Question

oh 3 the reaction of calcium cyanamide(CaCN,) with water to form calcium carbonate and ammonia gas 9. Nitrogen trichloride gas reacts with water to form ammonia and hypochlorous acid, the main component of bleach. a. write a balanced equation for this reaction. b. how many moles of ammonia are produced from 275 g of water? c. how many grams of nitrogen trichloride are required to produced 14.8 g of ammonia? d. What is the limiting reactant when 3.2 moles H,O is reacted with 2.0 moles of nitrogen trichloride? e. What amount of excess reactant is unreacted? Bonus: 10pts Oil spreads on water to form a thin film about 150 nm thick. How many square kilometers of ocean will be covered by the slick formed when one barrel of oil is spilled (1 barrel = 31.5 U.S. gallons) TL am contains 9 questions

#9 and bonus please and thank you.

Answer 1

According to HOMEWORKLIB RULES we have to answer only first one problem

stoichiometry of balance reaction, indicates the relationship between reactant and products of any chemical reaction.

a.

NCl₃ + 3 H₂O ----- > NH₃ + 3 HOCl

b.

given that wate r= 275 g

number o fmole s= amount in g / molar mass

= 275 g/ 18.02 g/ mole

= 15.3moles H2O

15.3 Mole H2O * 1 mole NH3 /3 mole H2O

= 5.1 mole NH3

c.

14.8 g NH3

Number of mole s= 14.8 g/ 17.031 g/mol

=0.869 mole NH3

NCl₃ + 3 H₂O ----- > NH₃ + 3 HOCl

0.869 mole NH3 *1 mole NCl3 /1 mole NH3

= 0.869 mole NCl3

Amount in g = number of mole * molar mass

= 0.869 mole NCl3*120.365 g/mol

= 104.6 g NCl3

d.

3. 2 mole H2O

2.0 mole NCl3

NCl₃ + 3 H₂O ----- > NH₃ + 3 HOCl

2.0 mole NCl3 *3 mole H2O /1 mole NCl3

= 6.0 mole H2O

3. 2 mole H2O *1 mole NCl3 / 3 mole H2O

= 1.07 Mole NCl3

The limiting agent has following properties:

1. It completely reacted in the reaction.
2. It determines the amount of the product in mole.

Thus H2O is a limiting agent

e.

excess reagent is NCl3 which is = 2.0 mole NCl3 -1.07 Mole NCl3

= 0.93 Mole NCl3

Amount in g = number of mole * molar mass

= 0.93 mole NCl3*120.365 g/mol

= 111.94 g NCl3