The skateboard's acceleration would decrease.
The larger the mass of an object, the more force is required to move it.

dissolves in water to give

and

ions according to the following reaction:

-------->

+ 2

So, according to the above reaction, 1 mole of

produce 2 moles of

ion,
So, 0.3 mole will give = 0.3 x 2 = 0.6 moles of

ion
So, Molar concentration =

Note: 1L = 1000mL
Liters of gas at 14.7 psi: 3674 L
Explanation:
We can solve this problem by using Boyle's law, which states that:
"For an ideal gas kept at constant temperature, the pressure of the gas is inversely proportional to its volume"
Mathematically:

where
p is the gas pressure
V is its volume
This law can also be rewritten as

Where:
is the initial pressure of the gas
is the initial volume of the gas
is the final pressure of the gas
is the final volume
Therefore, we can calculate the volume of gas corresponding to 14.7 psi of pressure:

Learn more about ideal gases:
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