The water cycle does not ensure that we have water. We must HAVE water to cause water cycle.
Evaporation, then condensation, and finally precipitation.
This would happen in order.
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Answer:
THE MOLARITY IS 2.22 MOL/DM3
Explanation:
The solution formed was as a result of dissolving 37.5 g of Na2S in 217 g of water
Relative molecular mass of Na2S = ( 23* 2 + 32) = 78 g/mol
Molarity in g/dm3 is the amount of the substance dissolved in 1000 g or 1 L of the solvent. So we have;
37.5 g of Na2S = 217 g of water
( 37.5 * 1000 / 217 ) g = 1000 g of water
So, 172.81 g/dm3 of the solution
So therefore, molarity in mol/dm3 = mol in g/dm3 / molar mass
Molarity = 172.81 g/dm3 / 78 g/mol
Molarity = 2.22 mol/dm3
The molarity of the solution is 2.22 mol/dm3
Answer:
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Answer:
Explanation:
before the reaction you have N=2 and H=6 after the reaction you have N=2 and H=6 so yes it follows the law
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ANSWER:</h2>
Avogadro's Number, NA , =6.022×1023⋅mol−1 . = 6.022×1024 individual water molecules.
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