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A 2.00g sample of a particular compound was dissolved in 15.0 g of carbon tetrachloride. The boiling point of this solution was determined to be 77.85 Celcuis.
For pure CCl4, Tb = 76.50Celcuis and Kb = 5.03 Celcuis kg/mol
Calculate the boiling point elevation, (triangle symbole before Tb) Tb, for this solution.
The _______ of a titration occurs when the indicator changes color.
what mass of limestone must have dissolved if 3.05x10^10 kg of calcium hydrogen carbonate was produced? CaCO3(S)+H2CO3(aq)->Ca(HCO3)2(aq)
calculate the number of moles of gas generated when 0.165grams of aluminum reacts with hydrochloric acid
How much air is required in one hour to completely react all of the galena? Air is 21% oxygen. C. Assuming the exit temperature of the flue gas is 650 ºC and the barometric pressure is 0.9 atm, what is the volume of the sulfur dioxide produced?
The half-life of cobalt-60 is 5.27 years. How many milligrams of cobalt-60 remain after 52.7 years if you start with 10.0 mg.
A beaker containing 250 mL of a 0.500 M solution of acetic acid COOH) is added to 125 mL of a 0.850 M solution of sodium carbonate. The reaction that ensues produces carbon dioxide, sodium acetate COONa), and water. How many grams of carbon dioxid..
at 25 degrees C a saturated solution of a metal hydroxide has a pH of 9. What is the value of the solubility-product constant (Ksp) of M(OH)2 at 25 degrees C?
calculate the expected change in temperature for 4.5 g of NH4NO3 dissolved in 100.0 mL of H20. Assume that the calorimeter absorbs no heat. (ie. Ccal=0)
Find out the Celsius temperature of 2.49 mol of gas contained in a 1.00 L vessel at 1.8 atm pressure.
Titration of sodium carbonate with HCl to the methyl orange end point involves the reaction of 1 mole of Na2CO3 with 2 moles of HCl. Write the balanced chemical equation in a.
A gas in a sealed container has a pressure of 125 kPa at a tempurature of 30.0 degrees celcius. If the pressure in the container is increased to 201 k Pa, what is the new tempurature?
An excess sample of solid Ag2SO3 is added to 100 mL of water. After equilibrium is achieved between the solid and its aqueous ions the silver ion concentration is found
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