Answer:
1. How many atoms are in 6.5 moles of zinc? 6.5 moles. 6.02 x 10. 23 atoms = atoms. 3. Convert 2.35 moles of carbon to atoms. 2.35 moles 6.02 x 10. 23.
LRT benefits
The Costs and Benefits of Light Rail:
- reducing traffic congestion
- reducing pollution
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- fostering economic development
providing a means of transportation for the poor.
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Answer:
48
Explanation:
be cuas of the degrees he sawu you and iwent ooh
Answer:
a. 0,035M
Explanation:
For the reaction:
Ba(OH)₂(s) ⇄ Ba²⁺(aq) + 2OH⁻(aq)
Ksp is defined as:
Ksp = [Ba²⁺] [OH⁻]²
5x10⁻³ = [Ba²⁺] [OH⁻]²
if is added a solution of 1M of Ba²⁺:
5x10⁻³ = [1M] [OH⁻]²
The addition of barium hydroxide Ba(OH)₂ gives:
[Ba²⁺] = 1M + x
[OH⁻]² = 2x
Replacing:
5x10⁻³ = [1 + x] [2x]²
5x10⁻³ = 4x² + 4x³
Solutions are:
x = -1,00 M
x = -0,036 M
<em><u>x = 0,035 M</u></em> → Right answer, there are not negative concentrations.
Thus, solubility is
<em>a. 0,035M</em>
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Answer:
The iron is in the +3 oxidation state, which is what the III means.