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Chemistry >>test << chemistry<<
September - Coggle…
Chemistry >>test << chemistry<<
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How to calculate moales
First you must calculate the number of moles in this solution, by rearranging the equation. Number of Moles (mol) = Molarity (M) x Volume (L).
For NaCl, the molar mass is 58.44 g/mol. Now we can use the rearranged equation. Mass (g) = No. Moles (mol) x Molar Mass (g/mol) = 1 x 58.44. = 58.44 g.
The molar mass of any element can be determined by finding the atomic mass of the element on the periodic table.
from gas
PV = nRT, where n is number of moles and R is the universal gas constant, R = 8.31 J/mol ⋅ K.
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Testing for cations
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Testing for ions there is nothing to know, just that there are tests out there