<u>Answer:</u> The new volume of the gas will be 0.233L.
<u>Explanation:</u>
To calculate the new volume of the gas, we will use the equation given by Boyle's Law.
The above law states that the pressure is inversely proportional to the volume of the gas at constant temperature and number of moles.
Mathematically,
(At constant temperature and number of moles)
or,
![P_1V_1=P_2V_2](https://tex.z-dn.net/?f=P_1V_1%3DP_2V_2)
where,
are the initial pressure and volume of the gas.
are the final pressure and volume of the gas.
We are given:
![P_1=300mmHg\\V_1=0.7L\\P_2=900mmHg\\V_2=?L](https://tex.z-dn.net/?f=P_1%3D300mmHg%5C%5CV_1%3D0.7L%5C%5CP_2%3D900mmHg%5C%5CV_2%3D%3FL)
Putting values in above equation, we get:
![300\times 0.7=900\times V_2\\\\V_2=0.233L](https://tex.z-dn.net/?f=300%5Ctimes%200.7%3D900%5Ctimes%20V_2%5C%5C%5C%5CV_2%3D0.233L)
Hence, the new volume of the gas will be 0.233L.
PH = -lg[H+]
pH = -lg[6.38·10-6] = 5.2
Answer:
<h3>The answer is 7.50 g/mL</h3>
Explanation:
The density of a substance can be found by using the formula
![density = \frac{mass}{volume} \\](https://tex.z-dn.net/?f=density%20%3D%20%20%5Cfrac%7Bmass%7D%7Bvolume%7D%20%5C%5C)
From the question
mass of iron = 150 g
volume = 20 mL
We have
![density = \frac{150}{20} = \frac{15}{2} \\](https://tex.z-dn.net/?f=density%20%3D%20%20%5Cfrac%7B150%7D%7B20%7D%20%20%3D%20%20%5Cfrac%7B15%7D%7B2%7D%20%20%5C%5C%20)
We have the final answer as
<h3>7.50 g/mL</h3>
Hope this helps you
Answer: it is just a phrase that mostly everyone uses and they know they ate to much lol
Explanation: