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Calcium chloride is quite soluble, while the solubility of calcium fluoride, CaF2, is on 3.9 x 10-11. A waste stream of 1.00 x 10-3 M HCl is injected into a formation of limestone, CaCO3, where is comes to equilibrium. Provide the chemical reaction that occurs and compute the hardness and alkalinity of the water at equilibrium. Do the similar for a waste stream of 1.00 x 10-3 M HF.
normal glucose levels in the blood are from 70 to 10 mg glucose per 100 mL of blood. If the level falls too low, there can be brain damage.
How many atoms of iron would be needed to react completely with 36 molecules of oxygen. How many molecules of oxygen would be needed to react completely 16 atoms of iron
Protein Quantification :why did you choose one standard curve over the other for analysis of your unknown?
Unknown compound A (C8H12) is reacted with H2 (excess) in the presence of a palladium catalyst forming compound B (C8H16). In addition when compound A is reacted with O3 followed by zinc and acetic acid the following two compounds are formed
What is the change in internal energy (in J) of a system that absorbs 0.330 kJ of heat from its surrounding and has 0.586 kcal of work done on it in scientific notation.
how much energy in kilojoules is required to convert 255 of diethyl ether at its boiling point from liquid to vapor if
When 5.00 × 1022 molecules of ammonia react with 4.00 × 1022 molecules of oxygen, how many grams of nitrogen gas are produced? 4NH3(g) + 3O2(g) → 2N2(g) + 6H2O(g)
sulfur is used in the production of vulcanized rubber detergents dyes pharmaceuticals insecticides and many other
It is determined that 3.75 x 10^-4g of a contaminant is present in 3750g of a particular solution. What is the concentration of contaminant in ppm (m/m)?
The density of acetonitrile (CH3CN) is 0.786g/ml, and the density of methanol (CH3OH) is 0.791g/mL . A solution is made by dissolving 21.5 mL (CH3OH) in 98.9 mL CH3CN. a) What is the mole fraction of methanol in the solution
A proton in a linear accelerator has a de Broglie wavelength of 144 rm pm. what is the speed of the proton?
A 1.013-g sample of ZnSO4xH2O is dissolved in an aqueous solution of BaCl2. The pure BaSO4 precipitate is filtered out of solution, dried, and its mass is determined to be 0.9400 g. What is the value of x in ZnSO4xH2O?
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