what is the mass of 1.51 x 10^24 formula units of nano3? (1 mole nano3 = 85.00 g) (1 mole nano3 = 6.02 x…

what is the mass of 1.51 x 10^24 formula units of nano3? (1 mole nano3 = 85.00 g) (1 mole nano3 = 6.02 x 10^23 formula units) ? g nano3

what is the mass of 1.51 x 10^24 formula units of nano3? (1 mole nano3 = 85.00 g) (1 mole nano3 = 6.02 x 10^23 formula units) ? g nano3

Answer

Explanation:

Step1: Calculate the number of moles

Use the conversion factor that 1 mole = 6.02×10²³ formula - units. Let $n$ be the number of moles of $NaNO_3$. Then $n=\frac{1.51\times 10^{24}\text{ formula units}}{6.02\times 10^{23}\text{ formula units/mol}}$. $n = 2.5$ mol

Step2: Calculate the mass

Use the conversion factor that 1 mole of $NaNO_3$ has a mass of 85.00 g. Let $m$ be the mass of $NaNO_3$. Then $m=n\times\text{molar - mass}$. $m = 2.5\text{ mol}\times85.00\text{ g/mol}$ $m = 212.5$ g

Answer:

212.5 g