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The concentration of KBr in a solution prepared by dissolving 2.13 g of KBr in 897 g of water is _________ moral:
a 2.46b 0.0000207c 0.0200d 0.0167e 0.0186
Dust falls on Chicago at a rate of 65mg m-2 day-1. Major metallic elements in the dust include Al, Mg, Cu, Zn, Mn, and Pb^5. Pb accumulates at a rate of 0.03mg m-2 day-1. How many metric tons
What would happen if the buret washed and rinsed properly but not conditioned with sodium hydroxide solution, prior to standardizing the sodium hydroxide solution?
Unfortunately, a mixup in the laboratory prevented an immediate analysis, and it was not until 17.0 days later that a measurement on the blood was made.
If a cell is in a resting state, which of the following is NOT true: a. cell needs little energy b. high ATP, low ADP levels
What is the change of H for the following reaction at 273 K?
What current is required to depostit, on the cathode, 5.00 g of gold/hr from a solution containing a salt of gold(III)
At 1045K the partial pressures of an equilibrium mixture of H2O (g), H2 (g), and O2 (g) are .040, .0045, and .0030 respectively. Calculate the value of the equilibrium constant Kp at 1045K
A 500.0 g sample of aluminium is initially at 25.0 °C. It absorbs 32.60 kJ of heat from its surroundings. What is its final temperature, in °C? (specific heat = 0.9930 J g-1 K-1 for aluminum)
Complete and balance an equation describing each of the above reactions. (Type your answer using the format CO2 for CO2, (NH4)2CO3 for (NH4)2CO3, [NH4]+ for NH4+, and [Ni(CN)4]2- for Ni(CN)42-. Use the lowest possible coefficients.)
Butyric acid is responsible for the odor in rancid butter. A solution of 0.25 M butyric acid has a pH of 2.71. what is the Ka for the acid
You respond to a 2AM liquefied compressed gas transportation accident which is leaking from a 5lb (2.3kg) steel cylinder. Chemical commodity on shipping paper is 5 lb RQ, compressed gas, flammable, toxic, n.o.s. (poison - inhalation hazard, zone B..
Calculate the mass of silver chloride in grams required to make 4.4g of silver plating.
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