Chemistry, 17.01.2020 02:31 lilquongohard
Given that a sample of air is made up of nitrogen, oxygen, and argon in the mole fraction 0.78 n2, 0.21 o2, and 0.010 ar, what is the density of air at standard temperature and pressure?
Answers: 1
Chemistry, 21.06.2019 23:00
City a and city b had two different temperatures on a particular day. on that day, four times the temperature of city a was 8â° c more than 3 times the temperature of city b. the temperature of city a minus twice the temperature of city b was â’3â° c. what was the temperature of city a and city b on that day? city a was 5â° c, and city b was 4â° c. city a was 3â° c, and city b was â’1â° c. city a was 8â° c, and city b was â’3â° c. city a was 5â° c, and city b was â’5â° c.
Answers: 2
Chemistry, 22.06.2019 07:40
22. a flask containing 450 ml of 0.50 m h2so4 was accidentally knocked to the floor. how many grams of nahco, do you need to put on the spill to neutralize the acid according to the following equation: h2so4(aq)+2 nahcos(aq) na,so(aq) +2 h20()+2 co2(g) d) 38 g a) 2.3 g b) 9.5 g c) 19 g
Answers: 1
Given that a sample of air is made up of nitrogen, oxygen, and argon in the mole fraction 0.78 n2, 0...
Mathematics, 27.07.2019 04:20
Computers and Technology, 27.07.2019 04:20
Mathematics, 27.07.2019 04:20
Mathematics, 27.07.2019 04:20