Aqueous solutions of barium chloride and silver nitrate are mixed to form solid

Question

Aqueous solutions of barium chloride and silver nitrate are mixed to form solid silver chloride and aqueous barium nitrate. The balanced molecular equation contains which one of the following terms? AgCl (s) 2AgCl (s) 3AgCl (aq) BaNO_3 (aq) 2Ba(NO_3)_2 (aq) The balanced complete ionic equation contains which of the following terms? 2Ag^+ (aq) 2Ba^2+(aq) Cl^-(aq) NO_3^-(aq) AgCl(aq) Phosphoric acid can be prepared by reaction of sulfuric acid with "phosphate rock" according to the equation: Ca_3 (PO_4)_2 + 3H_2 SO_4 rightarrow 3CaSO_4 + 2H_3 PO_4 Suppose the reaction is carried out starting with 129 g of Ca_3 (PO_4)_2 and 97.4 g of H_2 SO_4. Which substance is the limiting reactant? H_3 PO_4 Ca_3 (PO)_4)2 CaSO_4 H_2SO_4 none of these A 16.4-g sample of HF is dissolved in water to give 2.0 Times 10^2 mL of solution. The concentration of the solution is: 0.82 M 0.16 M 0.8

Explanation / Answer

BaCl + 2AgNO3 —–> Ba (NO3)2 + 2AgCl

7 B)

8 .A),D)

9 . 310.176724 g of calcium phosphate requires 294.237 g of sulphuric acid

1    g of calcium phosphate requires 0.949 g of sulphuric acid

102.212    g of calcium phosphate requires 97.4g of sulphuric acid

so sulphuric acid is the limiting reagent

10) E

molarity=no of moles/volume no of moles of HF=16.4/20.01=0.82 moles volume=0.2 l

molarity=0.82/0.2=4.09 M

11)B

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