Answer:
The number of mole is 1.852moles
Explanation:
To calculate the number of mole, using the formula
n = m/Mm
n - number of mole
m - number of mass
Mm - number of molar mass
The molar mass of Re = 186.207
Then, n = 345g/ 186.207g/mol
n = 1.852mol
The hardness of water is determined primarily by the amount of calcium and magnesium it contains. ... Instead of having higher levels of calcium and magnesium, soft water tends to have higher concentrations of sodium, or salt.
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2 1^/4 + 11^/2 = 9^/4 + 3^/2 = 9^/4 + 6^/4 = 15^/4 = 3 3^/4
Answer:
they will form a compound
