Flask Q (volume = 1.00 x 103 cm3 ) is filled with ammonia (NH3) at 102 kPa and 300 K. Calculate the mass of ammonia in flask Q. (Gas constant R = 8.31 J K−1 mol−1 )
n = PV/RT 102 000 ×(1.00 × 10−3) / 8.31 × 300 = 𝑛 n= (4.091456077x10-2) Mass = n x 17 = 0.696g (3 sig figs only)
AR
Related Chemistry A Level answers
All answers ▸How do you know where the bonds link to form a new molecule?
The boiling point of the halogen elements increase down the group from chlorine to bromine to iodine. Please explain this trend for 3 marks.
What are the different forms of elemental carbon?
Explain what happens to a crystal of iodine when it is heated (5marks)