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0.700 g of KHT was dissolved in water and titrated utilizing 11.57mL of an NaOH solution. Find out the molarity of the NaOH solution?
what is the wavelength of the photons emitted by hydrogen atoms when they undergo n=3 to n=2 transitions. Calculate in nanometers. In which region of the electromagnetic spectrum does this radiation occur? A) visible B) Ultraviolet C) Microwaves D..
dry-cleaning solvent (molecular weight = 146.99 g/mol) that contains C, H, and Cl is suspected to be a cancer-causing agent. When a 0.133 g sample was studied by combustion analysis, 0.239 g of CO2 and 0.0323 g of H2O formed. How many moles of eac..
An element has three naturally occurring isotopes, calculate the percent abundance and the atomic mass
Chlorides are at the corners of a primitive cube with a cesium in the middle. Using the Cs atom as the origin calculate the first three terms of the Madelung constant for a CsCl crystal. Recall that M is cal calculated in terms of the ionic "bond ..
which one of the following is chiral? a. 1,1-Dibromopropane b. 1,2-Dibromopropane c. 1,3-Dibromopropane d. 2,2-Dibromopropane e. 2-Bromo-2-chloropropane
Based on the amount of water you used during the recrystallization ( 36 ml ) estimate the amount of salicylic acid that was lost as a result of being dissolved in the filtrate.
You can heat it with a charcoal fire. The heat of combustion of graphite (MW = 12 g/mol) is -393 kJ mol-1. How many grams of charcoal will have to burn to supply the heat
Compute the composition of the crystals and the yield of the process. Also determine the composition of the mother liquor?
1.45 g sample of an iron ore is dissolved in acid and the iron obtained is fe2 aq. to titrate the solution 21.6 ml of
Enter the molecular, ionic and net ionic equation for the following reactioins. I am having trouble figuring out when to make the water molecule and when not to.
Molecular equation reaction for copper sulfate penta-hydrate with heat (state of reactants and products must be shown) then when the anhydrous copper sulfates with water
suppose the condenser operates as a total condenser at 40 degrees, the production rate of the overhead product is 75kmol/h. The ratio of reflux and overhead product is 1.5:1.
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