Question

Calculate the number of moles of BaF2 in a 10.0 g sample of BaF2.

Answer 1

0.06moles

Step-by-step explanation:

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Answer 2

The number of moles = 0.06 moles

Step-by-step explanation:

i) Formula

Number of moles = Mass of the sample ÷ Molar masses of the substances

ii) Number of moles = 10.0 ÷ (137)+(19×2)

= 10.0 ÷ 175

= 0.06 moles