A solution prepared by mixing 50 grams of sodium carbonate into a total solution

Question

A solution prepared by mixing 50 grams of sodium carbonate into a total solution volume of 500 ml. What is the Molarity, (w/v), and ppm of the solution? Explain the difference between a solvent, a solution, and an emulsion. Explain how breathing occurs using Boyle's law. Include and define volume and pressure in your answer. Why is temperature not usually considered for breathing problems? What are the numerical values for the pH scale of aqueous systems? What does the p in pH stand for? Which is more acidic a pH of 3 or a pH of 1? How many times more acidic? Show chemical equations for the industrial production of hydrochloric acid (hydrogen chloride). What is the difference between hydrogen chloride and hydrochloric acid. How many grams are in a 1.0 L saturated solution of HCl at 25 degree C? What Molarity is this saturated HCl solution? Metallic Lithium is a highly reactive metal. How is it prepared? It is common in a "lithium ion" battery. Explain the reactions that produce electricity in a lithium ion battery.

Explanation / Answer

(1)

Mass of sodium carbonate = 50 g.

Molar mass of sodium carbonate = 106 g/mol

Number of moles of sodium carbonate = mass / molar mass = 50 / 106 = 0.472 mol

Volume of solution = 500 mL = 0.500 L

(a)

Molarity, M = number of moles of solute / volume of solution in L

M = 0.472 / 0.500

M = 0.944 M

(b)

% (w/v) = (mass of solute / total mass of solution) * 100

% (w/v) = (50 / 500 ) * 100

% (w/v) = 10 %

(c)

ppm = (parts of solute / total parts of solution) * 106

ppm = (50 / 500) * 106

ppm = 1.00 * 105 ppm

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.