Lithium:(hdhfhdhuudhhdhdhf dhcudhhfhdhfh
Answer:
6.63*10-7 m
Explanation:
The energy of one mole of the compound is obtained by dividing by the Avogadro number. Then the wavelength is obtained from
E= hc/wavelength as shown in the question.
Answer:
Natural sources include decomposition, ocean release and respiration. Human sources come from activities like cement production, deforestation as well as the burning of fossil fuels like coal, oil and natural gas.
If you have a increased number of rod cells
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Answer:
0.24 mol/L.
Explanation:
- Ca(OH)₂ dissociates in solution according to the equation:
<em>Ca(OH)₂ → Ca²⁺ + 2OH⁻.</em>
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Every 1.0 mol of Ca(OH)₂ dissociates to give 2.0 moles of OH⁻.
∴ The no. of moles of OH⁻ produced from 0.06 mol of Ca(OH)₂ = (2 x 0.06 mol) = 0.12 mol.
<em>∴ [OH⁻] = no. of moles / V of the solution</em> = (0.12 mol)/(0.5 L) = <em>0.24 mol/L.</em>
