Chemistry

posted by .

How many cm3 solution of 36% HCl with density 1.183g/cm3 should be taken to prepare 250cm3 solution with concentration of 0.215 g/dm3.

  • Chemistry -

    First determine the concn of the 36% HCl then use the dilution formula to make whatever concn you need from that.
    1.183 g/cc x 1000 cc x 0.36 x (1 mol/36.5g) = ?M HCl for the 36% stuff. You should get approximately 12M
    I would convert 0.215 g to mols; 0.215/36.5 = about 0.0059

    Then c1v1 = c2v2
    12M x v(in cc) = 0.0059 x 250cc
    Solve for v.

  • Chemistry -

    DrBob222 can you explain one by one.. i didn't get it

  • Chemistry -

    First you want to determine the molarity of the 36% HCl. M = mols/L.
    The density is 1.183 g/cc.
    How much does 1000 mL weigh? That's 1.183 x 1000 mL = ?grams = mass 1 L.
    How much of that is HCl? 36%. So
    ? grams x 0.36 = ? g HCl. The rest of it is water.
    How many mols HCl is that?
    mols HCl = grams HCl/molar mass HCl and molar mass HCl is about 36.5.

    Then follow the c1v1 = c2v2 I gave above.

  • Chemistry -

    DrBob222 thanks for answering.Can it be solved this way:

    0.250dm3 x 0.215g/dm3 / 1.183g/cm3 x 0.36 = 0.1262 cm3

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. chemistry.

    Which solution contains 0,1 mol of sodium hydroxide?
  2. Chemistry

    Can you check if this is correct please? a) How many moles of sodium hydroxide are there in 19.00 cm3 of 0.100 mol dm3?
  3. Chemistry

    We had a lab where the standard solution was potassium hdrogenphthalate. In this we added 3 drops of phenolphtalein indicator and then we ran sodium hydroxide into the solution. We did four different flasks and the final readings for …
  4. chemistry

    What is the mass of dry NaCl sample should be taken for 100 cm3 of 0.5 mol/dm3 aqueous solution?
  5. Chemistry

    How much cm3 solution of concentrated ammonia with 25% density of 0.91g/cm3 should be added to 7 g NH4Cl so we can get a solution of 100cm3 with pH 10 (Kb = 1.8 x 10-5)
  6. Chemistry

    -A sample consist 90% NaOH and 10% CaO,whats the concentration of NaOH in the solution of this 3g sample,dissolved in 250cm3. -How many cm3 of H2SO4 with concentration of 0.255M are needed for titration of 100cm3 of this solution
  7. chemistry

    X is a solution,of dibasic of H2X. G is a solution containing 1.00g of NaOH in 250cm3 of solution . 24.60cm3 of solution F required 25.00cm3 of solution G . From your result and information provided above. (I)concentration of G in …
  8. chemistry

    A large salt crystal having a volume of 56 cm3 and a density of 2.17 g/cm3 was dissolved in to sufficient water to make 375 mL of solution. What is the salt concentration in the solution as g/L?
  9. chemistry

    1. A large salt crystal having a volume of 56 cm3 and a density of 2.17 g/cm3 was dissolved in to sufficient water to make 375 mL of solution. What is the salt concentration in the solution as g/L?
  10. chemistry

    3. A solution is made by dissolving 5.00 g of impure sodium hydroxide in water and making it up to 1.00dm3 of solution. 25.0 cm3 of this solution is neutralized by 30.0 cm3 of hydrochloric acid of concentration 0.102 mol/dm3. a) Calculate …

More Similar Questions