Smog
formed by mixture of smoke and fog
<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.
Answer:
Mendeleev arranged the elements in order of increasing relative atomic mass . When he did this he noted that the chemical properties of the elements and their compounds showed a periodic trend .
Explanation:
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It is advisable to wear long sleeve when when a student is working in a chemistry lab so that to protect arms from lab chemicals. when someone enter the chemistry lab to wort or to study should be well prepared with appropriate gears and security measure to avoid injury.
Options:
- NaOH(aq)
- NaOH(l)
- N2(g)
- NO(g)
Answer: <em>NaOH (aq)</em>
Explanation:
Defining state terminologies, '<em>aq' </em>means aqueous, meaning the analyte is in solution, as opposed to gaseous (g), or liquid (l).