Question

Potassium nitrate has a lattice energy of -163.8 kcal/mol and a heat of hydration of -155.5 kcal/mol

1.How much potassium nitrate has to dissolve in water to absorb 107 kJ of heat? There are 4.184 kJ/kcal. Also note the answer is to be reported in kg.

Answer #1

Potassium nitrate has a lattice energy of -163.8 kcal/mol and a
heat of hydration of -155.5 kcal/mol. How much potassium nitrate
has to dissolve in water to absorb 102 kJ of heat? There are 4.184
kJ/kcal. Also note the answer is to be reported in kg.

Potassium nitrate has a lattice energy of -163.8 kcal/mol and a
heat of hydration of -155.5 kcal/mol.
Question:
How much potassium nitrate has to dissolve in water to absorb
109 kJ of heat? There are 4.184 kJ/kcal. Also note the answer is to
be reported in kg.

Potassium nitrate has a lattice energy of -163.8 kcal/mol and a
heat of hydration of -155.5 kcal/mol. How much potassium
nitrate (in kg) has to dissolve in water to absorb 100 kJ of
heat?

Potassium nitrate has a lattice energy of -163.8
kcal/mol and a heat of hydration of -155.5 kcal/mol.
How much potassium nitrate has to dissolve in water to absorb
104 kJ of heat?
Express your answer using two significant figures.
Answer in kg

Potassium nitrate has
a lattice energy of -163.8 kcal/mol and a heat of hydration of
-155.5 kcal/mol. How much potassium nitrate has to dissolve in
water to absorb 1.00x102 kJ of heat?
Provide your
answer: numberE^n, remember to watch for sig. figs.

Sodium nitrate has a lattice energy of -2.48 x 10^2 kJ/mol, and
a heat of hydration of -234 kJ/mol.
Determine how much heat is evolved or absorbed when 16.5 g of
sodium nitrate completely dissolves in water?

Potassium perchlorate (KClO4) has a lattice energy of -599
kJ/mol and a heat of hydration of -548 kJ/mol.
A) Find the heat of solution for potassium perchlorate when 10.2
g of potassium perchlorate is dissolved with enough water to make
118.5 mLof solution.

Sodium hydroxide (NaOH) has a lattice energy of -887 kJ/mol and
a heat of hydration of -932 kJ/mol. How much solution could be
heated to boiling by the heat evolved by the dissolution of 28.0 g
of NaOH? (For the solution, assume a heat capacity of 4.0 J/g⋅∘C,
an initial temperature of 25.0 ∘C, a boiling point of 100.0 ∘C, and
a density of 1.05 g/mL.)

1.Burning 1.00 mol of methane to form carbon dioxide and water
produces 192 kcal of energy. How much energy is produced when 5.00
mol of methane is burned?

1) A certain substance has a heat of vaporization of 36.02
kJ/mol.36.02 kJ/mol. At what Kelvin temperature will the vapor
pressure be 3.503.50 times higher than it was at 347 K?
2) A total of 767 cal767 cal of heat is added to 5.00 g5.00 g of
ice at −20.0 °C.−20.0 °C.
What is the final temperature of the water?
Specific heat of H2O(s)H2O(s)
2.087 J/(g⋅°C)2.087 J/(g⋅°C)
Specific heat of H2O(l)H2O(l)
4.184 J/(g⋅°C)4.184 J/(g⋅°C)
Heat of fusion for H2OH2O
333.6...

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