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A 2.634g sample containing impure CuCl2 *2H2O was heated. The sample mass after heating to drive off the water was 2.125g. What was the mass percent of CuCl2 * 2H2O in the original sample?
A mixture of 1.374g of H2 and 70.31g of Br2 is heated in a 2.00L vessel at 700K . These substances react as follows: H2(g)+Br2(g)?2HBr(g). At equilibrium the vessel is found to contain 0.566 gof H2.
the solubility of adipic acid in water is 1.5 g per 100 ml at 15?c and 0.6 g per 100 ml in ether at the same
Chlorine has two isoptopes, Cl-35 as well as Cl-37 which have masses 34.96885u and 36.96490u respectively. It's average atomic mass is 35.453u. Compute the isotopic abudance of each isotope.
Assuming electrons with quantum numbers (n,l,mt,ms), how does an electron with the quantum numbers (2,1,1,+1/2) differ from an electron with quantum numbers (2,1,-1,+1/2)?
Transition metals can combine with carbon monoxide (CO) to form compounds such as Fe_x_(CO)_y. Assume that you combine 0.125 g of nickel with CO and isolate 0.364 g of Ni(CO)_x. What is the value of x
Consider the titration of potassium acid phthalate (KHP) with NaOH. If 0.4278g KHP needed 22.86mL of NaOH to reach the phenolphthalein pink end point, explain what is the molarity of the NaOH. Explain molar mass of KHP is 204.22 g/mol.
Container A holds 712 mL of ideal gas at 2.10 atm. Container B holds 164 mL of ideal gas at 4.50 atm. If the gases are allowed to mix together, what is the resulting pressure
A stainless steel tank contains 2% fat milk (SG = 1.030). A pressure gauge at the bottom of the tank monitors the gauge pressure of the vessel, and from that reading, the height of the milk within the tank can be determined.
What volume of gas, measured at 690 torr and 40 degrees celcius, is required to form 29g of NaCl?
A sweet solution, 24.0% by mass fructose, C6H12O6, has a density of 1.10 g/mL. Find out the molarity of the solution. Presume you have a 1.00 liter solution.
there are some given substances likenbsp kohnabr crpo4 rbcl pboh2 lino3nbspnbsp you just need to find out which
Pretend you run a reaction and your theoretical yield is 5.25 grams, but you isolate 5.50 grams. What is the most likely reason for the excess weight
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