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Chapter 4: Problem 63

The average adult human male has a total blood volume of 5.0 L. If the concentration of sodium ion in this average individual is \(0.135 \mathrm{M},\) what is the mass of sodium ion circulating in the blood?

Short Answer

Expert verified
The mass of sodium ions circulating in the blood of an average adult human male is \(15.47\,g\).

Step by step solution

01

Find the number of moles of sodium ion

Using the given concentration (\(0.135 M\)) and volume of blood (\(5.0 L\)), we can find the number of moles of sodium ions in the blood: Number of moles = Concentration × Volume
02

Calculate the number of moles of sodium ion

Now, let's calculate the number of moles using given values: Number of moles = \(0.135 M × 5.0 L\) Number of moles = \(0.675\, mol\, Na^+\)
03

Find the molar mass of sodium

Sodium (Na) has a molar mass of \(22.99\,g/mol\). This information is typically found on a periodic table.
04

Calculate the mass of sodium ions

To find the mass of sodium ions, we need to multiply the number of moles of sodium ions by the molar mass of sodium: Mass of sodium ions = Number of moles × Molar mass Mass of sodium ions = \((0.675\, mol\, Na^+) × (22.99\,g/mol)\) Mass of sodium ions = \(15.47\,g\) So, the mass of sodium ions circulating in the blood of an average adult human male is \(15.47\,g\).

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Most popular questions from this chapter

Antacids are often used to relieve pain and promote healing in the treatment of mild ulcers. Write balanced net ionic equations for the reactions between the aqueous HCl in the stomach and each of the following substances used in various antacids: (a) \(\mathrm{Al}(\mathrm{OH})_{3}(\mathrm{s}),\) (b) \(\mathrm{Mg}(\mathrm{OH})_{2}(\mathrm{s})\), \((\mathbf{c}) \mathrm{MgCO}_{3}(s)\), \((\mathbf{d}) \mathrm{NaAl}\left(\mathrm{CO}_{3}\right)(\mathrm{OH})_{2}(s),\) (e) \(\mathrm{CaCO}_{3}(\mathrm{s}).\)

(a) Calculate the molarity of a solution that contains 0.175 mol \(Z \mathrm{nCl}_{2}\) in exactly 150 \(\mathrm{mL}\) of solution. (b) How many moles of protons are present in 35.0 \(\mathrm{mL}\) of a 4.50 \(\mathrm{M}\) solution of nitric acid? (c) How many milliliters of a 6.00\(M\) NaOH solution are needed to provide 0.350 mol of \(\mathrm{NaOH}\) ?

Label each of the following substances as an acid, base, salt, or none of the above. Indicate whether the substance exists in aqueous solution entirely in molecular form, entirely as ions, or as a mixture of molecules and ions. (a) HF, (b) acetonitrile,\(\mathrm{CH}_{3} \mathrm{CN},(\mathbf{c}) \mathrm{NaClO}_{4},(\mathbf{d}) \mathrm{Ba}(\mathrm{OH})_{2} .\)

An aqueous solution of an unknown solute is tested with litmus paper and found to be acidic. The solution is weakly conducting compared with a solution of NaCl of the same concentration. Which of the following substances could the unknown be: KOH, \(\mathrm{NH}_{3}, \mathrm{HNO}_{3}, \mathrm{KClO}_{2}, \mathrm{H}_{3} \mathrm{PO}_{3}, \mathrm{CH}_{3} \mathrm{COCH}_{3}(\) acetone)?

As \(\mathrm{K}_{2} \mathrm{O}\) dissolves in water, the oxide ion reacts with water molecules to form hydroxide ions. (a) Write the molecular and net ionic equations for this reaction. (b) Based on the definitions of acid and base, what ion is the base in this reaction? (c) What is the acid in the reaction? (d) What is the spectator ion in the reaction?
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