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If the half reaction at an electrode is the reduction of zinc fromzinc 2+ ions, how many grams of zinc would be produced from passinga current of 0.5 amps for 2 hours
Propose a structure for an amine of formula C4H9N, which does not liberate a gas when treated with NaNO2 and HCl, and has IR absorptions at 917 cm-1, 990 cm-1, and 1640 cm-1,
What are the origins of these signals? Why does the spectrum contain two other signals of roughly equal height? What are the origins of these signals
What is the overall mass-transfer coefficient for oxygen (O2) from the atmosphere to the river (b) Which part of the transfer mechanism controls the overall rate
draw a sheme o both reactions inlcuding structures and names of all possible products of monosubustitution only. Choose one reaction and provide appropriate mechanism including all resonance strucutres.
Which of the following enzymes is used in both glycolysis and gluconeogenesis? A. hexokinase B. pyruvate carboxylase C. malate dehydrogenase D. triose phosphate isomerase E. isocitrate dehydrogenase
When a sample of H2S(g) (9.811 mol) is placed in 180.0 L reaction vessel at 724.0 K and allowed to come to equilibrium the mixture contains 0.01627 mol/L of S2(g). What is the equilibrium concentration (mol/L) of H2S(g)? 2H2S(g) = S2(g)+2H2(g)
If 3.70 mol of ethane, C2H6, undergo combustion according to the unbalanced equation given below, how many moles of oxygen are required? C2H6 + O2-> CO2 + H2O
The attractive force between neighboring dipoles. the force that arises because of the large differences in electronegativities in the N-H bonds
sample of unknown HCL solution reacts completely with Na2CO3 to form 15.1g CO2, What was the concentration of the HCL solution?
a certain gas expands in volume from 1.75 to 8.32l ataconstant temperature. calculate the work dine in joules by the
1 g of magnesium sulfate is mixed with 1 l of distilled water. magnesium sulfatre is 20.2 magnesium by mass. what is
an empty vial has a mass of 67.77 g. if the vial has a mass of 244.56 g when completely filled with liquid carbon
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