Chemistry, 31.12.2021 14:00 bennettaly2452
When 13.5 grams of methane (ch4) burns in 40.0 grams of oxygen, how many grams of water are formed?
Answers: 1
Chemistry, 22.06.2019 01:20
1. suppose a reaction mixture, when diluted with water, afforded 300 ml of an aqueous solution of 30 g of the reaction product malononitrile [ch2(cn)2], which is to be isolated by extraction with ether. the solubility of malononitrile in ether at room temperature is 20.0 g/100 ml, and in water is 13.3 g/100 ml. what weight of malononitrile would be recovered by extraction with (a) three 100-ml portions of ether and (b) one 300-ml portion of ether? suggestion: for each extraction, let x equal the weight extracted into the ether layer. in part (a), the concentration in the ether layer is x/100 and in the water layer is (30 x)/300; the ratio of these quantities is equal to k 20/13.3.
Answers: 2
Chemistry, 22.06.2019 10:40
Which buffer would be better able to hold a steady ph on the addition of strong acid, buffer 1 or buffer 2? explain. buffer 1: a solution containing 0.10 m nh4cl and 1 m nh3. buffer 2: a solution containing 1 m nh4cl and 0.10 m nh3
Answers: 1
Chemistry, 22.06.2019 19:30
Which one of the following substances would be the most soluble in ccl4? na2so4 h2o ch3ch2ch2ch2oh c4h10 hi
Answers: 1
When 13.5 grams of methane (ch4) burns in 40.0 grams of oxygen, how many grams of water are formed?...
Biology, 19.07.2019 08:10
History, 19.07.2019 08:10
Biology, 19.07.2019 08:10
Business, 19.07.2019 08:10
Mathematics, 19.07.2019 08:20
Physics, 19.07.2019 08:20
History, 19.07.2019 08:20
Social Studies, 19.07.2019 08:20
History, 19.07.2019 08:20
Mathematics, 19.07.2019 08:20