Percent Composition and Molecular Formula Answers

Identify the correct mole ratio for each substance.

Ammonium nitrate (NHNO)H:O = 4:

Identify the correct mole ratio for each substance.

Lithium sulfide (LiS)Li:S = 2:

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Molecular formula: C6H12O6Empirical formula:

Molecular formula: H2SO4Empirical formula:

C2H6

C2H6

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Consider the hydrate iron (II) sulfate heptahydrate (FeSO4 · 7H2O) when answering the questions below. Type in the molar masses using two decimal places.

A compound contains 75% carbon and 25% hydrogen by mass. What is the empirical formula for this compound?

A compound is 42% sodium, 19% phosphorus, and 39% oxygen by mass. What is the empirical formula of this compound?

The empirical formula for a compound is CH2. Its molar mass is 140.1 g/mol. What is its molecular formula?

The empirical formula of an artificial sweetener is C14H18N2O5. The molecular mass of the sweetener is 294.34 g/mol. What is the molecular formula of the artificial sweetener?

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A sample of a compound contains 9.11 g Ni and 5.89 g F. What is the empirical formula of this compound?

If the molar mass of the compound is 96.69 g/mol, what is the molecular formula of the compound?

A sample of a hydrocarbon contains 20.75 g C and 4.25 g H. Its molar mass is 58.04 g/mol. What is its empirical formula