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The salts of calcium sulfate, magnesium carbonate, lead (II) bromide, calcium chloride and silver nitrate are all added to a beaker. Pure water is added and the mixture is stirred well as well as allowed to settle. Four solids are now present in the beaker. List their formulas
Calculate the volume of C2H2 that is collected over water at 23 Celcius by reaction of 0.751 g of CaC2 if the total pressure of the gas is 740 torr. (The vapor pressure of water is 21.07 torr .)
for nh4br dissolving in water deltahsoln is17kjmol. write an equation that represents the solubility equilibrium for
The procedure uses 3.0M NaOH. However, the student notices that the only solution of NaOH is concentrated (19M ) NaOH solution. How many mL of water are needed to make 500mL of a 3.0M NaOH
Calculate the reaction's rate constant (k) at this temperature. Calculate the reaction's half-life (t1/2) at this temperature
NaOH + CO2 - >Na2CO3 + H2O. If the average human body discharges 716 g of CO2 per day, how much NaOH is needed each day for each person in the spacecraft? Answer in units of mol.
What is the minimum pressure in kPa that must be applied at 25 °C to obtain pure water by reverse osmosis from water that is 0.154 M in sodium chloride and 0.030 M in magnesium sulfate. Assume complete dissociation for electrolytes.
how do you convert the wave functions for the 3s3p3d orbitals of hydrogen so that they can be entered into excel? in
We are enabling the trans to cis isomerization of E-1,2,-bidenzoylethylene by irradiating the alkene with light. Why does light allow for the isomerization. What does light do to the alkene.
calculate the amount of heat necessary to raise the temperature of 53.4 grams of ice at -50.0 degrees celsius to water
The Ksp of calcium hydroxide, Ca(OH)2, is 5.02 × 10-6. Calculate the solubility of this compound in g/L.
1 calculate the molar mass for each of the following.a calcium sulfide casb calcium sulfate caso4c glycerin c3h5oh32
Suppose that you designed a spacecraft to work by photon pressure. The sail was a completely absorbing fabric of area 1.0 km^2 and you directed a red laser beam of wavelength 650 nm on it from a base on the moon. What is the (a) force, (b) pressur..
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