Answer:
1.125 x 10⁻³.
Explanation:
- For the reaction: <em>2NO(g) + Cl₂(g) → 2NOCl(g).</em>
<em>Kc = [NOCl]²/[NO]²[Cl₂],</em>
Where, [NOCl], [NO], and [Cl₂] is the equilibrium concentration of NOCl, NO, and Cl₂.
∵ Initial concentration of NO and Cl₂ = 0.50 M.
<em>And the equilibrium concentration of NOCl = 0.30 M.</em>
<em />
∴ The equilibrium concentration of NO, and Cl₂: [NO] = [Cl₂] = 0.50 M - 0.30 M = 0.20 M.
<em>∴ Kc = [NOCl]²/[NO]²[Cl₂]</em> = [0.30]²/[0.20]²[0.20] = <em>1.125 x 10⁻³.</em>
Answer: 203.5 millilitres
Explanation: ???
1 molecule CO2 has 2 atoms O.
1 mole CO2 has 2 moles O,
1.5 mole CO2 has 2*1.5 mole O=3.0 mole O
<span>number of moles= mass / molecular mass
mass=131.50g
molecular mass of Zn(NO3)2 =189.39 g/mol
number of moles = 131.50 g/189.39 g/mol =0.69433 mol</span>
Answer:
metals and nonmetals
Explanation:
that's your answer have a nice day
