Answer:
C)
Explanation:
M1V1 = M2V2
40.0ml*0.25M = M2*50.0ml
M2 = 40.0*0.25/50.0 = 0.20 M
Answer:
The independent variable is the type of material
The dependent variable is the thermal energy transferred by that material
Explanation:
The type of material is independent of the heat flowing through it. While the thermal energy transferred is surely dependent on the material through which it transfers.
Answer:
iron oxide. aka. oxygen
Explanation:
Rust is the result of a chemical reaction between iron and oxygen, otherwise known as iron oxide. Since steel wool -- and steel in general -- is largely made of iron, steel wool is prone to rust if it doesn't have a rustproof coating on it. The actual reaction that creates rust happens when two iron atoms mix with three oxygen atoms in water; the oxygen bonds to the metal, and a new compound is formed.
This is an incomplete question, here is a complete question.
A 6.55 g sample of aniline molar mass = 93.13 g/mol) was combusted in a bomb calorimeter. If the temperature rose by 32.9°C, use the information below to determine the heat capacity of the calorimeter.
ΔH°rxn = -1.28 × 10⁴ kJ
Answer : The heat capacity of the calorimeter is,
Explanation :
First we have to calculate the moles of aniline.
Now we have to calculate the heat releases.
As, 4 mole of aniline on combustion to releases heat =
So, 0.0703 mole of aniline on combustion to releases heat =
Now we have to calculate the heat capacity of the calorimeter.
Thus, the heat capacity of the calorimeter is,
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