Answer:
D, The volume will be multiplied by a factor of 4
Explanation:
First find the height
V = π(r^2)h
Plug in what we know
83 = π(3^2)h
83 = π(9)h
83 = (9π)h
9
= 28.27
83/28.27 = (28.27)h/28.27
h = 2.94
Then find the volume of the new can by doubling the radius
3 x 2 = 6
r = 6
V = π(r^2)h
V = π(6^2)2.94
V = π(105.84)
V =332.51
For the first one, they rounded to the nearest whole #, so let's do the same.
V = 333
Then divide 333 by 83 to get 4
Therefore, the volume will be multiplied by a factor of 4
The answer is (1) 1.3 M. The first thing you need to do is to convert the unit of gram to mole. The mol number of LiF is 52/26=2 mol. Then using the volume to calculate the molarity: molarity=2/1.5=1.3 M.
The reason why it is easiest to assume the first step is slow is because that would be your rate determining step and would give you the rate law given in the problem. So you take the two compounds from the rate law given and put them as your two reactants in your first step:
NO2 + F2 ---> NO2F + F (all gases)
Your next step needs to make sense for your overall reaction. And you also need to have an intermediate which in this case will be F:
F + NO2 ---> NO2F (again all gases) This is the fast step.
Your intermediate cancels out to give you your overall equation:
2NO2 + F2 ---> 2NO2F (all gases)
The salt in the reaction is potassium sulfate compound. A salt is an ionic compound wherein it is one of the products of an neutralization reaction, together with water, where the reactants are a base and an acid. The salt has generally a neutral charge.
