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Chapter 32: Problem 5

When one mole of \(\mathrm{Na}_{2} \mathrm{SO}_{4}\) is dissolved in water: a) how many moles of sodium ions are found in the solution? b) how many moles of sulfate ions are found in the solution?

Short Answer

Expert verified
a) 2 moles of Sodium ions (\(Na^{+}\)) \n b) 1 mole of Sulfate ions (\(SO_{4}^{2-}\))

Step by step solution

01

Identify the Number of Moles of Sodium Ions

In a Sodium Sulfate molecule (\(Na_{2}SO_{4}\)), there are two Sodium ions (\(Na^{+}\)). So one mole of Sodium Sulfate will produce two moles of Sodium ions. Hence, the answer is 2 moles
02

Identify the Number of Moles of Sulfate Ions

In a Sodium Sulfate molecule (\(Na_{2}SO_{4}\)), there is one Sulfate ion (\(SO_{4}^{2-}\)). So one mole of Sodium Sulfate will produce one mole of Sulfate ions. Hence, the answer is 1 mole

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Most popular questions from this chapter

\begin{aligned} &\text { Which is more concentrated with respect to sodium ions, } 0.50 \mathrm{M} \mathrm{NaCl} \text { or } 0.30 \mathrm{M}\\\ &\mathrm{Na}_{2} \mathrm{SO}_{4} ? \end{aligned}

Verify that when \(5.26 \mathrm{~g}\) of glucose, \(\mathrm{C}_{6} \mathrm{H}_{12} \mathrm{O}_{6}\), dissolves in water: a) there are \(2.92 \times 10^{-2}\) moles of glucose in the water. b) there are \(1.76 \times 10^{22}\) molecules of glucose in the water.

Which is more concentrated with respect to sodium ions, \(50.0 \mathrm{~g}\) of \(\mathrm{NaCl}\) in \(500.0\) \(\mathrm{mL}\) of solution or \(59.0 \mathrm{~g}\) of \(\mathrm{Na}_{2} \mathrm{SO}_{4}\) in \(500.0 \mathrm{~mL}\) of solution?

Verify that when \(10.0 \mathrm{~g}\) of sodium sulfate dissolves in water: a) there are \(7.04 \times 10^{-2}\) moles of sodium sulfate in the water. b) there are \(7.04 \times 10^{-2}\) moles of sulfate in the water. c) there are \(14.1 \times 10^{-2}\) moles of sodium in the water.
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