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5g of Oxygen combines with 37.20g of Uranium to form Uranium Oxide: What percentage (by mass) of this compound is O? and U?
As of 2007 world record for swimming 1500.0 m in a long course pool is 14 min 34.56 s. if we follow this rate then calculate how many seconds would be taken by a man to swim 0.850 miles?
Determine the bond or Which types and how many atomic orbitals of the central atom mix to form hybrid orbitals in each of the following
Determine ΔG for this reaction When A is full into a cylinder at a pressure of 9.89 atm and the system is permitted to come to equilibrium, the final pressure was 15.94 atm.? Express your answer in units of kJ/mol
Titration of an oxalate sample gave the following percentages of percent oxalate: 12.28%, 12.54%, and 12.24%. Calculate the average and the standard deviation
The protein needs to be in 1X buffer and in a total volume of 0.100 mL. You are given a 5mg/mL protein solution, a 20X sample buffer, and distilled water. How much of each wuld you mix together to make the required volume?
Choose the selection which correctly characterizes all three of the following substances in terms of whether they are polar or nonpolar: CS2 and XeF2 and GeH4 a) CS2 is polar and XeF2 is nonpolar and GeH4 is nonpolar.
1-bromobutane was added to a solution of sodium iodide in acetone. One of the possible side products of this reaction is dibutyl ether. Provide the mechanism of thus molecule.
Calculate the number of grams of glucose must be dissolved in water in order to produce 100.0 ml of a 3.700 M glucose solution (C6H12O6). Density = 2.601
The reaction below might be a suitable coupled reaction reaction to provide the energy for which of the reaction ( a-e)
A chemist dissolves 0.099 g of CuSO4 · 5 H2O in water and dilutes the solution to the mark in a 500-mL volumetric flask. A 36.1-mL sample of this solution
Which pair of solutions should conduct electrical current equally well because they contain equal numbers of ions? 0.10 M NH3 and 0.10 M NH4Cl 0.10 M HBr and 0.10 M HF 0.10 M NaCl and 0.10 M Na2SO4 0.10 M NaNO3 and 0.10 M HNO3 0.10 M HNO3 and 0.10..
An unknown gas is held in 2 separate containers with identical number of moles of gas. The volume of container 2 is 0.347 L and has a pressure of 0.315 atm. The volume of container 1 is 1.145 L. What is the pressure of the unknown gas in container..
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