it ask what is the percent composition of BaCl2 (dot) 2H2O in the sample?
-mass of sample of BaCl2 was 3.3404
-molar mass of BaCl2 (dot) 2H2O is 244.2 amu
-.00953 mol of BaCl2 (dot) 2H2O were present in the sample
what other info you guys need? or is that good?
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