Question

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2. How many molecules of H2SO4 are there in a 49g sample?
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Answer 1

Answer:

49g have 0.5 mole of molecules.

Answer 2

ANSWER

0.5 mol of H2SO4 contains 0.5 x 6.022 x 10^23 molecules. = 3.011 x 10^23 molecules . that is 49 g of H2SO4 contains 3.011 x 10^23 molecules of H2SO4.