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Pure copper may be produced by the reaction of copper(I) sulfide with oxygen gas as follows: Cu2(s) + O2(g) ? 2Cu(s) + SO2(g) If 0.330 kg of copper(I) sulfide reacts with excess oxygen, what mass of copper metal may be produced
Which one of the following does not react with aqueous sodium hydroxide?
1.0 liter of a buffer solution that is 0.10 M in CH3COOH and 0.10 M in NaCH3COO, how will the pH of the solution change?
The concentration of alkaline phosphate in the stock solution used in the experiment was .25mg protein/mL. Calculate the activity of the enzyme at Vmax as umole substrate hydrolyzed per minute per mg of enzyme protein.
the gas sample weighs 2.62grams then computes the molecular weight and determines the identity of the gas.
How many grams of Na3PO4 will be needed to produce 500ml of a solution that has a concentration of Na ions of 0.600M
What would be the structure and name of the open chain hydroxyl/carbonyl compund from which the above hemiacetal might form
what is the volume of a block with the dimensions 95.6cm in length, 43.7cm wide, and 10.2cm in height?
How much water must be added to 488 mL of 0.223 M HCl to produce a 0.134 M solution?
A solution of Na2CO3 is added dropwise to a solution that contains 1.14Ã-10âˆ'2 M Fe and 1.53Ã-10âˆ'2 M Cd . What concentration of CO3 is need to initiate precipitation?
Using ethanol as the source if all carbon atoms, outline multistep synthesis
When 20 mL of a 315 mL stock solution containing 2.2 M AlCl3 is diluted to 81 mL, what is the concentration of Al3+ in the new solution.
A mixture of KBr and NaBr weighing 0.560 gm was treated with aqueous Ag+ and all the bromide ion was recovered as 0.970 gm of pure AgBr. What was the fraction by weight of Kbr in the original sample?
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