How many moles of \(\text{NO}_3\) are there in 6.2 g?
Answer (3)
6.2 divided by the mass number of NO3 is 0.1 moles. Anytime your trying to find the moles of something you divide it by the mass number of your combined elements.
Answer : The number of moles of N O 3 is, 0.1 moles
Solution : Given,
Mass of N O 3 = 6.2 g
Molar mass of N O 3 = 62 g/mole
Now we have to calculate the moles of N O 3 .
Moles of N O 3 = Molar mass of N O 3 Mass of N O 3 = 62 g / m o l e 6.2 g = 0.1 m o l es
Therefore, the number of moles of N O 3 present in 6.2 g is, 0.1 moles
In 6.2 g of nitrate ions NO 3 − , there are approximately 0.1 moles. This is calculated by dividing the mass by the molar mass of nitrate, which is 62 g/mol. Therefore, (\text{Moles of } \text{NO}_3^{-} = \frac{6.2 \text{ g}}{62 \text{ g/mol}} = 0.1 \text{ moles}.
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