Question
In: Chemistry
When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution...
When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution (dissolving) can be determined using a coffee cup calorimeter. In the laboratory a general chemistry student finds that when 4.56 g of NH4Cl(s) are dissolved in 116.60 g of water, the temperature of the solution drops from 24.83 to 22.08 °C. The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.65 J/°C. Based on the student's observation, calculate the enthalpy of dissolution of NH4Cl(s) in kJ/mol. Assume the specific heat of the solution is equal to the specific heat of water. ΔHdissolution = ____ kJ/mol
Solutions
queen_honey_blossom answered 2 years agoRelated Solutions
When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution...
When a solid dissolves in water, heat may be evolved or
absorbed. The heat of dissolution (dissolving) can be determined
using a coffee cup calorimeter. In the laboratory a general
chemistry student finds that when 8.77 g of CsBr(s) are dissolved
in 115.80 g of water, the temperature of the solution drops from
22.62 to 20.13 °C. The heat capacity of the calorimeter (sometimes
referred to as the calorimeter constant) was determined in a
separate experiment to be 1.62 J/°C....
When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution...
When a solid dissolves in water, heat may be evolved or
absorbed. The heat of dissolution
(dissolving) can be determined using a coffee cup
calorimeter.
In the laboratory a general chemistry student finds that when
2.06 g of CaCl2(s) are
dissolved in 112.20 g of water, the temperature of
the solution increases from 23.13
to 26.44 °C.
The heat capacity of the calorimeter (sometimes referred to as the
calorimeter constant) was determined in a separate
experiment to be 1.84 J/°C....
When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution...
When a solid dissolves in water, heat may be evolved or
absorbed. The heat of dissolution
(dissolving) can be determined using a coffee cup
calorimeter.
In the laboratory a general chemistry student finds that when
0.68 g of KOH(s) are dissolved in
104.30 g of water, the temperature of the solution
increases from 22.14 to
23.80 °C.
The heat capacity of the calorimeter (sometimes referred to as the
calorimeter constant) was determined in a separate
experiment to be 1.82 J/°C....
When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution(dissolving)...
When a solid dissolves in water, heat may be evolved or
absorbed. The heat of
dissolution(dissolving) can be determined using a
coffee cup calorimeter.
In the laboratory a general chemistry student finds that when
5.22 g of CsClO4(s)
are dissolved in 100.70 g of water, the
temperature of the solution drops from
23.33 to 20.10 °C.
The heat capacity of the calorimeter (sometimes referred to as the
calorimeter constant) was determined in a separate
experiment to be 1.64 J/°C.
Based...
1) When a solid dissolves in water, heat may be evolved or absorbed. The heat of...
1)
When a solid dissolves in water, heat may be evolved or
absorbed. The heat of dissolution (dissolving) can be determined
using a coffee cup calorimeter.
In the laboratory a general chemistry student finds that when
2.99 g of CuSO4(s) are dissolved in 109.10 g of water, the
temperature of the solution increases from 23.83 to 26.84 °C.
The heat capacity of the calorimeter (sometimes referred to as
the calorimeter constant) was determined in a separate experiment
to be 1.58...
1) When a solid dissolves in water, heat may be evolved or absorbed. The heat of...
1) When a solid dissolves in water, heat may be evolved or
absorbed. The heat of dissolution
(dissolving) can be determined using a coffee cup
calorimeter.
In the laboratory a general chemistry student finds that when
23.66 g of
Cs2SO4(s) are dissolved in
105.90 g of water, the temperature of the solution
drops from 24.54 to
21.19 °C.
The heat capacity of the calorimeter (sometimes referred to as the
calorimeter constant) was determined in a separate
experiment to be 1.60...
1a. When a solid dissolves in water, heat may be evolved or absorbed. The heat of...
1a. When a solid dissolves in water, heat may be evolved or
absorbed. The heat of dissolution
(dissolving) can be determined using a coffee cup
calorimeter.
In the laboratory a general chemistry student finds that when
1.33 g of CaBr2(s) are
dissolved in 103.70 g of water, the temperature of
the solution increases from 24.23
to 25.85 °C.
Based on the student's observation, calculate the enthalpy of
dissolution of CaBr2(s) in
kJ/mol.
Assume the specific heat of the solution is...
1. When a solid dissolves in water, heat may be evolved or absorbed. The heat of...
1. When a solid dissolves in water, heat may be evolved or
absorbed. The heat of dissolution (dissolving) can be determined
using a coffee cup calorimeter. In the laboratory a general
chemistry student finds that when 11.14 g of CsBr(s) are dissolved
in 119.50 g of water, the temperature of the solution drops from
22.60 to 19.51 °C. The heat capacity of the calorimeter (sometimes
referred to as the calorimeter constant) was determined in a
separate experiment to be 1.61...
When a solid dissolves in water, the solution may become hotter or colder. The dissolution enthalpy...
When a solid dissolves in water, the solution may become hotter
or colder. The dissolution enthalpy (dissolving) can be determined
using a coffee cup calorimeter. In the laboratory a general
chemistry student finds that when 2.81 g KClO4(s) is dissolved in
111.30 g water, the temperature of the solution drops from 24.18 to
21.80 °C. The heat capacity of the calorimeter (sometimes referred
to as the calorimeter constant) was determined in a separate
experiment to be 1.69 J/°C. Based on...
How much heat in kilojoules is evolved or absorbed in the reaction of 292.5 g of...
How much heat in kilojoules is evolved or absorbed in the
reaction of 292.5 g of calcium oxide with enough carbon to produce
calcium carbide? CaO(s)+3C(s)→CaC2(s)+CO(g) ΔH∘ = 464.6kJ
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