1-Calculate the mass in grams of 2.55 moles of KCl 2- Calculate how many moles are...

Question

Question

1-Calculate the mass in grams of 2.55 moles of KCl

2- Calculate how many moles are in 2.00x10²⁰ molecules of CO₂

3- How many atoms of H are there in 1.00x10¹⁹ molecules of NH₃

science chemistry

Answer 1

Answer #1

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Answer 2

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