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16. Type the correct answer on the line below. Given :CaC2 + N2 CaCN2 5 points
+ C In this chemical reaction, how many grams of N2 must be consumed
to produce 265 grams of CaCN2? Express your answer to three significant
figures. The reaction requires grams of N2.
Your answer
I need help PLEAS

Respuesta :

Neetoo

Answer:

Mass = 80.6 g

Explanation:

Given data:

Mass of Nâ‚‚ consumed = ?

Mass of CaCNâ‚‚ formed = 265 g

Solution:

Chemical equation:

CaC₂ + N₂      →       CaCN₂ + C

Number of moles of CaCNâ‚‚:

Number of moles = mass/molar mass

Number of moles = 265 g/ 92.11 g/mol

Number of moles = 2.88 mol

Now we will compare the moles of CaCNâ‚‚ and Nâ‚‚.

                               CaCN₂            :            N₂

                                   1                   :              1

                                  2.88              :            2.88

Mass of Nâ‚‚:

Mass = number of moles × molar mass

Mass = 2.88 mol × 28 g/mol

Mass = 80.6 g

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