Chapter 7: Problem 21
How many atoms are in the \(1.25 \times 10^{-2}\) mol of mercury within the bulb of a thermometer?
Chapter 7: Problem 21
How many atoms are in the \(1.25 \times 10^{-2}\) mol of mercury within the bulb of a thermometer?
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Get started for freeWhat is the molar mass of the amino acid glycine, \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{NO}_{2} ?\)
How many grams are in each of the following samples? a. 1.000 mol \(\mathrm{NaCl}\) (molar mass of \(\mathrm{NaCl}=\) 58.44 \(\mathrm{g} / \mathrm{mol} )\) b. 2.000 \(\mathrm{mol} \mathrm{H}_{2} \mathrm{O}\) (molar mass of \(\mathrm{H}_{2} \mathrm{O}=\) 18.02 \(\mathrm{g} / \mathrm{mol} )\) c. 3.5 \(\mathrm{mol} \mathrm{Ca}(\mathrm{OH})_{2}\) (molar mass of \(\mathrm{Ca}(\mathrm{OH})_{2}=74.10 \mathrm{g} / \mathrm{mol} )\)
What is the mass in grams of a sample of \(\mathrm{Fe}_{2}\left(\mathrm{SO}_{4}\right)_{3}\) that contains \(3.59 \times 10^{23}\) sulfate ions, \(\mathrm{SO}_{4}^{2-}\) ? The molar mass of \(\mathrm{Fe}_{2}\left(\mathrm{SO}_{4}\right)_{3}\) is 399.91 \(\mathrm{g} / \mathrm{mol}\)
What term is used to describe the mass in grams of 1 mol of a substance?
How many moles of \(\mathrm{NaNO}_{2}\) are there in a beaker that contains 0.500 \(\mathrm{kg}\) of \(\mathrm{NaNO}_{2}\) (molar mass of \(\mathrm{NaNO}_{2}=69.00 \mathrm{g} / \mathrm{mol} ) ?\)
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