Answer:
The products of combustion reactions are compounds of oxygen, called oxides.
Explanation:
Answer:
3.68 L
Explanation:
- Use combined gas law
- Change C to K
- Hope that helped! If you want to learn how to do these, I would be glad to help.
There are a lot of empty space between the particles
When molecular hydrogen<span> </span><span>and </span>oxygen<span> </span><span>are combined and allowed to react together, energy is released and the molecules of </span>hydrogen and oxygen<span>can combine to </span>form<span> either </span>water<span> or </span>hydrogen<span>peroxide.</span>
Answer:
Explanation:
CH₃CHOHCOOH ⇄ CH₃CHOHCOO⁻ + H⁺
ionisation constant = 1.36 x 10⁻⁴ .
molecular weight of lactic acid = 90 g
moles of acid used = 20 / 90
= .2222
it is dissolved in one litre so molar concentration of lactic acid formed
C = .2222M
Let n be the fraction of moles ionised
CH₃CHOHCOOH ⇄ CH₃CHOHCOO⁻ + H⁺
C - nC nC nC
By definition of ionisation constant Ka
Ka = nC x nC / C - nC
= n²C ( neglecting n in the denominator )
n² x .2222 = 1.36 x 10⁻⁴
n = 2.47 x 10⁻²
nC = 2.47 x 10⁻² x .2222
= 5.5 x 10⁻³
So concentration of hydrogen or hydronium ion = 5.5 x 10⁻³ g ion per litre .