Chemistry
Chemistry, 28.08.2019 23:40, ggpro4life3000

Why was ethanol used during the final washes of the recovered copper product?

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Chemistry, 17.07.2019 21:20, tadopson2003
Amix of alcohol containing 53.3%wt methanol (m), 24.8%wt ethanol (e), 17.1%wt propanol (p), and 4.8%wt butanol (b) is being separated using two distillation columns. the mix is fed to the first distillation column at 32000 kg/h. the top product stream of this column contains only methanol and ethanol, and the bottom stream doesn't have any methanol. also, 98% of ethanol in the feed is recovered in the top product stream. a) find the composition of and flowrates of top and bottom product streams. b) find the flowrate of the reflux stream if reflux ratio1.5 (reflux ratio is the flowrate of the reflux stream divided by the flowrate of the top product)
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Chemistry, 27.09.2019 01:00, xojade
When heated strongly, copper metal incorporates oxygen to form one of the copper oxides from the last problem. in one experiment, a crucible weighing 88.00 g was loaded with 10.00 g of copper metal. after 20 minutes of strong heating, the total mass was 100.52 g. how many moles of copper atoms are present in the final product?
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Chemistry, 27.09.2019 16:30, kaiya789
Asample of copper wire with a mass of 1.659 g is heated with excess powdered sulfur until the copper has combined with the sulfur, and all the extra sulfur has been burned off. the final product (a sulfide of copper ) has a mass of 2.080 g. calculate the empirical formula of the product, and name it.
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Business, 20.10.2019 18:20, clarkster112679
When the recovered copper product was washed repeatedly with water, what compounds were removed during those washes?
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