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Find out [H3O] and [HF] in 0.500M HF. Then find out these concentrations in a solution that is 0.100M HCL and 0.500 HF
Nickel has a face-centered cubic unit cell. The density of nickel is 6.84 g/cm3. Calculate a value for the atomic radius of nickel. in picometers
which one of the following represents the best method for the preparation of 3-chloro-3 ethylpentane?
56.0 mL of a 1.20 M solution is diluted to a volume of 248 mL. A 124-mL portion of that solution is diluted using 157 mL of water. What is the final concentration?
The flue gases produced are cooled from 1000 C at the outlet of the furnace to 600 C in a superheater. Saturated steam at 80 bar enters the superheater and leaves with a 100 C superheat. What quantity of superheated steam is generated in the boile..
A reagent is sold a s a solution that is 60% by mass. What is the molality of the solution if the molar mass of the reagent is 90.0g
The NaOH catalyst solution is prepared by dissolving 0.4 g of NaOH in 4.0 mL of water then adding 3.0 mL of 95% ethanol. how many moles of NaOH, mL of water and ml of ethanol in 3 mL?
The gas above the top liquid is at an absolute pressure of Pg. Furthermore, the densities and heights of liquid 1 and liquid 2 are P1 and P2 , and L1 and L2 , respectively. In terms of these given symbols, waht is the absolute pressure at the bott..
Consider the following equation: CO + 2 H2 → CH3OH ?H rxn = -128 kJ Calculate the amount of heat (in kJ) associated with complete reaction of 8.08 g H2.
Lead is a toxic metal that affects the central nervous system. A Pb contaminated water sample contains 0.0012 % Pb by mass. Q) How much of the water (in mL) contains 160mg of P}? (Assume a density of 1.0 mg/mL)
Classify the following bonds as ionic, polar covalent, or nonpolar covalent. Show your calculations.
Explain is the mass percent of a solution if 42.9 grams of aspirin is dissolved into 175mL of ethanol. Density of ethanol is 0.789 g/mL
A researcher conducting a large-scale experiment dissolved 750.0 g of calcium chloride in a tank. The resulting solution was found to have [Cl-] = 0.026 M. If the tank was 0.75 m wide and 1.20 m long, how deep was the tank
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