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To what general class of mechanisms does the attack of bromide ion, Br-, on the cyclic bromonium ion ( bridged bromonium intermediate of E-stilbene) belong? does this ring-opening step follow first or second-order kinetics?
The "Zebra" cell was invented in 1985 in South Africa as part of the "ZEolite Battery Research Africa" project, and is used in all-electric municipal buses and other vehicles.
IF you want to prepare a solution that is .200 molal in NaNO3, how many grams of the salt would you add to 500 grams of water?
Mg +2HCl-> MgCl2 + H2 what volume of Hydrogen at STP is produced from the reaction of 50.0g and the equivalent of 75 g of HCl? Also, How much of the excess reagent is left over?
delta H=483.6 kJ/mol If 2.0 moles of H2O(g) are converted to H2(g) and O2(g) against a pressure 1.0 atm at 145 degrees C, what is the delta E for this reaction?
Suppose you wanted to heat a mug of 250. mL water from room temperature, 25°C, to 100°C to make a cup of tea. How much energy (in joules and in calories) would you need from your microwave.
How many grams of water are formed when 5.00 g of butanol combust with excess oxygen according to the reaction shown below?
When (R)-2-butanol is treated with TsCl in pyridine,the product formed and Classify the reaction
Given the following two solutions: 0.200 M HC2H3O2(aq) with pKa = 4.76 ; 0.200M NaOH(aq) A mixture is made using 50.0 mL of the HC2H3O2 and 25.0 mL of the NaOH. What is its pH?
A 25.0-mL sample of 1.00 M NH3 is titrated with 0.10 M HCl. What is the pH of the NH3 before the titration begins? Kb = 1.8 × 10-5
A solution is made by mixing 500 mL of .121 M NaOH with 500 mL of .1 M CH3COOH. Calculate the equalibrium concentrations of H+. CH3COOH, CH3COO-, OH- and Na+
Write the electron configuration of selenium. List the following compounds in order of increasing lattice energy: NaCl, NaBr, MgO, CaO.
the total pressure in the container is 3.70 atm . Calculate the partial pressure of each gas in the container
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