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1. How many grams of Mg must react with HCl in order to produce 40.0 ml of hydrogen gas at 22 degrees celsius and 1.02 bar?
2. If the magnesium ribbon weighs 1.83mg/mm, how many mm of the ribbon will you require?
Copper sulfate (CuSO4) forms a pentahydrate. Calculate the mass of this compound that contains exactly one mole of copper ions
Obtain from a reference work the solubility of silver acetate at 20 degree C. Usually this will be reported in units of grams per 100 mL of water
calculate the percentage of empty space in 1 mol of water at 25C. Obtain the density from the experiment " Some Measurements of Mass and Volume." The volume of a molecule of water can be taken as the sum of the volumes of the two hydrogen atoms.
A solution of potassium chromate is prepared at pH 7.72. Calculate the fraction of the total chromate in this solution that is present as the chromate ion CrO42-.
Calculate the amount of heat involved in the conversion of 25.00 g of water at 100 C to steam at 100C. Use Hess's law to calculate the amount of heat involved in converting 25.00 g of liquid water at 25 C to steam at 100C
Consider a gas at 1.00 atm in a 5.00 L container at 20 degrees celsius. What pressure does the gas exert when transferred to a volume of 2.77 L at 43 degrees celsius?
What is the concentrationof lead ions and sulfide ions in a saturated solution of lead sulfide (PbS) soltution at 25 degree celcius(Ksp=3.0x10-28).
the oxygen gas emitted by an aquatic plant was collected over water at a temerature of 293 k and a total pressure of 755.2 mmhg.
Explain what observed rotation is expected when a 1.14 M solution of (R)-2-butanol is mixed with an equal volume of a 0.570 M solution of racemic 2-butanol, as well as the resulting solution is analyzed in a sample container that is 1 dm long
Using data from Appendix D in the textbook, calculate [OH?] and pH for each of the following solutions.
At 25°C, you take 100 mg of Na2CO3 as well as 100 mg of CaCl2; place them into a 1 L volumetric flask as well as add water at a pH=9.0. Will CaCO3 precipitate. Presume closed system with a constant pH
Consider the controlled potential electrolysis of an Zn2+ solution using the following electrochemical cell set to -1.207 V: SSCE || Zn2+(aq)| Zn(s) 3.440 Coulombs of charge is collected in the electrolysis of a 50.00 ml solution.
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