The mass is 890,9 g for the anhydrous copper(II) nitrate.
The molar mass of anhydrous copper nitrate is 187,5558 g.
The molar mass of NaNO3 is 84.9947 g/mol. Multiplying by 0.254 mol gives 21.5886538 g, or correctly sigFig'd, 21.6 g
63.5 g/mol
Molecular mass of Cu(NO3)2 :-63.54+2(14+16x3)=187.54g/mol Number of moles=1.56/187.54=0.008318mol
63.55 g/mol (63.55 grams per mole)
1170g
Since the question is about molecular mass, the weight of the reactant copper (45.6 g) is not determining the answer.There are three possible copper nitrate products:Cu(I) nitrate, CuNO3 molecular mass is 125.5509 g.mol-1Anhydrous Cu(II) nitrate, Cu(NO3)2 : molecular mass is 187.5558 g.mol-1Cu(II) nitrate-trihydrate, (Cu(NO3)2).(3H2O) : molecular mass is 241.60 g/mol
The molar mass of anhydrous copper nitrate is 187,5558 g.
169.8731 g/mol
80.043 g/mol
148.3 g mol-1
1 mole Cu(NO3)2 = 187.5558g 6.36mol Cu(NO3)2 x 187.5558g/mol = 1190g (rounded to 3 significant figures)
Mass of Nitrogen: 14g/mol Mass of Ammonium Nitrate (NH4NO3): 14 + 1x4 + 14 + 16x3 = 80g/mol ∴ % of Nitrogen in Ammonium Nitrate = 14/80 * 100 = 17.5%
Hydrogen nitrate has a mass of 63.01 g/mol. In order to find the number of moles you divide the grams by the molar mass. 250/63.01 = 3.96 mol.
CuNO2 is copper (I) nitrite. The molar mass of CuNO2 is 109.5515 g/mol. Cu = Copper (Atomic weight = 63.546) N = Nitrogen (Atomic weight = 14.0067) O = Oxygen (Atomic weight = 15.9994)
The molar mass of NaNO3 is 84.9947 g/mol. Multiplying by 0.254 mol gives 21.5886538 g, or correctly sigFig'd, 21.6 g
The molar mass of copper chloride is 98.999 g/mol.