# Chemistry

What mass of calcium nitrate contain 2.8g nitrogen.

1. 👍
2. 👎
3. 👁
1. the molecular weight of Ca(NO3)2 is 164g
Of that, 28g is nitrogen

so, 2.8g nitrogen means 16.4g Ca(NO3)2

1. 👍
2. 👎

## Similar Questions

1. ### chemistry

the recommended daily allowance of calcium is 1.2 g. calcium carbonate contains 12.0 % calcium by mass. how many grams of calcium carbonate are needed to provide the rda of calcium

2. ### Chemistry

The average atomic mass of nitrogen is 14.01 u. Nitrogen exists naturally as nitrogen-14 (mass = 14.00 u) and nitrogen-15 (mass = 15.00 u). What can you infer about the isotopic abundances for nitrogen? PLEASE EXPLAIN THE ANSWER

3. ### chemistry

Aluminum nitrate and ammonium chloride react to form alluminum chloride, nitrogen, and water. what mass of aluminum chloride is present after 43.0 g of aluminum nitrate and 43.0 g ammonium chloride have reacted completely? Please

4. ### Chemistry

A sample of calcium fluoride with a mass of 15.0 g contains 8.40 g of calcium. Assuming that the sample is pure calcium fluoride, how much calcium would be present in a 30.0 g sample? My answer: 16.8 g Ca Based on your answer and

1. ### science

what mass of silver(1)nitrate is needed to prepare 100cm3 of silver(1)nitrate solution,concentration 0.2mol/dm3? the mass of one mole of silver nitrate is 170g please help me with this question

2. ### Calabasas HS

A 46.2-mL, 0.568 M calcium nitrate [Ca(NO3)2] solution is mixed with 80.5 mL of1.396 M calcium nitrate solution. calculate the concentration of the final solution

3. ### chemistry

Copper(II) nitrate decomposes upon heating to form copper(II) oxide, nitrogen dioxide gas, and oxygen gas. If 1.0 mole of copper(II) nitrate decomposes, how many moles of nitrogen dioxide would be formed?

4. ### Chemistry

Ca+N-->Ca3N2 -What is limiting reagent? -Mass of calcium nitride formed when 50.0g of calcium reacts with 50.0g of Nitrogen? -Excess? CAN SOMEONE DOUBLE CHECK MY ANSWERS: Calcium is limiting reagent. Mass of Ca3N2: 68.4g Ca3N2

1. ### Chemistry

Calcium nitrate and ammoonium fluoride react to form calcium fluoride, dinitrogenmonoxide and water vapor. What mass of each substance is present after 28.42 g of calcium nitrate and 29.60 g of ammonium fluoride react completely?

2. ### stiochemetry

what mass of silver nitrate is needed to prepare 100cm3 of silver nitrate solution, concentration 0.2mol/dm3? the mass of one mole of silver nitrate is 170g

3. ### chemistry

When calcium is allowed to react with nitrogen, N2, calcium nitride is formed, as shown in the following balanced chemical equation: 3Ca + N2 mc006-1.jpg Ca3N2 If 24.0 g of calcium and 12.0 g of nitrogen are available for this

4. ### chemistry

Nitric Acid + Calcium hydroxide ---> calcium nitrate + water I wrote it as : NO3 + Ca(OH)2 ---> Ca(NO3)2 + H20 Did I write it correctly? Where should I put my charges? I also have big time trouble balancing this one.