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A solution is prepared by dissolving a certain amount of glucose (C6H12O6) in 355 g of water. The final volume of the solution is 378 ml and density of the solution is 1.0143g/ml. For this solution, calculate the concentration in each unit. (atomic masses (g mol ^-1): H= 1.008 .011, .999)
Find:
Suppose the radius of an atom in a simple cubic unit cell is 0.27 nm. What is the edge length of the unit cell in nm.
kinetics of the reaction between iodide and persulfate. procedure popet 4 ml of the idoide solution and 12 ml
What is the percent hydrogen (H) by weight of a solution containing 53.5 mL of CH3COCH3? The density of acetone is 0.788 g/mL.
CaCO3(s) CaO(s) + CO2(g) H°rxn = 175 kJ How will the amount (not concentration) of CaCO3(s) change with the following stresses? CO2(g) is removed. CaO(s) is added. The temperature is increased. The volume of the container is decreased.
A mechanic in an automotive repair shop is exposed to the following carbon monoxide levels over an 8 hour shift.
An equilibrium mixture of this reaction at a certain temperature was found to have [NH3]= 0.270M and [H2S]= 0.360M. What is the value of the equilibrium constant (Kc) at this temperature?
Suppose a solution contains 0.27 M Pb2 and 0.45 M Al3. Compute the pH range that would allow Al(OH)3 to precipitate however not Pb(OH)2. The Ksp values for Al(OH)3 is 4.6*10-33 as well as Pb(OH)2 is 1.43*10-20
A household refrigerator operates between 35 and -10C. How many joules of heat can in principle be removed per kilowatt-hour of work?
In the reaction below, 6.31 atm each of Br2 and I2 were placed into a 1.00 L flask and allowed to react: Br2(g) + I2(g) 2 IBr(g) Given that Kc = 80.8, calculate the equilibrium pressure of IBr.
Problem- Consider 2.0 mol of N2 that at 25 degrees Celsius and 1atm mind to the equation of state P(V-nb)=nRT where b = 0.03913 mol^-1. Find 1) The change in internal energy with respect to the change in volume during an isothermal process
The Instructor recently had his car inspected by the KWIK Stocker State Inspection at Webster, Texas. The table below shows part of the Emission Test Results.
1. A sample of helium gas occupies 120 mL at 71 mmHg. For a gas sample at constant temperature, determine the volume of helium at 45 mmHg. Show your work.
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