Answer is: value of Q is 6·10⁻⁴.
Chemical reaction: CaCrO₄(s) → Ca²⁺(aq) + CrO₄²⁻(aq).
[Ca²⁺] = 0,02 M.
[CrO₄²⁻] = 0,03 M.
Q = [Ca²⁺] · [CrO₄²⁻].
Q = 0,02 M · 0,03 M.
Q = 0,0006 M².
Q <span>is the solubility product when the system is not at equilibrium.</span>
Answer:
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Explanation:
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I think the answer is 500.0 calories
<span>5.824x10^22 atoms of cobalt are in 5.699 grams of cobalt.
First, determine the number of moles of cobalt you have by dividing the mass of cobalt by the atomic weight of cobalt. So
Atomic weight cobalt = 58.933195
Mole cobalt = 5.699 g / 58.933195 g/mol = 0.096702716 mol
Now to determine the number of atoms, multiply by Avogadro's number. So
0.096702716 * 6.0221409x10^23 = 5.823574x10^22
Rounding to 4 significant figures, gives 5.824x10^22</span>
I think that it might represent Velocity