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The general public often expects solutions to our environmental issues that have zero risk. Explain if thats possible.
heat capacity of the bomb calorimeter is known to be 10.6 kJ/C From previous measurements,. Now determine the mass percent of naphthalene(C10H8) in the sample?
A balloon with the volume 40.0cm^3 contains helium gas at STP. What is the number of helium atoms in the balloon
the activation energy for a reaction is changedfrom 241 kjmolto 55.5 kjmolat 641 k by the introduction ofa catalyst. if
A certain bottled water lists a calcium concentration of 55 mg/L. What is its calcium concentration expressed in parts per million (ppm)
b) A 25.0mL sample of a citrus beverage is being analyzed for ascorbic acid (molar mass=170g/mol) by titration with KIO3. 15.5mL of a 0.121M KIO3 are dispensed to reach the blue endpoint. How many mg of ascorbic acid were in those 25mL
A 40.0 g sample of solid ammonium carbonate is placed in a closed evacuated 3.00 L flask and heated to 400 degrees C. It decomposes to produce ammonia, water and carbon dioxide. The equilibrium constant, Kp, for the reaction is 0.295 at 400 degree..
Which of the following enzymes catalyzes a group transfer reaction? A. hexokinase B. aconitase C. phosphoglycerate mutase D. malate dehydrogenase E. triose phosphate isomerase
An alpha particle (mass = 6.6 multiplied by 10-24 g) emitted by radium travels at 3.2 multiplied by 107 ± 0.1 multiplied by 107 mi/h. What is its de Broglie wavelength (in meters)
What is the power output of the turbine? H1= 1322.6 Btu/lbm v1=3.058 (ft)^3/lbm H2= 1148.6 Btu/lbm v2=78.14 (ft)^3/lbm
if 29.7mL of a .205 M KOH solution is required to completely neutralize 25.0mL of a solution of CH3COOH, what is the molarity of the acetic acid solution? CH3COOH(aq)+KOH(aq)>KCH3COO(aq)+H2O(l)
we want to prepare a buffer of ph 8.5643 by adding hcn and nacn to 1.860 l of solution. what is the ratio of hcn to
A mixture of methane and air is capable of being ignited only if the mole percent of methane is between 5% and 15%. A mixture containing 9.0 mole % methane in air flowing at a rate of 700.kg/h is to be diluted with pure air to reduce the methane c..
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