Answer:
1. Qsol = -5.87 kJ
2. ΔHrn = 18.4 kJ/mol
Explanation:
According to the law of conservation of energy, the sum of the heat absorbed by the reaction and the heat released by the solution is zero.
Qrn + Qsol = 0
Qrn = -Qsol
We can calculate the heat released by the solution using the following expression.
Qsol = c . m . ΔT
where,
c: specific heat capacity of the solution
m: mass of the solution
ΔT: change in the temperature
Qsol = (4.184 J/g.°C) . (243g + 32.3g) . (17.90°C-23.00°C) = -5.87 × 10³ J = -5.87 kJ
The heat absorbed by the reaction is:
Qrn = -Qsol = 5.87 kJ
In the balanced equation, we have 1 mole of KNO₃. Given we are in a constant-pressure calorimeter, the enthalpy of reaction (per mole of KNO₃) is:
Answer:
fish.
various types of eggs.
dairy products, such as cheese, milk, and whey.
red meat from cows, bison, and deer.
poultry from sources such as chickens, turkeys, and quails.
meat from less common sources, including boars, hares, and horses.
Animal proteins, such as meat, eggs, and milk, are complete proteins, meaning they provide all of the essential amino acids our body needs. Animal products provide the highest-quality protein sources.
Explanation:
Answer:
Write the balanced reaction equation. From this, note the mole ratio of Na to H₂; this enables you to know the number of moles of H₂ produced.
This technique is in your lecture notes and/or your chemistry textbook, so you should not have to ask Quorans to do your homework. (Take the hint.)
Explanation:
635ml will yield 1m of hcl
xml will yield 10m of hcl
that means 6250ml will yield 10m of hcl