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Problem- If you wanted to make 1.00 grams of KCl how many grams of K and how many grams of Cl would you need?
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The oxygen atom (with its 2s orbital) forms a s bond with one of the three sp2 hybrid orbitals of the carbon atom; the two hydrogen atoms (with their 1s orbitals) each form a s bond with one of the three sp2 hybrid orbitals of the carbon atom.
What is the mass of 67.0 mL of ethanol. The density of ethanol at room temperature = 0.789g/mL
What volumes of .200 M HCOOH and 2.00 M NaOH would make 300 mL of a buffer with the pH of one made from 475 mL of .200 M benzoic acid and 25 mL of 2.00 M NaOH?
A solution of H2SO4 and KI is then added to conver the MnO2 to MN^2+, and the iodide is converted to I2. The I2 is then titrated with standardized Na2S2O3. Calculate the amount of O2 in 25.0mL of water if the titration requires 2.45ml of 0.0112 M N..
What is the pH for the solution made from 11.10 mL of 0.278 M HCl solution mixed with 70.90 mL of 0.1300 M ammonia solution ? Note that the pKa for NH4+ is 9.241
The aqueous solubility of CO2 at 20 degrees Celsius and 1.00 atm is equivalent to 87.8 mL of CO2(g), measured at STP, per 100 mL of water. What is the Molarity of CO2, in water, that is at 20 degrees Celsius and saturated with air at 1.00 atm. The..
Use the tabulated half-cell potentials below to calculate the equilibrium constant (K) for the following balanced redox reaction at 25°C.
Acid #1 has 1700 mg of sodium bicarbonate, antacid #2 has 500 mg of calcium carbonate. Which tablet is capable of reducing the most acid and why?
The solubility product for ZnOH2 is 3.0x10^- 16. The formation constant for the hydroxo complex, Zn(OH)4 ^2-, is 4.6x 10^17. A)What is the minimum concentration of OH - required to dissolve 1.5×10-2 mol of Zn(OH)2 in a liter of solution
In VSEPR (Valence shell electron pair repulsion) theory, what information about a central atom do you need in order to predict the shape of a molecule
The thermocouple is then placed in boiling toluene at the same pressure and provides an output of 12.59 mA.
a rectangular block has dimensions 2.9 cm . 3.5 cm . 10.0 cm. the mass of the block is 615.0 g. what are the volume and
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