How do I find the moles of each one: 2-butanol: molar weight is 74.12g/mol and 7

Question

How do I find the moles of each one:
2-butanol: molar weight is 74.12g/mol and 7.4 (6.0g) was used sulfuric acid: molar weight is 98.08g/mol and 20 mL was used ammonium bromide: 97.94g/mol and 8.0g was used How do I find the moles of each one:
2-butanol: molar weight is 74.12g/mol and 7.4 (6.0g) was used sulfuric acid: molar weight is 98.08g/mol and 20 mL was used ammonium bromide: 97.94g/mol and 8.0g was used
2-butanol: molar weight is 74.12g/mol and 7.4 (6.0g) was used sulfuric acid: molar weight is 98.08g/mol and 20 mL was used ammonium bromide: 97.94g/mol and 8.0g was used

Explanation / Answer

Moles = mass of compound / Molar mass of compound

Moles of 2-butanol = ( 6 g /74.12 g/mol) = 0.08095 moles

sulphuric acid vol = 20 ml we need to vonvert to mass by formula

Mass = vol x density = 20 ml x 1.84 g/ml =36.8 g

Moles of sulphuric acid = 36.8 /98.08 = 0.3752

Moles of ammonium bromide = 8 g/97.94 g/mol = 0.0817

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