Answer:
The longest wavelength of radiation with enough energy to break a carbon–carbon bond is 343.75 nm.
Explanation:
E = hc/λ
E: energy = 348 000 J / 6.022 x 10²³ = 5.7788 x 10⁻¹⁹ J
h: Planck's constant = 6.62607004 × 10⁻³⁴ J.s
c: speed of light = 299 792 458 m / s
λ: wavelength
λ = hc/E
λ = (6.62607004 × 10⁻³⁴ J.s x 299 792 458 m / s) / 5.7788 x 10⁻¹⁹J
λ = 3.4375 x 10⁻⁷ m
λ = 343.75 nm
Answer:
nothing happens
Explanation:
this just means that the density is lower than the air
Answer:
[H₃O⁺] = 0.7M
[SO₄²⁻] = 0.3M
Explanation:
The HCl in solution produce 1mole of H₃O⁺ and H₂SO₄ produce 2 moles of H₃O⁺.
When two solutions are mixing in equal volumes, the concentrations of both reactants is halved regard to their initial concentrations. That is:
HCl = 0.1M
H₂SO₄ = 0.3M
And H₃O⁺ will be:
0.1M + 2*0.3M = 0.7M
And SO₄²⁻ comes just from H₂SO₄, that means:
[H₂SO₄] = [SO₄²⁻] = 0.3M
