Express the following % mass/volume concentrations in g/mL units: 10% NaOH; g/mL

Question

Express the following % mass/volume concentrations in g/mL units: 10% NaOH; g/mL NaOH 5% CuSO_4: g/mL CuSO_4 1.25% BSA: g/mL BSA For each of the following % mass/volume solution, show the calculation (equation with all units) for the preparation of each solution. Then, describe how you would make the solution in an appropriate container. 40 mL of 3% CuSO_4 solution 200 mL of 8% NaCI solution 075 L of 5% dextrose (aka glucose) solution 10 mL of 1.25% NaOH solution For each of the following molar solutions, show the calculation (equation with all units) for the preparation of each solution. Then, describe how you would make the solution in an appropriate container. Of 0.5 M CuSO_4 solution (The MW of CuSO_4 is 250 g/mol)

Explanation / Answer

3.

A. 40 ml of 3% copper sulphate solution

volume desired * concentration desired = mass of solute needed

40ml * 0.03gr / ml = 1.2 grams

ie.,, 1.2 grams of coppersulphate to be added to 40ml of water.

B.

200ml of 8% NaCl solution

volume desired * concentration desired = mass of solute needed

200 * 0.08g/ml = 16gr

i.e., 16gr of NaCl is dissolved in 200ml of water.

C.

0.75lit i.e., 750ml of 5% dextrose solution

volume desired * concentration desired = mass of solute needed

750ml * 0.05 gr/ml = 37.5 gr

i.e., 37.5 gr is to be dissolved in 750 ml of the solution

D.

10 ml of 1.25% NaOH solution

volume desired * concentration desired = mass of solute needed

10ml * 0.0125g/ml = 0.125gr

i.e., 0.125 gr of NaOH is needed to add to 10ml of water.

Related Questions

Navigate

• Browse (All)
• Browse E
• Subjects

---

---

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