A NaOH solution of unknown concentration is titrated with 0.250 M HCl. 20.53 mL of the titrant is required to titrate 25.00 mL of the NaOH solution. What is the concentration of the NaOH solution? M H2 is produced by the reaction of 115.5 mL of a 0.8077 M solution of H3PO4 according to 2Cr+2H3PO4⟶3H2+2CrPO4 If there is an excess amount of Cr , what mass of H2 will be produced? g H2 1.50 L of 0.225 M NaOH is mixed with 1.25 L of 0.400 M FeCl3, and the following reaction occurs: 3NaOH(aq)+FeCl3(aq)→3NaCl(aq)+Fe(OH)3(s) What is the theoretical mass of the precipitate that will be produced? g Fe(OH)3 When 20.69 g of Cr is added to 0.750 L of a 0.82 M H3PO4 solution, the following reaction occurs: 2Cr+2H3PO4→2CrPO4+3H2 Calculate the mass of the precipitate, CrPO4, that will be produced and the moles of the reactant in excess that will remain in the solution after the reaction is complete. g CrPO4 mol excess reactant Freon-12, CCl2F2, is prepared from CCl4 by reaction with HF according to: CCl4+2HF→CCl2F2+2HCl If 30.7 g of CCl4 reacts with excess HF, what is the theoretical yield of CCl2F2? g CCl2F2 If this reaction actually produces 18.85 g CCl2F2, what is the percent yield of CCl2F2? %
A NaOH solution of unknown concentration is titrated with 0.250 M HCl. 20.53 mL of the titrant is required to titrate 25.00 mL of the NaOH solution. What is the concentration of the NaOH solution?
M
H2 is produced by the reaction of 115.5 mL of a 0.8077 M solution of H3PO4 according to
2Cr+2H3PO4⟶3H2+2CrPO4
If there is an excess amount of Cr , what mass of H2 will be produced?
g H2
1.50 L of 0.225 M NaOH is mixed with 1.25 L of 0.400 M FeCl3, and the following reaction occurs:
3NaOH(aq)+FeCl3(aq)→3NaCl(aq)+Fe(OH)3(s)
What is the theoretical mass of the precipitate that will be produced?
g Fe(OH)3
When 20.69 g of Cr is added to 0.750 L of a 0.82 M H3PO4 solution, the following reaction occurs:
2Cr+2H3PO4→2CrPO4+3H2
Calculate the mass of the precipitate, CrPO4, that will be produced and the moles of the reactant in excess that will remain in the solution after the reaction is complete.
g CrPO4
mol excess reactant
Freon-12, CCl2F2, is prepared from CCl4 by reaction with HF according to:
CCl4+2HF→CCl2F2+2HCl
If 30.7 g of CCl4 reacts with excess HF, what is the theoretical yield of CCl2F2?
g CCl2F2
If this reaction actually produces 18.85 g CCl2F2, what is the percent yield of CCl2F2?
%
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