Answer:
Ok so, I think I have it, but it might not be right, but 16 grams of oxygen
Explanation:
2H+O=H2O
36gH2O x 1mol/18g(molar mass of water)= 2 moles of water
20 grams of H2 x 1/2= 10 moles of H2
2 moles of H2 react with 1 mole of O2 to produce 2 moles of water, so...
1 mole O2 x 16g/mole = 16 g O2
Answer:
5.42
Explanation:
Step 1: Consider the dissociation of NH₄Br
NH₄Br(aq) ⇒ NH₄⁺(aq) + Br⁻(aq)
Br⁻ is the conjugate base of HBr, a strong acid, so it doesn´t react with water. NH₄⁺ is the conjugate acid of NH₃, so it does react with water.
Step 2: Consider the acid reaction of NH₄⁺
NH₄⁺(aq) + H₂O(l) ⇄ NH₃(aq) + H₃O⁺(aq)
Step 3: calculate the acid dissociation constant for NH₄⁺
We will use the following expression.
Step 4: Calculate the concentration of H₃O⁺
We will use the following expression.
Step 5: Calculate the pH
We will use the following expression.
One of the atoms involved must be a metal and the other a nonmetal
It tells you how many atoms it has, how many protons it contains and the number of electrons.
Answer:
Explanation:
5.81 x 10^-7 m x 10^-9nm/ 1m
=5.81 x 10^-16 nm