Chemistry, 06.04.2020 20:36 austinmontgomep7foxp
General Chemistry II - Worksheet 28
7. Does a precipitate form when 0.100 L of 0.300 M Ca(NO3)2 is mixed with 0.200 L of 0.060
M NaF?
Answers: 3
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, 23.06.2019 07:40
Which of the following has expanded our knowledge of the universe beyond our solar system the most? a. manned space travel b. the hubble space telescope c. the pioneer and voyager missions d. the international space station
Answers: 3
General Chemistry II - Worksheet 28
7. Does a precipitate form when 0.100 L of 0.300 M Ca(NO3)...
7. Does a precipitate form when 0.100 L of 0.300 M Ca(NO3)...
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