I have 5 chemistry questions here.
The Ideal Gas Equation states:
PV = nRT
where \"P\" equals the pressure of the gas, \"V\" equals the volumeof the container, \"n\" equals the number of moles of gas in thecontainer, R = the Gas constant (0.082057 L atm K–1mol–1), and \"T\" equals the temperature of the gas
1. Calculate the volume (in litres) of a sealed container with5.67 mol of an ideal gas at a temperature of 374.7 K and pressureof 11.15 atm.
2. The temperature is increasedby 67.4 K.
Calculate the new pressure of the system (assuming no change involume).
3. A chocolate bar was found tohave 3.5609 kilojoules of chemical energy.
Calculate the number of joules of chemical energy in thechocolate bar.
4. Calculate the number ofcalories in this chocolate bar.
| 1.0000 joule= 0.2390 calories |
5.
The pH of a solution is found by the following equation:
pH = –log10[H+]
Calculate the pH of a solution with a [H+] of 0.0218 molL–1.
