Answer:
11.905 km/L
Explanation:
Given that,
A car gets 28.0 miles/gallon of gas on the highway.
We need to find the volume into km/L
We know that,
1 mile = 1.60934 km
Also,
1 gallon = 3.785 litre
So,

Hence, the car get 11.905 km/L of the gas.
Answer:
The nucleus is composed of protons and neutrons. A nucleus usually refers to the central core of something.
Explanation:
Answer: There are 0.00269 moles of acetic acid in buffer.
Explanation:
To calculate the number of moles for given molarity, we use the equation:
.....(1)
Molarity of acetic acid solution = 0.0880 M
Volume of solution = 30.6 mL
Putting values in equation 1, we get:

Thus there are 0.00269 moles of acetic acid in buffer.