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Prepare a chemical reaction for a generic alkyl halide with silver nitrate in ethanol as well as with sodium iodide in acetone. In each case, which alkyl halides react faster?
An unknown compound B has the melting point 112.5-114 degrees C. It is suspected that B is either X or A, each compound having reported mps of 115degreesC. Assuming B is X, indicate the mp range (give actual values) for the Melting points
if 60.2 grams of hg combines completely with 24.0 grams br to form a compound what is the percent composition of hg in
You have 16 electrons, 16 protons, and 16 neutrons. You can combine them to make 8 Helium (He-4) atoms, 4 beryllium atoms (Be-8), 2 oxygen atoms (O-16), or one sulfur atom (S-32).
If you stacked Avogadro's number of pennies one on top of the other on Earth's surface, how far would the stack extend (in km). [For comparison, the sun is about 150 million km from Earth and the nearest star (Proxima Centauri) is about 40 trillio..
Which of the following compounds is expected to have the highest boiling point? octane, 2,3-dimethylhexane, 2,2,3,3-tetramethylbutane
Calculate the acid dissociation constant Ka, for the ammonium ion (NH^4+); Kb for NH3 is 1.8 x 10^-5
What is the approximate value of the equilibrium constant, Kn, for the neutralization of hydrochloric acid with sodium hydroxide, shown in the equation below? HCL(aq) + NaOH(aq) --> H2O (l) + NaCl (aq)
The boiling point of water at sea level Is 1000C. At higher altitudes, the boiling point of water will be a) lower, because temperatures are lower b) lower, because the atmospheric pressure is lower c) higher, because the altitude is greater.
A scientist wants to make a solution of tribasic sodium phosphate, Na_3PO_4, for a laboratory experiment. How many grams of Na_3PO_4 will be needed to produce 350 mL of a solution that has a concentration of Na^+ ions of 1.20M
compressed gas cylinder contains 1.00 x 103 g of argon gas. The pressure inside the cylinder is 2050 psi at a temperature of 18oC. How much gas remains in the cylinder if the pressure is decreased to 650psi at a temperature of 26oC?
Antacids are compounds, usually bases, used to decrease the amount of hydrochloric acid in the stomach. Write a brief titration procedure for determining how many moles of acid a single antacid tablet would neutralize.
If a total of 13.5 mol of NaHCO and 4.5 mol of C H O react, how many moles of CO and Na C H O will be produced? 3NaHCO (aq) + C H O (aq) 3CO (g) + 3H O(s) +Na C H O (aq).
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