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QUESTION
2 questions of Chem about mol
What is the stoichiometric (molar) ratio of Br-ions to CaBr2?
Answer
1:3
4:2
1:2
2:1
How many moles of H2O are there in 7.15 grams of H2O? For H2O, use the FW = 18.015 g/mol.
0.397
0.5071
0.397 x 1023
0.5071.153