Question

If the molecular mass of gold is 197 grams, how many grams are in 0.5 moles

Answer 1

`\huge{ \boxed{98.5 \:g }}`

Step-by-step explanation:

The mass can be found by using the formula:

m = M × n

where:

m is the mass in grams

M is the molar mass in g/mol

n is the number of moles

From the question:

M = 197 g/mol

n = 0.5 moles

`\therefore \: m = 197 * 0.5 \\ = 98.5 \: g`