an unsaturated solution is made by completely dissolving 20.0 grams of NaNO3 in 100.0 grams of water at 20.0 degrees celcius. show a corrct numerical sat up for calculating the number of moles of nano3(gram-formula mass = 85.0 grams per mole) used to make this unsaturated solution.
drbob chill out
To calculate the number of moles of NaNO3 used to make the unsaturated solution, you can use the formula:
Number of moles = mass / molar mass
Given values:
Mass of NaNO3 = 20.0 grams
Molar mass of NaNO3 = 85.0 grams per mole
Plugging in these values into the formula, we get:
Number of moles = 20.0 grams / 85.0 grams per mole
Therefore, the correct numerical set up for calculating the number of moles of NaNO3 used to make the unsaturated solution is:
Number of moles = 20.0 / 85.0
To calculate the number of moles of NaNO3 used to make the unsaturated solution, we need to use the formula:
Number of moles = Mass / Molar mass
Given:
Mass of NaNO3 = 20.0 grams
Molar mass of NaNO3 = 85.0 grams per mole
Substituting the given values into the formula, we have:
Number of moles = 20.0 grams / 85.0 grams per mole
Therefore, the correct numerical set-up for calculating the number of moles of NaNO3 used to make the unsaturated solution is:
Number of moles = 20.0 grams / 85.0 grams per mole
Note the correct spelling of celsius.
Start sentences with a capital letter. Don't get lazy in chemistry and not use the shift key. nano3 isn't anything. Since you give the gram formula mass as 85.0 g/mol, I assume that is NaNO3.
20.0 g NaNO3 x (1 mol/85.0 g) = ? mols NaNO3.