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Which of the following substances are reasonably soluble in water?
KOH
AgC2H3O2
NiCl2
ZnS
Na2CrO4
62.8 mL of air is collected over water at 24 degrees celsius and 733 mm Hg pressure. find the volume of the dry air at STP
At 450 K the rate constant is 15.4 atm-1s-1. How much time (in s) is needed for NOCl originally at a partial pressure of 46 torr to decay to 25.8 torr?
A 0.100 M solution of a weak acid, HX, has a pH of 2.110. What is the value of Ka for HX?
Which of the following statements is true? a. The critical temperature must be reached to change liquid to gas. b. To melt a solid at constant pressure, the temperature must be above the triple point.
determine the freezing point of this solution If 18.0 grams of a nonelectrolyte that has molar mass = 44.2 g/mol are combined with 110.0 grams of the solvent,?
the solubility reaction of interest in this solution? (b) Is a precipitate expected in the solution (Yes, No, or Not Enough Information to Know)?
When using a medicine dropper or a meat baster, you squeeze the rubber bulb and insert the end of the tube into a liquid. Why does the liquid rise inside the dropper or baster when you release the bulb?
One cubic meter of ideal diatomic gas is expand from 150 degrees, 8 bar isothermally to the final volume. The gas is then cooled at constant volume until 50 degrees and 3 bar
You obtain the following six measurements for the mass of water delivered by a special calibrated volumetric pipette
Calculate the concentration of NO3- ion remaining in solution.
Make a rough calculation of the amount of CO2 exhaled by a person in day. With this, and assuming a space crew of five, how much LiOH must be taken in a seven day mission? Take into consideration a safety factor of 200%.
The average concentration of strontium ion in seawater is 8.00 mg of strontium ion per kg of seawater. What is the molarity of the strontium ion if the density of the seawater is 1.025 g/mL.
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