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How does water running over a limestone grave marker change its chemical composition?
say you removed an ice cube at -10 ordmc weighing 36 g from your freezer. now you place the ice cube in a 90 g sample
Define the metabolism of on glycerol trioleate, C51 H93 O6, a common fat, produces 3.022*10^4kj of heat. Explain how many grams of the fat must be burned to increase the temperature of 50g of water from 25 degrees Celsius to 30 degrees Celsius
Problem- Calculate the ph of three solutions of maleic acid (cooh)ch=ch(cooh) a.k.a cis-butenedioic acid. Pka1= 1.75 pka2=5.84
Consider titrating 15.0ml of a .245M solution of hydazine, H2NNH2, with a .453M HCl solution. The Kb value for hydrazine is 1.3x10^-6. What volume of HCl needs to be added to the solution in oder to have a bffer system with the maximum capacity fo..
1. a coordination compound is formed from rutheniumii chlorideand ammonia. what is the correct formula for this
Which of the subsequent solvents would form the LOWER layer when the subsequent PAIRS of solvents are combined in a separatory funnel
You have 425 mL of 6.00 M nitric acid and want 100.00 mL each of 2.00 M, 1.00 M, 0.100 M, 0.0500M, 0.0100 M, and 0.00500 M nitric acid solutions. Explain how you would prepare each solution. Do you have enough nitric acid to make all of these solu..
What is the pH at the point during a titration when 30 mL of 0.200 M HCl has been added to 31 mL of 0.0500 M NH3 solution? HCl is strong acid, Kb = 1.8 × 10-5 for NH3.Answer in units of pH.
Calculate the concentration of Cu in the chloroform phase if 31.0 mL of a 0.23 M aqueous Cu solution buffered to pH 4 is equilibrated with 19.0 mL of chloroform.
The enthalpy of the graphite -----> diamond phase transition, which under 100 kbar occurs at 2000K, is +1.9 KJ/mol. Calculate the entropy change of the transition.
argon copper sodium chloride and carbon dioxide all crystallize in the face centered cubic fcc structure. how can this
Calculate the number of moles of oxygen gas produced from the completely catalyzed decomposition of 6.20 mL sample of a 3.5% solution of H2O2.
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