A) Ammonia and nitrogen monoxide react together according to the following
equation:
4NH3(g) + 6NO (9) - 5N2 (9) + 6H20 (g)
50.0 dm3 of ammonia is reacted with 50.0 dm3 of nitrogen monoxide at 150.0 °C and
100 kPa. Identify the excess reagent and determine the volume of nitrogen produced.
(2)
b)
Determine the volume of excess gas and hence total volume of gas after the reaction
has finished.
(1)
c)
What mass of nitrogen is produced in the reaction? Express your answer to an
appropriate number of significant figures.
(2)

Anthracite is so hard and pure it is also referred to as a renewable resource metamorphic rock hot bituminous coal dirty fuel

Answer asap need it by wednesday morning carry out the following calculations on ph and ka of from data. i. calculate the ph of 0.02m hcl ii. calculate the ph of 0.036m naoh iii. calculate the ph of 0.36m ca(oh)2 iv. calculate the ph of 0.16m ch3cooh which has ka = 1.74 x 10-5 mol dm-3 v. calculate ka for weak acid ha which has a ph of 3.65 at 0.30m concentration vi. calculate the ka of a solution made by mixing 15.0 cm3 0.2m ha and 60.0 cm3 0.31m a-. [ph= 3.80] vii. calculate the ph of a solution made by mixing 15.0 cm3 0.1m naoh and 35.0 cm3 0.2m hcooh. [ka = 1.82 x 10-4 m]

Glucose (c6h12o6) is an important biological molecule. (round the answer to nearest hundredth.) what is the percent by mass of carbon in glucose?