This is the question:(adsbygoogle = window.adsbygoogle || []).push({});

How many phosphorus atoms are contained in 8.75 moles of H2P2O7? Put your answer in E-format with 1 number before and 2 numbers after the decimal place. e.g., 6.02 x 1023 would be input as 6.02E23.

the answer is : 1.05E25 (1.05 × 1025)

I really have no idea where to start. Please someone help me

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Stoichiometry help

**Physics Forums | Science Articles, Homework Help, Discussion**