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With ammonium carbonate and calcium chloride, On the basis of general solubility rules, predict the identity of the precipitate that forms when aqueous solutions of the following substances are mixed.
How many times faster (to 0.01 X faster - that is, what is the ratio of v20/v44) would the rate of diffusion of a gas with a molecular mass of 20 g/mol be than the rate of diffusion of a second gas having a molecular mass of 44 g/mol?
Include in your explanation from which C and in what form the H would have to leave: [H+, H(with one electron), H(with two electrons)].
Silver crystallizes in face centered cubic unit cell. a silver atom is at edge of each lattice point the length of the edge of the unit cell is 0.4086 nm. What is the atomic radius of silver
Explain the half life of 42K is 12.5 h. Explain how much will remain after 83 h if the original sample contained 256 g of 42K
Explain what Carboxylic acid is produced from the acid hydrolysis of butyl acetate butyl ethanoate? Draw it out.
where b and R are constants. If the pressure and temperature are such that Vm = 10b, what is the numerical value of the compression factor?
how many atoms of iodine are in .500 moles of caio32? how many grams of calcium iodate are needed to supply this much
based on the law of multiple proportions how many grams of hydrogen would you expect 2.49 of nitrogen to combine with
Calculate the ratio of CH 3 NH 2 to CH 3 NH 3 Cl required to create a buffer with pH = 10.14. Express your answer using two significant figures.
using a sample of naphthalene c10h8 of 2.45 grams nbspis contaminated with a material noncombustible. nbspheat of
1) Draw the form (structure) of ascorbic acid that is present at physiological pH (in the body; pH= 7.4). What diseases can be prevented and/or treated by the intake of ascorbic acid?
What is the value of deltaH0 (in kJ) for the reaction described below. Assume the reaction is performed at 250C. C2H2 (g) + 2H2 (g) -----> C2H6 (g) a. - 248 b. - 311 c. - 173 d. 236
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