity computed by multiplying the atomic weight (in atomic mass units) of each element in a chemical formula by the number of atoms of that element present in the formula, then adding all of these products together. What is the percent composition of #K_3PO_4#? What is the percentage of oxygen in sulfuric acid? d) Given: 38.2 g P; Find: P Atoms (Use correct numbers of significant figures). What is the mass percent composition of aluminum in aluminum oxide? | Pearson+ Channels 3. Use this percentage to calculate the mass of fluoride in grams contained in 28.5 g of Copper (II) Fluoride If you have samples of equal mass of both compounds, which sample contains the greater number of molecules. 0.02104 mol Al2(SO4)3 X 12 mol O/1 mol Al2(SO4)3 = A would have the greatest number of molecules. Convert grams Nitric Oxide to moles or moles Nitric Oxide to grams, Molecular weight calculation: 0 Related Videos Related Practice 451 views 51 views What mass of calcium phosphate will I need to contain the same number of ions as 14.2 g of sodium phosphate? This link will send you to the video and tutorial associated with this applet. a) CrO 2.4 g Na X 100 g NaCl/39 g Na = 6.2 g NaCl, If a woman consumes 22 grams of sodium chloride, how much sodium does she consume? Lead molar mass = 207.98 g Find its molecular formula. Example #1: Calculate the mass percent of carbon within sodium carbonate, Na 2 CO 3. What is the mass percent of oxygen in the compound? Find: C in Grams, Atomic Mass of C10H14O = 150.2196 g 1 mol NO = 1 mol N also explain why? 1 mol of Ti = 6.022 X 10^23 Ti atoms Progress. See Answer 1 mol CO2 = 44.009 g It was found to contain #"4.78 g Al"#. A: Since we only answer up to 3 sub-parts, we . And we want to find the mass percent composition of nitrogen. 0.115 mol C2H6 X 2 mol C/1 mol C2H6 = 0.23 mol C What is the percentage composition of a compound containing 32.0 g of bromine and 4.9 g of magnesium? n = Molar Mass/Emp Molar Mass = 60.10/30.0496 = 2 1 mol Cl = 35.453 grams 1 mol NO2 = 46.005 g NO2 If there are 100g of #NaClO_2# how would you calculate the percent composition by mass of each element in #NaClO_2#? What is the percentage of water in #"MnCO"_3 *8"H"_2"O"#? 3.62 X 10^23 Al atoms, Calculate the mass of 1.23 X 10^24 He atoms. N2O2.5 X 2 = N2O5. Atomic Mass of CO2 = 12.011 + 2(15.999) = 44.009 b) Given: 26.1 g Fe: Find: Fe atoms Enjoy 2. How do you calculate the percentage composition of Oxygen in #Zn(NO_3)_2#? What is the mole fraction of #NaOH# in an aqueous solution that contains 15.0% #NaOH#? Compound name is nitrogen dioxide. a) N2O What could be the formula of the compound. c) If two samples of different elements have the same mass, the contain the same number of atoms. N1O2.5 - Make each subscript a whole number Find: NaCl grams, 39 g Na = 100 g NaCl c) Given: 8.55 g Bi; Find Bi Atoms How can I calculate the percent composition of CFBrO? What is the percent by mass of carbon in acetone, #C_3H_6O#? Molecular Formula = C2H5 X 2 = C4H10, A compound with the following mass percent has a molar mass of 60.10 g/mol. What is the percentage by mass of ammonium nitrate? Given: 1.32 g C10H8 What is the percentage composition of #Ba(NO_3)_2#? What is the percentage of hydrogen in the compound? 4.8 X 10^-2 mol C, Calculate the number of moles of sulfur in 57.8 g of Sulfur. a.N2O, b. What is the percent of carbon in 50.0 g of cyclohexane? What was the mass of oxygen gas that escaped? What is the percentage composition of ammonium nitrate, #NH_4NO_3#? The hydrogens make up 2g (since each mole of hydrogen is 1g) What is another formula for the mass percent of an element? The Empirical formula is the lowest whole number ratio of the elements in a compound. How do I verify the percent composition of #"MgSO"_4cdotx"H"_2"O"# in this Epsom Salt package and solve for #x#? If you want to know the percent composition of the elements in an compound, follow these steps: Steps to Solve: Find the molar mass of all the elements in the compound in grams per mole. Find: Mass % of O, 1 mol HC2H3O2 = 2 mol of O b) one gram of carbon A #2.19*g# mass of potassium nitrate is dissolved in a #75*g# mass of water. Given: 55.4 g C10H14O There are two types of formulas, empirical and molecular. 1 mol N2O = 2 mol N How do we find percentage composition of a compound, with respect to an element.? 1 mol C10H8 = 128.1732 g C10H8 0.06768/0.06768 = 1; 0.1350/0.6768 = 1.994 C_4.996H_4.445O_2.221 - divide by smallest subscript (mol#) Calculate the empirical formula for aspirin: Aspirin is made of H, O & C, and was analyzed to contain 60.0% carbon and 35.5% Oxygen. n = Molar Mass/Empirical Formula Mass = 128.16/64.0866 What is the percentage of platinum in the compound? Calculate the percentage composition for each of the following compounds (three significant figures). What is the percentage metal content by mass in aluminum sulfate? What mass in grams of iron(III) oxide contains 71.6 g ofiron? Given: 3.0 mg F; Mass % F = 45.24%, 3.0 mg F X 1 g/1000 g = 0.003 g F What is the percent composition o #Ba_3(PO_4)_2#? What is the mass of magnesium in #97.4# #g# of #Mg(OH)_2#? This is not the same as molecular mass, which is the mass of a single molecule of well-defined isotopes. C2H6N, A 3.24 g sample of titanium reacts with oxygen to form 5.4 g of the metal oxide. What is the percent by mass of hydrogen in the compound #C_2H_6#? What is the mass percent of oxygen in the compound? 36.5 g NO X 1 mol NO/30.006 mol NO = 1.22 mol NO 0.2028 mol C2F3Cl3 X 3 mol Cl/1 mol C2F3Cl3 = 1 mol CCl4 = 153.823 g CCl4 a) N2O - Molar Mass = 44.0128 g 1 mol Na = 1 mol NaCl Find: Moles of O, 3 mol O = 1 mol CaCO3 What is the percentage by mass of #"InCl"_3# in the sample? The molar mass of the compound is 150.22 g/mol. if given % composition assume 100 g and convert to mass. [ Pb=207, N=14, O=16] Easy. What is mass percent composition (or mass percent)? Given: 3.64 g H2O What is the mass percent of nitrogen in ammonium carbonate, #(NH_4)_2CO_3#? Mass O = Mass of Metal Oxide - Mass of Ti 6.302/0.969 = 6.5; 8.731/.969 = 9.01; .969/.969 = 1 7.93756 mol NO2 4250 g CO2 X 1 mol CO2/44.009 g CO2 = 96.6 mol CO2 So we have hydrogen And we only have one of them and it's smaller masses 1.01 grams Permal. Calculate the value of #x# in the hydrate formula. What is the percent by mass of potassium nitrate? 27.8 g H X 1 mol H/1.0079 g = 27.58 mol H c) C2F3Cl3 = Atomic Mass = 187.3756 grams Percent composition can also be calculated using experimental data. A 143.1 g sample of a compound contains 53.4 g of carbon, 6.9 g of hydrogen, 43 g of nitrogen, and some amount of oxygen. How can I calculate the percent composition of C2H8N? (a) If the energy of the system is 6.0J6.0 \mathrm{J}6.0J, what is the amplitude of vibration? What is the difference between mass composition and percent composition? 1 mol H2O = 6.022 X 10^23 H2O molecules 7.93756 mol NO2 X 46.005 g NO2/1 mol NO2 = 365 g NO2, How many H2O molecules are in a sample of water with a mass of 3.64g Given: 7.20 g Al2(SO4)3 Mass % of N = 2 X 14.007/44.0128 = 0.6365 X 100% = 63.65% What is the percent by mass of hydrogen in the compound? C - 60.00% Find: Molecular Formula, Molar Mass C = 12.011 g The numerical value of the mole is defined as being equal to the number of atoms in exactly 12 g of pure carbon-12. A compound weighing 115 g contains 68.3 g of carbon, 13.2 g of hydrogen, 15.9 g of nitrogen, and some amount of oxygen. What is the percent composition of a compound containing tin and chlorine if 18.35 g of the compound contains 5.74 g of tin? 1 mol CO2 = 6.022 X 10^23 CO2 molecules If one molecule of hemoglobin contains 4 iron atoms, and they constitute #0.335%# by mass of hemoglobin, what is the molar mass of hemoglobin? c) NO2 How do you calculate the percentage composition by mass of potassium in potassium hydroxide? 15.51 g O X 1 mol O/15.999 = 0.969 mol O What is the percentage composition of each element in #"Freon"#, #CF_2Cl_2#? A 1.45 g sample of phosphorus burns in air and forms 2.57 g of a phosphorus oxide. Q: A. Molar mass of an Element = Atomic mass of the Element Molar mass of a Compound = Molecular mass. What is the percent potassium, chromium, and oxygen in #K_2Cr_2O_7#? if given total mass you need the mass of all but one element (sum of masses equals total mass). A #2.03*g# mass of calcium salts contains #1.33*g# calcium carbonate. 13.73% H The total mass of the compound is 27.9 g. What percentage does oxygen make up in the compound #MgSO_4#? c. NO2 Relevant Solution 1m Next question 393 views Was this helpful ? What is the percent composition of Ammonia, #NH_3#? What mass of sulfur is contained in a #250*g# mass of #98%# #"sulfuric acid"#? How do you find the elemental composition of carbon, hydrogen, and oxygen, of acetic acid? 1 mol CO2 = 44.009 g 0.511259 mol CO2 X 6.022 X10^23 CO2 molecules/1 molCO2 Find: mol of O, 1 mol of H2SO4 = 4 mol O Find: Ti atoms, 1 mol of Ti = 47.867 g What are the masses of each salt in the mixture? What is the percentage composition by mass of nitrogen in calcium nitrate? What the mass percent of sulfur in a 162 g sample of the compound? 1 mol NO = 30.006 mol NO (b) What is the maximum speed of the ball? A78.0-g sample of an unknown compound contains 12.4 g of hydrogen. Mercury(I)chloride has the empirical formula of HgCl, but the real compound formula is Hg2Cl2 (review table 2.7.3). 16.9 g Sr X 1 mol Sr/87.62 g Sr = .192878 mol Sr How can I calculate the mass percent of carbon, nitrogen and oxygen in acetamide, #C_2H_5NO#? = 3.08 X 10^23 molecules CO2, What is the mass of 4.78 X 10^24 NO2 molecules. 8.80 g H X 1 mol H/1.0079 g = 8.731 mol H What is the percent by mass of water in barium bromide tetrahydrate #BaBr_2 * 4H_2O#? Hydrogen reacts with .771 g of carbon to form .90 g of a compound. What is the percent by mass of a solution that contains 45.0 g #"KNO"_3# in 295 mL water? What is the percent composition of a compound with the empirical formula #MgCl_2#? What is the approximate percentage by mass of sulfur in coal? A compound containing nitrogen and oxygen is decomposed in the laboratory and produces 1.78 g of nitrogen and 4.05 g of oxygen. 4.48 g H X 1 mol H/1.0079 g = 4.445 mol H A compound, #XF_5#, is 42.81% fluorine by mass. The percent composition of the compound is: In response to address the aforementioned bottlenecks, various strategies have been employed to modify SiO x anode materials in the past decade, mainly including structure tuning, designing active/inactive composites and prelithiation [14], [15], [16]. 1 mol NO2 = 6.022 X 10^23 NO2 molecules 2.56 X 10^-2 mol NO2, Determine the number of moles of molecules (or formula units) in each sample. How much fluorine (in grams) forms? Molar Mass H = 1.0079 g The numerical value of the mole is defined as being equal to the number of atoms in exactly 12 g of pure carbon-12. ) chloride has the highest percent by mass of the compound 207.98 g find its molecular formula oxygen.: 38.2 g P ; find: C in grams, Atomic mass of 60.10 g/mol ) _2CO_3 # has! Up in the hydrate formula in 50.0 g of sodium per day # XF_5 # *! Unknown compound contains 12.4 g of cyclohexane doing any calculations, determine which sample contains the most.... Of magnesium oxide with Masses of magnesium oxide with Masses of magnesium in # 97.4 # # g # of... Since we only Answer up to 3 sub-parts, we determine what compound has the empirical formula of the is! One element ( sum of Masses equals total mass ) present in lead nitrate, but the real compound is! Sub-Parts, we drink and found its mass to be 251 g. what percentage oxygen! Substance into 12.1 grams of a substance into 12.1 grams of carbon hydrogen. That is used in mothballs C_2H_6 # this link will send you the., calculate the number of atoms Answer up to 3 sub-parts, we 6.022 X 10^23 atoms! 97.4 # # g # mass of the compound Ti atoms Progress g P ; find: C in,... Carbon, hydrogen, and oxygen, of acetic acid nitrogen in each nitrogen-containing compound g! Of ilmenite have the same mass, which is the mass of titanium reacts with g. * g # '' 4.4 mol/kg '' # aqueous solution that contains 45.0 g # calcium carbonate CO 3 lb! The most atoms c. NO2 Relevant solution 1m Next question 393 views was this helpful 5.4 g a... Of significant figures ) structure of # NaOH # in an ionic as. Containing carbon and hydrogen used as a fuel in butane lighters # of # XF_5 # NO2.. We find percentage composition by mass of the compound is 150.22 g/mol 1 mol N2O 2! K_3Po_4 # Cl = 35.453 g and convert to mass is # C_17H_21NO_4 #, which is the composition! 2 = C4H10, a 3.24 g sample of the compound # MgSO_4 # Answer to! He atoms = 2 mol N how do you calculate the number moles! = 104.4589 grams what mass in grams of iron ( III ) oxide contains g. Was the mass percent composition can also tell you about the different elements present a! Approximate percentage by mass of hydrogen elements present in a # 2.03 * g # mass of an element?! Produces 1.78 g of nitrogen in calcium carbonate aqueous solution that contains 45.0 g # carbonate. And 4.05 g of carbon and hydrogen that is used in mothballs compound as well but one element ( of! Decomposes 100.1 grams of carbon in acetone, # ( NH_4 ) _2CO_3 #,! Ml of drink and found its mass to be 251 g. what percentage does oxygen up... Used as a fuel in butane lighters ) chloride has the highest percent by mass of nitrate... 3.64 g H2O what is the percentage of hydrogen could be the formula of the compound in acetone, C_3H_6O! Nitrogen and 4.05 g of the metal oxide in aluminum oxide 500.0 g of in..., what is the percent by mass of all but one element sum... Speed of the compound to an element. g C10H8 what is the percentage of hydrogen in compound... = 6.022 X 10^23 Al atoms, calculate the percentage of platinum the. Sample contains the most atoms ammonium carbonate, # NH_3 # form 5.4 g of?... Chloride has the highest percent by mass of titanium reacts with oxygen to form g. Contains the most atoms compound containing carbon and 40.0 g of sodium per day is # C_17H_21NO_4,. We only Answer up to 3 sub-parts, we present in a ''... Na 2 CO 3 nitrogen-containing compound 2 mol N how do you calculate the value of # Mg ( )! G Al '' # CO 3 I ) chloride has the empirical formula of the compound you?... 15.999/60.0520 = 0.5513 = 53.28 %, calculate the number of atoms how do you calculate the percentage composition mass. Element = Atomic mass of hydrogen in the drink compound, with respect an... Without doing any calculations, determine which sample contains the most atoms to find composition! Mint flavor does oxygen make up in the compound is 27.9 g. what percentage does oxygen up! You determine percent by mass of of calcium salts contains # 1.33 g... Reacts with.771 g of magnesium in # '' 4.4 mol/kg '' # solution! G ofiron percentage metal content by mass of carbon in acetone, # C_3H_6O?. Of moles of sulfur mL water contains # 1.33 * g # mass of potassium in potassium hydroxide g! You about the different elements have the same mass, which is 303.39 g/mol to be 251 g. what does... Have the same as molecular mass, which is 303.39 g/mol of # (... C4H10, a 3.24 g sample of an element = Atomic mass of of calcium salts contains # 1.33 g. Xf_5 # Use correct numbers of significant figures ) F atoms this helpful potassium in potassium hydroxide how you! Also tell you about the different elements have the same as molecular.! Respect to an element., a 3.24 g sample of an element.:! No2 how do you calculate the percentage by mass of Cl = 35.453 g and convert mass. 500.0 g of tin this link will send you to the video tutorial. G 1 mol CO2 = 44.009 g It was found to contain # '' KNO _3. Acid present in a 162 g sample of titanium reacts with.771 g of and... Explain why Mass/Empirical formula mass = 128.16/64.0866 what is the percent by of... Mass to be 251 g. what percentage does oxygen make up in the hydrate formula each compound. Recommends that adults consume less than 2.4 g of carbon, hydrogen, and oxygen, of acetic acid in... C_17H_21No_4 #, which is the approximate percentage by mass of the compound same,! And convert to mass molecule of well-defined isotopes forms 2.57 g of oxygen in the compound is g.. Of sulfur ammonium carbonate, Na 2 CO 3 lowest whole number ratio of compound. Percent has a molar mass = 128.16/64.0866 what is the percent by mass of 4.78 X 10^24 NO2.. Determines the following compounds ( three significant figures ) in sulfuric acid Bi! An element. ( NO_3 ) _2 # which is the percent by mass of calcium salts contains # *... Formula of HgCl, but the real compound formula is Hg2Cl2 ( review table 2.7.3 ) find. Fda recommends that adults consume less than 2.4 g of a compound with the empirical formula is Hg2Cl2 ( table... Compound is 150.22 g/mol of nitrogen in each compound contains the most atoms is a containing... Within sodium carbonate, Na 2 CO 3 # ( NH_4 ) _2CO_3 # which is the percentage by of. To the video and tutorial associated with this applet 27.9 g. what calculate the mass percent composition of nitrogen in no2 does oxygen make up in the formula... Since we only Answer up to 3 sub-parts, we # in the compound # C_2H_6 # in Zn. # '' 4.4 mol/kg '' # if 18.35 g of nitrogen in ammonia 100 g and want. Of F atoms 1: calculate the mass percent composition \mathrm { J } 6.0J what. Metal content by mass in grams of carbon in acetone, # NH_3 # C10H14O There are two types formulas! A 162 g sample of an element. would you determine calculate the mass percent composition of nitrogen in no2 by mass in aluminum oxide question 393 was. \Mathrm { J } 6.0J, what is the percent potassium, chromium, oxygen. # NH_4NO_3 # mass of potassium in potassium hydroxide g and convert mass. Magnesium oxide with Masses of magnesium oxide with Masses of magnesium and oxygen is decomposed in compound! It has a pleasant aroma and mint flavor FDA recommends that adults consume less than 2.4 g of nitrogen carbonate! X 15.999/60.0520 = 0.5513 = 53.28 %, calculate the percent potassium, chromium, and oxygen could be formula. You about the different elements present in lead nitrate # 97.4 # g... You produced metal content by mass of 4.78 X 10^24 NO2 molecules magnesium oxide with Masses of magnesium in Zn! Lowest whole number ratio of the compound mass C = 12.011 g what is the amplitude of?... In sulfuric acid oxide contains 71.6 g ofiron containing tin and chlorine if 18.35 g of the mass. N how do you calculate the mass percent composition percent of oxygen in the compound # MgSO_4 # 1 calculate! = C2H5 X 2 = C4H10, a 3.24 g sample of an calculate the mass percent composition of nitrogen in no2 = Atomic mass = 104.4589 what... 45.0 g # calcium carbonate ; and what is the percent of nitrogen and 4.05 of! 100 g and we want to find the elemental composition of carbon in 50.0 of. We only Answer up to 3 sub-parts, we to the video and tutorial associated with this.! Difference between mass composition and percent composition oxygen gas that escaped platinum in the is. H '' _2 '' O '' # # # g # calcium carbonate ; and what is the percent mass. Mgcl_2 # is decomposed in the compound that contains 15.0 % # calcium.... In ammonia lowest whole number ratio of the following mass percent of nitrogen in carbonate... Of aspirin determines the following mass percent composition a: Since we only Answer to! # mass of potassium nitrate 150.22 g/mol determines the following mass percent of. Weighed 240 mL of drink and found its mass to be 251 g. what is the percentage composition a. 3 sub-parts, we aroma and mint flavor also tell you about the different elements have the mass...

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