Chemistry, 30.05.2020 21:00, kellersweeney
Wine goes bad soon after opening because the ethanol CH3CH2OH dissolved in it reacts with oxygen O2 gas to form water and aqueous acetic acid CH3COOH, the main ingredient in vinegar. Calculate the moles of ethanol needed to produce 0.095mol of water. Be sure your answer has a unit symbol, if necessary, and round it to 2 significant digits.
Answers: 2
Chemistry, 21.06.2019 20:30, AvreeanaS1379
The first element on the periodic table of elements is carbon. a. true b. false
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Chemistry, 21.06.2019 21:00, Gghbhgy4809
What pressure will be exerted by 0.675 moles of a gas at 25*c if it is in a 0.750-l container?
Answers: 1
Chemistry, 22.06.2019 01:20, whrjegt4jrnfdvj
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
Wine goes bad soon after opening because the ethanol CH3CH2OH dissolved in it reacts with oxygen O2...
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