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An excess of solid calcium fluoride is shaken with 0.100 M HCl until a saturated solution is obtained (pKa=3.17 for HCl; pKw=14.00) Assume all species behave ideally and that there is no ion-pairing.
Write the charge-balance as well as the mass-balance equations for the system (let s represent the solubility of the calcium fluoride). And solve the equilibrium problem to determine the solubility of the CaF2
a piece of metal with a mass of 151 g is placed in a 50 ml graduated cylinder. the water level rises from 20. ml to 35
What is the percent hydrogen (H) by weight of a solution containing 53.5 mL of CH3COCH3? The density of acetone is 0.788 g/mL.
How to calculate wavelength of light emitted when transition in hydrogen atom? How caclulate wavelength in nanometers?
The mass of a cube of iron is 338 g. Iron has a density of 7.87 g/cm3. What is the mass of a cube of lead that has the same dimensions?
Calculate the expected change in temperature for 4.5 g of NH4NO3 dissolved in 100.0 mL of H2O. Assume that the calorimeter absorbs no heat.
Consider the following first-order reaction: Reactant Product. This reaction has a half-life of 28.2 seconds. Calculate the rate constant.
Calculate the percent purity of a sample of impure H2C2O4*2H2O if .4006 grams of this material requires a titration with 28.62mL of a KMnO4 solution, 1.000 mL of which contains 5.980mg of KMnO4.
Determine the order of the decomposition reaction N2O5 by using the initial rate date in the table below: Experiment N2O5(g)(M) Initial rate (M/s) 1 .150 .0000860 2 .300 .000688
Hydrofluric acid in an aq solution has a molar mass of 20.01g/mol. A chemist dissovles a .2001g sample in 20.0 mL and titrates it
If a piece of rock that has a volume of 0.73 L and a mass of 1524 g, what is the density of the rock in g/mL?
A gas-filled balloon having a volume of 4.00 L at 1.2 atm and 25°C is allowed to rise to the stratosphere (about 30 km above the surface of Earth), where the temperature and pressure are -23°C and 3.00 multiplied by 10-3 atm, respectively. Calcula..
XeF6+3H2O-->___+6HF What is the missing gas oxide? I tired to input XeO3 but that was incorrect.
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