Chemistry, 13.01.2021 08:00 juanitarodriguez
Describe the procedure for diluting the .10 M solution to a concentration of .020 M using distilled water, a 100mL volumetric flask, and a pipet or burst
Answers: 2
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 18:10
Consider the following reaction at equilibrium: c(s)+h2o(g)⇌co(g)+h2(g) predict whether the reaction will shift left, shift right, or remain unchanged upon each of the following disturbances. a) c is added to the reaction mixture. b) h2ois condensed and removed from the reaction mixture c) co is added to the reaction mixture d) h2 is removed from the reaction mixture.
Answers: 3
Chemistry, 22.06.2019 22:30
What must be in balance for temperatures to remain constant?
Answers: 1
Chemistry, 22.06.2019 23:10
Using the periodic table, complete the following. element: hydrogen symbol: h₂ molecular weight: g mass of one mole: g/mol
Answers: 3
Describe the procedure for diluting the .10 M solution to a concentration of .020 M using distilled...
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