Question

Zinc metal reacts with hydrochloric acid according to the following balanced equation. Zn(s)+2HCl(aq)→ZnCl2(aq)+H2(g) When 0.106 g of Zn(s) is combined with enough HCl to make 54.5 mL of solution in a coffee-cup calorimeter, all of the zinc reacts, raising the temperature of the solution from 21.6 ∘C to 24.5 ∘C. Find ΔHrxn for this reaction as written. (Use 1.0 g/mL for the density of the solution and 4.18 J/g⋅∘C as the specific heat capacity.) In kJ/mol.

Answer #1

Zinc metal reacts with hydrochloric acid according to the
following balanced equation. Zn(s)+2HCl(aq)→ZnCl2(aq)+H2(g) When
0.106 g of Zn(s) is combined with enough HCl to make 50.6 mL of
solution in a coffee-cup calorimeter, all of the zinc reacts,
raising the temperature of the solution from 21.5 ∘C to 24.4 ∘C.
Find ΔHrxn for this reaction as written. (Use 1.0 g/mL for the
density of the solution and 4.18 J/g⋅∘C as the specific heat
capacity.)

Zinc metal reacts with hydrochloric acid according to the
following balanced equation. Zn(s)+2HCl(aq)→ZnCl2(aq)+H2(g) When
0.119 g of Zn(s) is combined with enough HCl to make 53.4 mL of
solution in a coffee-cup calorimeter, all of the zinc reacts,
raising the temperature of the solution from 21.7 ∘C to 24.5 ∘C.
Part A Find ΔHrxn for this reaction as written. (Use 1.0 g/mL for
the density of the solution and 4.18 J/g⋅∘C as the specific heat
capacity.)

Zinc metal reacts with hydrochloric acid according to the
following balanced equation. Zn(s)+2HCl(aq)→ZnCl2(aq)+H2(g) When
0.107 g of Zn(s) is combined with enough HCl to make 51.6 mL of
solution in a coffee-cup calorimeter, all of the zinc reacts,
raising the temperature of the solution from 22.2 ∘C to 24.3 ∘C.
Find ΔHrxn for this reaction as written. (Use 1.0 g/mL for the
density of the solution and 4.18 J/g⋅∘C as the specific heat

Zinc metal reacts with hydrochloric acid according to the
following balanced equation. Zn(s)+2HCl(aq)→ZnCl2(aq)+H2(g) When
0.103 g of Zn(s) is combined with enough HCl to make 55.0 mL of
solution in a coffee-cup calorimeter, all of the zinc reacts,
raising the temperature of the solution from 21.7 ∘C to 24.4
∘C.

Zinc reacts with hydrochloric acid according to the reaction
equation
Zn(s) + 2HCl(aq) -> ZnCl2(aq) + H2(g)
How many milliliters of 6.50 M HCl(aq) are required to react
with 3.05 g of Zn(s)?

Zinc reacts with hydrochloric acid according to the reaction
equation Zn (s)+2HCl (aq)--> ZnCl2 (aq) + H2(g) How many
milliliters of 2.50 M HCl(aq) are required to react with 3.55 g of
an ore containing 37.0% Zn(s) by mass?

Zinc reacts with hydrochloric acid according to the reaction
equation
Zn(s) + 2HCL (aq) -----------> ZnCl2(aq) + H2(g)
How many milliliters of 2.00 M HCl(aq) are required to react
with 7.05 g of an ore containing 38.0% Zn(s) by mass?

Manganese reacts with hydrochloric acid to produce manganese(II)
chloride and hydrogen gas. Mn(s)+2HCl(aq) → MnCl2(aq)+H2(g). When
0.605 g Mn is combined with enough hydrochloric acid to make 100.0
mL of solution in a coffee-cup calorimeter, all of the Mn reacts,
raising the temperature of the solution from 23.2 ∘C to 28.7 ∘C.
Find ΔHrxn for the reaction as written. (Assume that the specific
heat capacity of the solution is 4.18 J/g∘C and the density is 1.00
g/mL.)

Manganese reacts with hydrochloric acid to produce manganese(II)
chloride and hydrogen gas.
Mn(s)+2HCl(aq) →
MnCl2(aq)+H2(g)
When 0.615 g Mn is combined with
enough hydrochloric acid to make 100.0 mL of solution in a
coffee-cup calorimeter, all of the Mn reacts, raising the
temperature of the solution from 24.0 ∘C to 28.4 ∘C.
Find ΔHrxn = ? kJ for the reaction as written. (Assume
that the specific heat capacity of the solution is 4.18 J/g∘C and
the density is 1.00 g/mL.)

Manganese reacts with hydrochloric acid to produce manganese(II)
chloride and hydrogen gas.
Mn(s)+2HCl(aq) →
MnCl2(aq)+H2(g)
1. When 0.630 g Mn is combined with enough hydrochloric acid to
make 100.0 mL of solution in a coffee-cup calorimeter, all of the
Mn reacts, raising the temperature of the solution from 24.0 ∘C to
28.1 ∘C.
Find ΔHrxn for the reaction as written. (Assume that the
specific heat capacity of the solution is 4.18 J/g∘C and the
density is 1.00 g/mL.) (express answer...

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