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What is the molarity of the KCl solution?

What is the molarity of the KCl solution?

One mol of KCl is equal to 74.6 grams (from the periodic chart, the gram-atomic mass of potassium is 39.0 and that of chlorine is 35.5. Add together for the gram-molecular mass of 74.6). If you took 74.6 grams of KCl and diluted this to one liter with water, you would have a 1.00 M KCl solution.

How will you prepare 5 ppm of KCl?

5 ppm means 5 g of solute in 106g of solution .

  1. Mass of soln=20dm³ soln ×1000 g soln1dm³ soln =20 000 g soln.
  2. Mass of Cl−=20000g soln ×5 g Cl−106g soln =0.10 g Cl−
  3. Mass of KCl=0.10g Cl⁻ ×74.55 g KCl35.45g Cl⁻ =0.2 g KCl.

How do you calculate Molality of KCl?

Answer

  1. Answer : The molality of KCl solution is 0.169 mole/Kg.
  2. Solution : Given,
  3. First we have to calculate the mass of solvent.
  4. As we know, Mass of solution = Mass of solute + Mass of solvent.
  5. Now we have to calculate the molality of KCl solution.
  6. Formula used :
  7. Therefore, the molality of KCl solution is 0.169 mole/Kg.
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What is the molar mass of KCl?

74.5513 g/mol
Potassium chloride/Molar mass
Answer and Explanation: The molar mass of a compound is calculated by multiplying the sum of the relative atomic mass Ar of the constituent atoms by the molar mass constant Mu . Where, Mr is the relative molar mass. Hence the molar mass of KCl is obtained as 74.5513 g mol−1 74.5513 g m o l − 1 .

What is the final concentration of chloride ions that remain in solution?

The concentration of chloride remaining is 9×10-10mol/L .

What is the total concentration of ions in a solution?

In addition, the total ion concentration is the sum of the individual ion concentrations. Thus for the 1 M NaCl, the total ion concentration is 2 M; for the 1 M CaCl 2, the total ion concentration is 3 M.

How do I make a 500 ppm solution?

500 ppm translates to 500 mg/L. Then you weigh 500mg of the solid pesticide, dissolve it in a small volume of distilled water and make the solution up to the one litre mark on a measuring cylinder.