Calculate the mass in grams of calcium nitrate ?

To calculate the mass of calcium nitrate, we first need to know the chemical formula of calcium nitrate, which is Ca(NO3)2.

Next, we need to determine the molar mass of calcium nitrate by adding up the atomic masses of each element in the compound:

Calcium (Ca) = 40.08 g/mol
Nitrogen (N) = 14.01 g/mol
Oxygen (O) = 16.00 g/mol

Molar mass of Ca(NO3)2 = 40.08 + (14.01 x 2) + (16.00 x 6) = 164.09 g/mol

Now, we can calculate the mass of calcium nitrate in grams by using the formula:

Mass = Number of moles x Molar mass

Let's say we have 0.5 moles of calcium nitrate:

Mass = 0.5 moles x 164.09 g/mol = 82.045 grams

Therefore, the mass of 0.5 moles of calcium nitrate is 82.045 grams.

Step 1: Write the balanced chemical equation

CaCO3(s) + 2 HNO3(aq) → Ca(NO3)2(aq) + H2O(l) + CO2(g)

Step 2: Calculate the moles of calcium nitrate

Assuming you have a certain amount of calcium carbonate (CaCO3) and excess nitric acid (HNO3), the limiting reactant will determine the amount of calcium nitrate produced.

For example, if you have 1 mole of CaCO3, the equation predicts that you will get:

1 mole CaCO3 × (1 mole Ca(NO3)2 / 1 mole CaCO3) = 1 mole Ca(NO3)2

Step 3: Convert moles to grams

To convert moles to grams, multiply the number of moles by the molar mass of calcium nitrate.

1 mole Ca(NO3)2 × (164.09 g/mol) = 164.09 g Ca(NO3)2

Therefore, if you started with 1 mole of CaCO3, you would produce 164.09 grams of calcium nitrate.

Note: The actual mass of calcium nitrate obtained may vary depending on the efficiency of the reaction and any impurities present.