Find the molecular formula of the following compounds. 1. A chloride of silicon contains 79.1% chlorine. If its molar mass is 269 g/mol, what is its molecular formula?

Q: Without doing any detailed calculations, determine which sample contains the most fluorine atoms.…

A: Correct answer is (c) 1.0 mol of F2 . (a) Moles of F = 25/20 = 1.25 mol (b) Moles of F = 1.50 mol…

Q: 95: A 1.45-g sample of phosphorous burns in air and forms 2.57 g of a phosphorous oxide. Calculate…

A: When phosphorus burns in the air, it absorbs oxygen gas which results in the formation of oxide. The…

Q: 3.120 A mixture of NaBr and Na2SO4 contains 29.96 percentNa by mass. Calculate the percent by mass…

A: Solution- Molar masses of alll which we required-Na-23.00 g/molBr- 32.07 g/molS- 16.00…

Q: Determine the molecular formula of a compound that contains 26.7% P, 12.1% N, and 61.2% Cl, and has…

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Q: 121: Nicotine, a stimulant found in tobacco, has the mass percent composition: C 74.03%, H 8.70%, N…

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Q: 119: Butanedione, a compound in butter and body odor, has a cheesy smell. Elemental analysis of…

A: Q. 119. Conversion of mass % to grams. Suppose 100 g be the total mass of the compound. In 100 g of…

Q: PART A.1: calculate the Empirical formula for a compound. 1. A cocapound contists of 20-3g of…

A: Part A : 1) Converting the weight (in grams) to moles Moles of carbon = 20.3/12 = 1.697 Moles of…

Q: The analysis of a compound gives the following percent composition by mass: C: 61.85 percent; H:…

A: The percentage composition of the compound is given to be: 61.85% C 10.67% H 9.175% S 18.31% O

Q: 6.50 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

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Q: A compound contains 24.3% C, 4.1% H, and 71.6% Cl by mass, and has a molar mass of 99 g/mol. What is…

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Q: 91: The rotten smell of a decaying animal carcass is partially due to a nitrogen-containing compound…

A: Assuming that the sample present is 100g,After changing the percentage of the compounds into gram we…

Q: Determine the empirical formula for an artificial sweetener given the following information: A 25.0…

A: A numerical problem based on empirical formula, which is to be accomplished.

Q: Caffeine, a stimulant found in coffee, contains 49.5%% CC, 5.15%% HH, 28.9%% NN, and 16.5%% OO by…

A: Mass percentage of constituent elements of caffeine in the molal mass of 195 g/mol are: 49.5% by…

Q: how many moles of propylene (C3H6) are in 25 g of the substance?

A: Number of moles of a substance is equal to the mass of substance divided by its molar mass. Write…

Q: An unknown compound is found to contain 40.0% carbon, 6.7% hydrogen, and 53.3% oxygen with a…

A: First act as if each percentage is mass, then divide by the element's molar mass.

Q: Batrachotoxib in C 31 h42 n2 o6 in active component of South American arrow poison is so toxic that…

A: Given data : Mass of Batrachotoxin(C31H42N2O6) = 0.05 mg = 0.5 x 10-4 g Molar mass of Batrachotoxin…

Q: Hydrogen

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Q: A compound composed of 3.3% H, 19.3% C, and 77.4% O3.3% H, 19.3% C, and 77.4% O has a molar mass of…

A: The following percentages are given: H => 3.3% C=> 19.3%  O=>77.4%  The molar mass of the…

Q: A compound of C,H,N and O has the following percent composition by mass: 17.8% C, 2.22% H, and 20.7%…

A: Empirical formula represents the simplest whole number ratio of elements that are present in a…

Q: A compound is made by carbon, hydrogena and nitrogen and 1 g of this compound contains 91.5 mg of…

A: To write the molecular formula of the compound, the number of moles of each element should be…

Q: Compound X has a molar mass of 104.01 g mol and the following composition: element nitrogen fluorine…

A: Molar mass = 104.01 g/mol Molecular Formula of X = ?

Q: A compound is found to contain 30.45% nitrogen and 69.55% oxygen by weight. (Enter the elements in…

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Q: oxide in addition to gaseous carbon dioxide. What was die weight of 6g sample of impure calcium…

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Q: The molecular formula for paracetamol is C3H,NO2. How many moles of C atoms are present in a 10.0 g…

A: Molecular formula of paracetamol is C8H9NO2 Molecular weight of paracetamol is  =  8 carbon atom = 8…

Q: Determine the empirical formula of a compound that is 31.63% 09 31.56 % Ti and 36.81% Fe by mass Fe…

A: Given;

Q: 26. 78) 6.347 x 10°atoms of nickel(III) sulfide has a mass of

A: Given, number of atoms of nickel(III) sulfide =6.347×1026 atomswe are asked to calculate the mass of…

Q: Analysis of a carbohydrate showed that it consisted of 40.0 % C, 6.71 % H, and 53.3 % O by mass. Its…

A: The objective of this question is to determine the molecular formula of a carbohydrate based on its…

Q: A toothpaste contains 0.240% by mass sodium fluoride used to prevent dental caries and 5.0% by mass…

A: A toothpaste contains 0.240% by mass sodium fluoride used to prevent dental caries and 5.0% by mass…

Q: In a certain unknown compound composed only of C and H. It is 89.94% C and 10.06% H and the molar…

A: Mass percent of carbon and hydrogen is given as 89.94 % and 10.06% respectively. Mass percent of an…

Q: The molecular formula for paracetamol is C3H9NO2. How many moles of C atoms are present in a 10.0 g…

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Q: 4. Sorbitol, used as a sweetener is some "sugar free" foods, has a molecular mass of 182 g/mole and…

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Q: The compounds listed are found in many natural flavors and scents. Calculate the empirical formula…

A: The empirical formula for each of the following compounds can be calculated as :

Q: How many moles of aspirin are in the tablet?

A: Number of moles = mass/molar mass  1 mol = 6.022 × 1023 molecules

Q: The analysis of a compound shows it contains 5.4 mol C, 7.2 mol H, and 1.8 mol N. What is the…

A: Step 1) Empirical formula: The empirical formula of a compound is defined as the ratio of the simple…

Q: Aspirin, C9H8O4, is a common pain reliever and is also often given in low doses daily for prevention…

A: Given :- number of moles of aspirin (C9H8O4) in sample = 0.0745 mol  To calculate :- mass of aspirin…

Q: A 5.000 g sample that contained NaCl and BaCl2 2H2O was heated. After heating the sample had a…

A: We have to calculate the % NaCl in the sample.

Q: 10. This question is about compounds used in fertilisers. la) A compound used as a fertiliser has…

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Q: A compound has a molar mass of 147.087 g/mol and consists of 28.5680% N, 6.1674% H, and 65.2646% O.…

A: Assuming we have 1 moles of compound Hence mass of compound = 147.087  = moles X molar mass Hence…

Q: A compound containing carbon and hydrogen has a molar mass of 56.11 g/mol and an emperical formula…

A: