Answer:
0.3811 mol.
Explanation:
- To calculate the no. of moles of a gas, we can use the general law of ideal gas: <em>PV = nRT</em>.
where, P is the pressure of the gas in atm.
V is the volume of the gas in L.
n is the no. of moles of the gas in mol.
R is the general gas constant,
T is the temperature of the gas in K.
∵ P = 2.1 atm, V = 4.5 L, T = 302 K, R = 0.0821 L.atm/mol.K.
<em>∴ n = PV/RT </em>= (2.1 atm)(4.5 L)/(0.0821 L.atm/mol.K)(302.0 K) = <em>0.3811 mol.</em>
<span>True
Petroleum and coal can be mined from the continental shelf. Hot magma from inside the Earth seeps out from the crevices in the mid-ocean ridge. There is speculation regarding whether this is a cost-effective technique. Fossil fuels and mineral deposits can be located all throughout the continental shelf and also in some of the deepest depths of the ocean.</span>
You can develop acute radiation syndrome or skin cancer.
Chromium nitride
Chromium nitride is a chemical compound of chromium and nitrogen with the formula CrN.
