A gas occupies 11.2 L at a pressure of 35.0 mm . What is the volume of the gas if it is Increased to a pressure of 64.0 mm Hg?
1 answer:
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Answer: a)
b) 1 mole of is produced.
Explanation:
According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.
The skeletal equation is:
The balanced equation will be:
Thus the coefficients are 2, 3 , 10 , 4 , 3 , 2 and 5.
b) Oxidation:
Reduction:
Net reaction:
When 1 mole of is produced, 1 mole of
is produced.
Answer:
Explanation:
Given : Sample size : n= 30 , it means it is a large sample (n≥ 30), so we use z-test .
Significance level :
Critical value:
Sample mean :
Standard deviation :
The formula to find the confidence interval is given by :-
i.e.
i.e.
Hence, the 95% confidence interval for the mean mpg in the entire population of that car model =