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1. Write down the electron configuration of the B+ ion using the noble gas core notation?
2. What you will expect for the molecular formula, C7H6O2( Benzoic acid) if Determination of The molar mass of benzoic acid (C6H5COOH) has done by measuring the freezing- point depression in C6H6(benzene) is twice(2x) . give explanation for this apparent anomaly?
How many grams of potassium chlorate decompose to potassium chloride and 510. mL of O2 at 128°C and 652 torr?
determine whether a precipitate will form from the following reactants and if one does form write the total and net
What mass of carbon dioxide is produced from the complete combustion of 6.20×10?3 of methane: CH4+ 202 Yields CO2+ 2H2O
What is the concentration of the final solution obtained when 200.0 mL of a 0.00600-M solution of Red #40 dye is added to 400 mL of a 1.2 x 10^-2 solution of Red #40 dye to make a total volume of 600.0 mL?
a solution is prepared by mixing 50.0 ml of 0.17 m pbno32 with 50.0 ml of 1.9 m kcl. calculate the concentrations of
how many moles are there of the reducing agent. What is the molarity of the reducing agent? Oxidizing agent --> KMnO4 Reducing Agent --> Fe +2 Volume of Fe +2 = 25 mL Concentration of KMnO4 = 0.1290 M
a 1.00 liter solution contains 1.00 mol of weak acid HX. After 0.60 mol of Oh- is added to this olution, the pH of the solution is 4.00. Calculate the Ka for the acid HX.
A voltaic cell consists of a strip of lead metal in a solution of Pb(NO3)2 in one beaker, and in the other beaker a platinum electrode immersed in an NaCl solution, with Cl2 gas bubbled around the electrode. The two beakers are connected with a sa..
What is the mechanism of the formation of 1-bromobutane from 1-butanol using H2SO4 and NaBr? Also, how are1-butene and di-n-butyl ether are formed
Draw the product that is formed when 1-pentyne is treated with an excess of hydrogen gas and a nickel catalyst
If there are initially 7.21 grams of the compound dissolved in 110.0 mL of water, how many grams will remain in the aqueous layer after extraction with one 30.0 mL portion of ether?
What is the pH of an aqueous solution with a hydrogen ion concentration of [H ] = 1.6 × 10-9 M? b) What is the hydroxide ion concentration, [OH-], in an aqueous solution with a hydrogen ion concentration of [H ] = 1.6 × 10-9 M?
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