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Marysya12 [62]
2 years ago
6

How do you set up number 8

Chemistry
1 answer:
jeyben [28]2 years ago
5 0

the answer is 247 grams

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What is the empirical formula of a molecule containing 65.5% carbon, 5.5% hydrogen, and 29.0% oxygen?
rusak2 [61]

Answer:

The empirical formula is C3H3O

Explanation:

Step 1: Data given

Suppose the mass of the molecule = 100 grams

The molecule contains:

65.5 % Carbon = 65.5 grams

5.5 % Hydrogen = 5.5 grams

29.0% Oxygen = 29.0 grams

Molar mass of C = 12 g/mol

Molar mass of H = 1.01 g/mol

Molar mass of O = 16 g/mol

Step 2: Calculate moles

Moles = mass / molar mass

Moles C = 65.5 grams / 12 g/mol = 5.46 moles

Moles H = 5.5 / 1.01 g/mol = 5.45 moles

Moles O = 29.0 grams / 16 g/mol = 1.8125 moles

Step 3: Calculate mol ratio

We divide by the smallest amount of moles

C: 5.46 / 1.8125 = 3

H = 5.45 / 1.8125 = 3

O = 1.8125/1.8125 = 1

The empirical formula is C3H3O

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Ket [755]

Answer:friction

Explanation:

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Im not sure if its right but if its wrong, Im sorry

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when naoh(aq) reacts completely with hcl(aq) and resulting solution is evaporated to dryness the solid remaining is?
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Salt because the products are H20 and NaCl. H2O evaporated leaving salt or NaCl as the remainder.
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