science

posted by .

1. what weight in grams of magnesium oxide will produce from burning 96 grams of magnesium?
2. a solution containing 252g of calcium sulfate will produce from 165lbs of phosphate rocks containing 82.5 % pure calcium phosphate treated with sulfuric acid?
3. how many tons of quicklime(calcium oxide)yield out of heating 675 tons of limestone(impure calcium carbonate) containing 95 % pure calcium carbonate?
4. calculate the amt of hydrogen liberated in liter when 260g of zinc treated with sulfuric acid?

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. chemistry

    ARe these chemical formulas correct? monocalcium phosphate: CaPO4 sodium phosphate: Na3PO4 calcium carbonate: CaPO4 Calcium Chloride: CaCl2 Magnesium Sulfate:MgSO4 monopotassium phosphate:KPO4
  2. 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 phosphate …
  3. Chemistry

    If a solution of sodium phosphate, Na3PO4, is poured into seawater, precipitates of calcium phosphate and magnesium phosphate are formed. (Magnesium and calcium ions are among the principle ions found in seawater.) Write net ionic …
  4. Chemistry

    Calcium carbonate is insoluble in water. Name two substances that when mixed in solution, will form a precipitate of calcium carbonate. Explain why is it the two substances that you have chosen. ¬†why does magnesium chloride cannot …
  5. chemistry

    A sample being given as a laboratory unknown is a mixture of calcium carbonate and magnesium carbonate. Both substances decompose to form calcium oxide and magnesium oxide, respectively, when heated at a high temperature for a prolonged …
  6. Chemistry

    Calcium oxide can be prepared by heating calcium metal in oxygen according to the reaction: 2Ca+ O(2) --> 2CaO. How many grams of calcium would be needed to produce 15.0 grams of calcium oxide?
  7. science

    magnesium oxide reacts with phosphoric, H3PO4 TO PRODUCE MAGNESIUM PHOSPHATE AND WATER. HOW MANY GRAMS OF MAGNESIUM OXIDE ARE REQUIRED TO REACT COMPLETELY WITH 33.5G OF PHOSPORIC ACID?
  8. CHEM MOLES !@@!

    Mole Calculation Worksheet 1) How many moles are in 15 grams of lithium?
  9. chemistry

    a 36 grams sample of calcium hydroxide is allowed to react with 40.5 grams of phosphoric acid according to the following reaction. how many grams of calcium phosphate are produced?
  10. chemistry

    Stoichiometrics: a 36 grams sample of calcium hydroxide is allowed to react with 40.5 grams of phosphoric acid according to the following reaction. 3Ca(OH)2 + 2H3PO4 = Ca3(PO4)2 + 6H2O how many grams of calcium phosphate are produced?

More Similar Questions