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What are the atoms of the elements which have same number of neutrons called?
carried through the analysis, the error in determining the analyte is +6.3%. (a) Determine the appartent recovery for the analyte if R1=0. (b) deter,ome the apparent recovery for the interferent if Ra=1.
a second reaction has a standard Gibbs free energy of -55 kJ/mol. What is the ratio of their equilibrium constants at 300 K?
A student wants to prepare a dilute solution of iron (III) solution, . The student is provided with a stock solution of 0.800 +/- 0.001 M and a 100.00 +/- 0.008 mL volume trick flask since the experiment trquires about 80 mL of the dilute iron (II..
A solution contains .294 M solution sodium cyanide and .0919 M hydrocyanic acid. What is the pH of this solution.
10.0 moles of nh3 and 10.0 moles of h2 are introduced into a 2.00 l flask. at equilibrium 3.0 moles of nh3 gas remain.
What is the percent hydrogen (H) by weight of a solution containing 53.5mL of CH3COCH3? The density of acetone is 0.788 g/mL
An 11.2 liter flask at 0 degrees C contains one mole of oxygen, two moles of nitrogen and three moles of helium. What is the pressure in the flask
Explain which of the subsequent reagents would work best to separate Ba(2+) and Ca(2+) from a solution that is 0.050 M in each ion. Explain. (a) 0.10 M NaCl (b) 0.05 M Na2SO4 (c) 0.001 M NaOH (d) 0.50 M Na2CO3
When iron is dissolved in an oxidizing agent, such as sulfuric acid, Fe(II) or Fe(III) will be formed?
the calorimeter above that contains 20.00g of water at 23.15 degrees C, what will the final temp of the calorimeter be when the reaction gose to completion
Explain why, in the 1H NMR spectrum of the product, the peak at 2.40 ppm has three times the integral value of all of the other peaks in the spectrum
customers complain that the plants they buy look "different" when they get them home. The electric bill to run the store is excessive.
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