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3.25 grams of sodium cyanate, NaCNO, is weighed, and dissolved in enough water to make 250.0 mL of solution. Write the hydrolyis reaction for the ion that controls the pH, and calculate the pH.
Draw the monobromination product that would be obtained from the radical bromination of methylcyclohexane? which product would obtained in greatest yield?
What is the entropy change for freezing 4.25 g of C2H5OH at 158.7 K? H = -4600 J/mol. Answer in units of J/K.
what is the ppm of hardness for the 0.00100 M CaCl2 solution?
Draw the reaction energy diagram for this reaction mechanism. In your diagram, label for each step, Estimate the relative amount of each product that would result. Please show all of your math
Some of the best laboratory vacuum systems can pump down to as few as 9.0 multiplied by 109 molecules per cubic meter of gas. Calculate the corresponding pressure, in atmospheres, assuming a temperature of 25°C.
How many moles of ammonium ions are released when 1.6 mol of ammonium phosphate, (NH4)3PO4, is dissolved in water?
How much energy is required to evaporate 100.0 grams of water that is at 100.0 degrees Celsius?
A 4.5 g nugget of gold absorbed 276 j of heat. What was the final temperature of the gold if the initial temperature was 25 OC ? The specific heat of gold is 0.129 j/g OC.
A mixture of CaCO3 and CaO weighing 0.705 g was heated to produce gaseous CO2. After heating, the remaining solid weighed 0.474 g.
Draw two pictures. One of a graduated cylinder filled with liquid in which it is possible to read its volume as 10.oo ml and one of a second graduated cylinder filled with liquid
Strontium metal crystallizes in a cubic unit cell which has an edge length of 612 pm. If the mass of an atom of Sr is 87.62 amu, and the density of Sr metal is 2.54 g/cm3
What is the vapor pressure at 100 C of a solution containing 1.68g of sucrose (mol weight = 342.30) and 15.6 g of water
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