Answer:
Explanation:
Temperature measures the average kinetic (or motion) energy of the particles within a substance.
Step 1: write the equation:
P₄(s) + 6F₂(g) → 4PF₃(g)
Step 2: Molar mass of P₄ = 30.97 g/mol × 4 = 123.88 g/mol
Step 3: Number of moles of phosphorus
n = m/M
n = 8.5 g/123.88g/mol
n = 0.07 moles
Step 4: 0.07 × 12 = 0.84 moles of fluorine.
Fluorine is diatomic gas so we multiplied the number of moles by 12.
Step 5: To find the mass of fluorine we multiply the number of moles with the molar mass.
Mass of fluorine = 0.84 × 228
= 191.52 grams.
6 electrons in total
2 on the first shell
4 on the second shell
Answer:
Equilibrium will lie to the right.
Explanation:
That means HF is stronger acid than 
.
Alternatively, it can be said that 
is a stronger base than 
.
Therefore HF readily gives proton to to form and than the reverse reaction.
So, the equilibrium will lie more towards the right i.e. towards formation of and .
Answer:
20 Km/hr
Explanation:
You have to divide the Km and Hr
I hope it help you
