Molar mass of nitric acid (HNO3) =atomic mass of hydrogen + atomic mass of nitrogen +3x atomic mass of oxygen . The molar mass of nitric acid (HNO3) is 63.0144 gram per mole, but you have 3.4 moles. Therefore; the answer is 63.0144 g/mole x 3.4 moles = 214.24896 grams.
Answer:
b and c
Explanation:
the problem was solved through the experiment and tested
Answer:
The answer to your question is the letter d. -132.8 kJ
Explanation:
To solve this problem, just observe that the ΔH is originally equal to +66.4 kJ.
If we change the order of the reaction, ΔH changes its sign but the value is the same.
Finally, if we duplicate the number of moles, also the ΔH increases twice.
For this problem
ΔH = 2(-66.4 kJ)
ΔH = - 132.8 kJ