
What is the molar mass of Ca(NO3)2? (3 points) 102.2 g/mol 134.1 g/mol O 164.1 g/mol...
QUESTION 4 What is the molar mass of nitroglycerin, C3H5(NO3)3? O 199 g/mol O 179 g/mol O 227 g/mol O 185 g/mol QUESTION 5 The number of moles in 37.80 g of C2H60 (molar mass = 46.1 g/mol) is 1.575 x 100 9.072 x 102 1.743 x 103 8.200 x 10-1 QUESTION 6 Determine the percentage composition (by mass) of oxygen in H2SO4. 65.25 %
The molar mass of CaCO3 is greater than the molar mass of Ca(NO3)2 True or False True False
Question 14 of 15 Determine the molar mass of Mg(NO3)2. g/mol 1 4 2 5 3 6 7 8 9
579.5 g of Al(NO3)3 (molar mass = 212.996g/mol) was dissolved in 17.89 kg of water. What is the boiling point of this solution? Boiling point of pure water is 100.00 C and the boiling point constant is 0.510 C
A 3.10-g sample of lead nitrate, Pb(NO3)2, molar mass = 331 g/mol, is heated in an evacuated cylinder with a volume of 2.00 L. The salt decomposes when heated, the unbalanced equation for the decomposition reaction is shown below: Pb(NO3)2(s) → PbO(s) + NO2(g) + O2(g) Assuming complete decomposition, what is the pressure in the cylinder after decomposition and cooling to a temperature of 303 K? Assume the PbO(s) takes up negligible volume.
For the chemical reaction Cal, + 2 AgNO, — 2 AgI + Ca(NO3), what mass of silver iodide is produced from 5.25 mol of calcium iodide? For the chemical reaction Cal, + 2 AgNO, 2 AgI + Ca(NO3), what mass of silver iodide is produced from 5.25 mol of calcium iodide?
A sample of calcium nitrate, Ca(NO3)2, with a formula weight of 164 g/mol. The atomic weight of Ca is 40.078 g/mol. How many grams of Ca are present in a 100 g sample of Ca(NO3)2?
6. Complete the following table. Molar Mass of Mass of Substance Mass g/mol solute, g water ag Fructose 180 100 g Urea 150 g Lithium fluoride 25.9 2.5 g 164.1 Calcium nitrate 180 g Unknown compound 2.8 g 120 g (nonelectrolyte does not ionize) Expected freezing oint OC 1.32 1.62 -0.44 molality solution 0.14 0.48
Calculate the molar mass of barium phosphite. 0 216.3 g/mol 601.9 g/mol 569.9 g/mol O 511.6 g/mol none of these
A 49.5 ml solution containing 3.03 g of Na2CO3 (molar mass = 106 g/mol) and 50.5 ml solution containing excess Al(NO3)3 (molar mass = 213 g/mol) are mixed. What is the molecular formula of the insoluble product and how much of that product is formed? Al2(CO3)3; 2.23 g formed AICO; 1133 g formed Al2(CO3)3: 6.38 g formed Nag(NO3)63.03 g formed NaNO3;2.23 g formed NaNO3: 6.38 g formed