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(Solved): 2 questions Calculate the mass in grams of \( 7.18 \times 10^{18} \) molecules of diarsenic pentaoxi ...
2 questions
Calculate the mass in grams of \( 7.18 \times 10^{18} \) molecules of diarsenic pentaoxide. Enter your answer in scientific notation. \[ \times 10 \] \( \mathbf{g} \)
Be sure to answer all parts. Calculate the mass in grams of \( 78.9 \mathrm{~mol} \) of chromium(III) sulfate decahydrate. Enter your answer scientific notation. \( \times 10 \) g chromium(III) sulfate decahydrate