chemistry

posted by .

2Na3PO4 + 3CaCl2 ----> Ca3 (PO4)2 + 6NaCl

how many moles of CaCl2 remain if .10 mol Na3PO4 and .40 mol CaCl2 are used?


When amounts of both materials are listed one must worry about which is the limiting reagentalthough the problem seems to suggest that Na3PO4 is the limiting reagent. We can take them in order. I don't have great eye sight but I think your numbers are 0.10 mol Na3PO4 and 0.40 mol CaCl2.

0.10 mol Na3PO4 x [3 mol CaCl2/2 mol Na3PO4] =0.15 mol CaCl2 and that subtracted from 0.40 = 0.25 mol CaCl2 remaining. You can check this out; all of the Na3PO4 should have been used and it is the limiting reagent.

0.40 mol CaCl2 x [2 mol Na3PO4/3 mol CaCl2 = 0.267 mol Na3PO4. We didn't have that much initially; therefore, all of it must have been consumed. I hope this helps.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Chemistry

    How many moles of K3PO4 are required to react completely with 4.5 moles of CaCl2 2K3PO4 + 3CACl -> Ca3(PO4)2 + 6KCL
  2. Chemistry

    Identify the balanced net ionic equation for the reaction 2Na3PO4(aq) + 3CaCl2(aq)¨ 6NaCl(aq) + Ca3(PO4)2(s)
  3. Chemistry

    Write the net ionic equation for this reaction occurring in water: Sodium phosphate and calcium chloride are mixed to form sodium chloride and calcium phosphate. 1. No reaction occurs. 2. 2Na3PO4 + 3Ca2+ -> 6Na+ + Ca3(PO4)2 3. 2 …
  4. Chemistry

    3Ca(NO3)2(aq)+2Na3PO4(aq)->Ca3(PO4)2(s)+6NaNO3(aq) A.)the moles Na3PO4 required to react with 2.03 L of 0.891 M Ca(NO3)2 B.)the grams of Ca3(PO4)2 that can be obtained from 136 mL of 0.627 M Ca(NO3)2 C.)the volume of 0.76 M Na3PO4 …
  5. Chemistry

    3Ca(NO3)2(aq)+2Na3PO4(aq)->Ca3(PO4)2(s)+6NaNO3(aq) (a) the grams of Ca3(PO4)2 that can be obtained from 126 mL of 0.750 M Ca(NO3)2 (b) the volume of 0.10 M Na3PO4 needed to react with 13 mL of 0.30 M Ca3(NO3)2 (c) the molarity (M) …
  6. Chemistry

    If 0.0142 M aqueous Cl- is produced stoichiometrically according to the balanced equation in a reaction solution with a total volume of 1480 mL, how many mol of solid Ca3(PO4)2 are produced?
  7. chemistry(Please Check)

    CaCl2(aq)+Na3PO4(aq) -----------> Ca3(PO4)2(s) +NaCl(aq)4) If the “H” for this reaction is -45.5 kJ/mol, is the reaction endo- or exothermic?
  8. chemistry

    3CaCl2+2Na3PO4 -----------> 1Ca3(PO4)2+6NaCl Did I correctly balance this equation?
  9. Chemistry

    Equation: 3CaCl2 (aq) + 2 Na3PO4 (aq) → Ca3(PO4)2 (s) + 6 NaCl (aq) How many grams of Ca3(PO4)2 are formed when 450.0 g NaCl are formed in the reaction?
  10. Chemistry

    How mush CaCl2, in grams, is needed to make 2.0 L of a 3.5M solution?

More Similar Questions