Answer:
Mass of oxygen required = 19.5 moles × 16 g/mol = 312 g.
Explanation:
Answer:
3.73 atm
Explanation:
Since there is no change in temperature, we use Boyle's law.
P₁V₁ = P₂V₂ where P₁ = initial pressure of Ar gas = unknown, P₂ = final pressure of Ar gas = 2.74 atm, V₁ = initial volume of Ar gas = 6.30 L and V₂ = final volume of Ar gas = 8.57 L
P₁ = P₂V₂/V₁ = 2.74 atm × 8.57 L/6.30 L = 3.73 atm
Answer:
True
Explanation:
as the ph of pure water is 7
(-)log(10^-7) = 7
Answer:
Approx. 20 moles of iron.
Explanation:
There are approx. 6.022 x 10.23 iron atoms per mole of iron. In this quantity, The number of iron atoms has a mass of
55.85 ⋅ g.
