H 3 0 + is hydronium ion. OH- is hydroxide ion. H+ is hydrogen ion
Answer:
492.3 cm³.
Explanation:
- 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.
- If P and n are constant, and have different values of T and V:
<em>(V₁T₂) = (V₂T₁).</em>
V₁ = 417.0 cm³, T₁ = 65°C + 273 = 338 K.
V₂ = ??? cm³, T₂ = 126°C + 273 = 399 K.
<em>∴ V₂ = (V₁T₂)/(T₁) =</em> (417.0 cm³)(399 K)/(338 K) = <em>492.3 cm³.</em>
12.2 C
It has 3 significant figures now.
A mass extinction is the rapid decrease in something. so anytime that graph goes down drastically would be a mass extinction
