Answer to Question #120995 in Other for Grace

Question

1. solve ONLY which is limiting and excess. Include calculations.
2NO(g) + O 2 (g) �� 2NO 2 (g)
10mol 6 mol

4HN 3 (g) + 5O 2 (g) �� 4 NO(g) + 6H 2 0(g)
40mol 20 mol

2. - solve only which is limiting and excess. Include all calculations.
CH 4 (g) + 2O 2 (g) �� CO 2 (g) + H 2 0(g)
2.00g 3.00g

2NO(g) + O 2 (g) �� 2NO 2 (g)
3.00g 4.50g

3. 3.5g of nitrogen reacts with 9.77g of hydrogen. What mass of ammonia is produced from this
union? (2)
N 2 (g) + 3H 2 (g) �� 2NH 3 (g)

4. What mass of excess is left over from this reaction? (2)
FeCl 3 (aq) + NaOH(aq) -�
45.6g 66.5g
5. Draw the pH curve for sodium hydroxide titrated with HBr(aq). Label these (3)
x axis / y axis
actual curve
give it a title
buffer zone
steve
endpoint
give indicator to use

Answer 1

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