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Explain the highest possible oxidation state for the halogens is +7 and the lowest possible is -1. Which of the following couldn't disproportionate?
a) BrO-b) Cl2c) Br-d) HClO4e) IO-
250-ml erlenmeyer flask : Contains 20.0 g sucrose, 2.0 g yeast, 175 ml DI water, and 20.0ml Pasteur's salts. The flask is fit with a one-hole rubber stopper with a glass tube leading to a beaker. Determine theorectical yield in grams and milliters ..
how many joules of heat are needed to raise the temperature of 10.0g of aluminum from 22oc to 55oc if thespecific heat
A sample contains Ba3(PO4)2, CoS, AgCl, NH4Cl, and ZnS. Identify the precipitate after the addition of 6 M HCl, then H2S and 0.2 M HCl.
The concentration of the HCl solution is 0.1016 M HCl. What volume of 0.1338 M Ba(OH)2 would neutralize 50.00 mL of the HCl solution standardized in the situation above.
The activity coefficients for acetic acid and the acetate ion are 1.000 and 0.775, respectively, in a solution with an ionic strength of 0.10 M.
Hard water often contains dissolved Ca2+ and Mg2+ ions. One way to soften water is to add phosphates. The phosphate ion forms insoluble precipitates with calcium and magnesium ions
What is the difference in volume (in mL) between the water vapor and liquid water? (Assume the density of liquid water is 1.0 g/mL.) C. Why is it dangerous to heat a closed container of liquid to its boiling point?
Consider the reaction below. What volume of CO2 gas will be produced by the reaction of 100 gram of CaCO3 at 25degC and P=10atm? CaCO3(s) + 2 HCl(l) > CaCl2(aq) + CO2(g) + H2O(l)
A 0.551 L solution of 1.51 M oxalic acid (Ka1= 6.5e-2 and Ka2 = 6.1e-5) is titrated with 1.85 M KOH. What will the pH of the solution be when 0.8140 L of the KOH has been added
5000 joules of energy are added to 108 grams of silver, Ag, at 20°C. What is the final temperature of the metal? (the specific heat of silver is 0.235)
A sample of 1.00 g of lead (II) nitrate is mixed with 130 mL of 0.102 M sodium sulfate solution. Write a balanced chemical equation with phases
How much heat is absorbed when 28.3g H2O(s) at 0 degrees celcuis is converted to liquid at 0 degrees celcius
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