Calculate the mass of sodium phosphate required to prepare 1.75 L of solution in which the sodium ion concentration is 0.25 mol/L

  1. 👍
  2. 👎
  3. 👁
  1. The units given are in mol/L or M

    Solve for moles:

    0.25mol/L= x moles/1.75L

    Solve for x moles:

    x moles=1.75L*(0.25mol/L)

    x moles * molecular weight of sodium phosphate (163.94 g/mol)= mass or Sodium Phosphate

    No more than two significant figures in answer.

    1. 👍
    2. 👎
  2. I believe the answer provided by this solution is three times too large. The problem asks for grams Na3PO4 to provide 0.25 M SODIUM ION. Since there are 3 Na ions per Na3PO4 molecule you need to divide 0.25/3 to begin with, then proceed s in the above.

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. chemistry

    An impure sample of barium hydroxide of mass 1.6524 g was allowed to react with 100 cm3 of 0.200 mol dm-3hydrochloric acid. When the excess acid was titrated against sodium hydroxide, 10.9 cm3 of sodium hydroxide solution was

  2. chemistry

    What is the freezing pint of 0.0091 m aqueous sodium phosphate, Na3PO4? Assume that sodium phosphate is a strong electrolyte and it functions ideally in solution. (express your answer in degrees Celsius)

  3. Chemistry

    How would you prepare 455 g of aqueous solution that is 6.50% sodium sulfate Na2SO4 by mass? percent by mass = grams/100 g solution. X grams/455 = 0.065 solve for X. Subtract 455-X to calculate how much water must be added. ok i

  4. Chemistry

    Write the following into a balanced equation. a) When a mixture of copper (II) oxide and carbon is heated, elemental copper forms and carbon monoxide evolves into the atmosphere. b) When a concentrated solution of sodium hydroxide

  1. Chemistry

    Calculate the molar solubility of calcium phosphate [Ca3(PO4)2 in a solution which is 0.10M in sodium phosphate (Na3PO4). Ksp for calcium phosphate is 1.1x10^-26

  2. science

    Concentrated sulfuric acid (18.4 molar H2SO4) has a density of 1.84 grams per milliliter. After dilution with water to 5.20 molar, the solution has a density of 1.38 grams per milliliter and can be used as an electrolyte in lead

  3. chem

    Calculate the mass of anhydrous sodium carbonate Na2Co3 required to prepare 2.5 litres of 0.50M aqueous solution.(Na=23,C=12,O=16)

  4. chemistry

    A precipitate of calcium phosphate is formed when aqueous solutions of sodium phosphate and excess calcium chloride are mixed. If 100.0 mL of 1.5 M sodium phosphate solution is the limiting reactant, how many grams of calcium

  1. chemistry

    Sodium phosphate, Na3PO4, reacts with HCl to form H3PO4 and NaCl. How many liters of 0.1 M HCl are required to react with 0.1 mole of sodium phosphate?

  2. Chemistry

    A 2.7 M solution of phosphoric acid (H3PO4) is to be reacted with a 7.5 M solution of sodium hydroxide to make sodium phosphate and water. How many L of the H3PO4 solution will react with 0.662 L of the NaOH solution

  3. Biochemistry

    How would you prepare 250ml of 0.2M sodium phosphate buffer of PH 6.4 if the following chemicals are available :dibasic sodium phosphate,monobasic sodium phosphate and 0.129M solution of NaOH. Assume that the pka1 pka2 pka3 of

  4. science will be asked to prepare 25.0 mL of a 0.019 M solution of sodium chloride during this experiment.... a.calculate mass of sodium chloride needed to prepare solution. (0.25L)(0.019M NaCl/L)*(58.5g NaCl/1mole NaCl)=0.278 g

You can view more similar questions or ask a new question.