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What is the pH of a saturated solution of Ba(OH)2 at 25oC? For Ba(OH)2, Ksp=5.0x10-3. Give three digits in your answer
The highest possible oxidation state for halogens is +7 and the lowest possible is -1. Which of the following could not disproportionate?
the specific heat of ethylene glycol is 2.42 J/g-K. How many J of heat are needed to raise the temperature of 62.0 g of ethylene glycol from 13.1 C to 40.5 C ?
given the following substances, xenon, ammonia, iodine monochloride, and fluorine, and the following statements,
What did the student do wrong? If the solution had been prepared correctly to the desired 1.0 M concentration, what volume of this stock should be diluted to prepare 100.0 mL of a 1.0 mM working solution?
10.0 mL of a 0.30 M sodium phosphate solution reacts with 20.0 mL of a 0.20 M lead(II) nitrate solution (assume no volume change)What mass of Pb3(PO4)2 will form
ond weighs 44.0 carats. Determine the volume occupied by the diamond, given that its density is 3.5 g/cm3 at 20°C, and that 1 carat = 0.200 g.
What is the activation energy of a reaction. What are the two ways that the activation energy can be determined for a reaction, i.e. consider graphing what data and using what formula
Calcium carbonate is relatively insoluble and the dissolution reaction is endothermic: CaCO3 ---> Ca2+ CO3^-2
Nitrogen dioxide dimerizes to produce dinitrogen tetroxide. Give a possible explanation for why this reaction occurs
A solution of glyceraldehyde, C3H6O3, has a density of 1.15 g/mL, and a mass percentage of 28.1% glyceraldhyde at 25 deg C. (molar mass = 90.078g/mol)
How many liters of the antifreeze ethylene glycol [CH2(OH)CH2(OH)] would you add to a car radiator containing 6.50 L of water if the coldest winter temperature in your area is -37°C
How would the following modifications of the experimental procedure used in this experiment affect the mass of the precipitate collected? Indicate whether the mass would be greater than, unchanges, or less than that obtained. Briefly explain the a..
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