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The molar heat capacity of silver is 25.35 . How much energy would it take to raise the temperature of 10.2 of silver by 19.6? With these numbers, what is the specific heat of silver?
The osmotic pressure of blood at 27 degrees Celcius is 7.7 atm. A solution that is given intravenously must have the same osmotic pressure as the blood.
A 25.0g sample of nitrogen (N2) has a volume of 50.0L and a pressure of 630.0 mmHg. What is the temperature of the gas.
A student adds 6.60 of a 0.380 solution to the beaker. How much will the pH change? The of acetic acid is 4.760.
Basic copper carbonate contains 57.48% copper and 5.43% carbon by mass. What mass of copper in g is contained in 7.061 kg of basic copper carbonate
Traces of toxic, man-made hexachlorohexanes in North Sea sediments were extracted by a known process and by a new procedure, and measured by chromatography.
How many neutrons and protons are contained in the nucleus of this isotope?
Calculate the average molar mass of this element. The mass of the neutron is 1.67262164 × 10324 g and the mass of the proton is 1.67492721 × 10324 g. Assume for each isotope, the mass defect (that is, the mass of the neutrons and protons that is c..
A 300.0-mL saturated solution of gold (II) phosphate, contains 0.31 grams of dissolved salt. a. Write an equilibrium expression for the solubility product constant.
What is the pH of the buffer that results when 11 g of NaCH3CO2 is mixed with 85 mL of 1.0 M CH3CO2H and diluted with water to 1.0 L? (Ka of CH3CO2H = 1.8 ´ 10-5)
Hydrochloric acid B) Ammonium Hydroxide 2) Identify the geometry of the iron(III) complex in water and the complex ions produced in the above reactions
There are 2.2 mg of lead in exactly 500 g of a water sample. What would the concentration of lead be in parts per million.
What will happen to the retention time if the flow rate is increased What will happen to the retention time if the temperature of the column is increased
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