Answer to Question #115650 in General Chemistry for Dinora

Question #115650

What weight of strontium nitrate would you need to prepare 250 mLs of a 0.726 M solution?

Expert's answer

1.Find the amount of substance

"c=\\frac{n}{V}"

"0.726=\\frac{n}{0,25}"

n=0.1815

2.Find the mass

"m=M\\times n=0.1815*211,628=38.41"

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27.05.20, 20:53

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13.05.20, 00:45

Gasohol is gasoline mixed with ethanol (C2H5OH). If 0.230 g of ethanol produces 7.24 kJ of energy when burned, what would be the Delta H for the combustion of one mole of ethanol?

Answer to Question #115650 in General Chemistry for Dinora

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