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- What is the concentration of a stock solution if a 1 in 14 dilution has a concentration of 40 mg/ ml (Remember: 1 in 14 means 1 part solvent in 14 parts total)?
- How many grams of glucose would you need to make 250ml of a 6% solution?
- If 6g of NaCl is dissolved in 1L of solution, what percent concentration is prepared?
Water is flowing into a vertical-wall box stormwater catch basin at 0.027 m^3/s. The catch basin dimensions are 3.0*3.5*2.5 meters (l*w*h) before it overflows into the storm sewer.
Describe the three types of models (layer sequence drawings, computer graphics, balls and sticks) used for visualizing the three dimensional structure of unit cells
The vapor pressure of water at 25deg C is 23.8 torr. Determine the mass of glucose (MolarMass=180g/mol) needed to add 500g of water to change the vapor pressure to 23.3 torr.
Calculate the rotational partition function of H2O at 298K fromits rotational constants27.878 cm-1, 14.509 cm-1 and 9.287 cm-1
1) Calculate the equilibrium constant at 298K for the reaction CaCO3(s) --> CaO(s) + CO2(g) delta G0 = -254.8 KJ a) 4.61 b) 4.61*10^44 c) 1.02*10^2 d) None of the above
0.010 M aqueous solution of a weak acid HX, has a pH of 4.0. What is the percentage ionization of HX in the solution
a 250 mL sugar solution has a density of 1.37g/mL an additional 30.0g of sugar was added to the solution, raise the volume to 24.6mL. Explain what is the density of the resulting sugar solution
the average rate of consumption of br- is 1.85times10-4 over the first two minutes. what is the average rate of
Assuming that each tank car had a capacity of 33,500 gal, knowing that the density of liquid propane at its boiling point (-44.5°C) is 0.5853 g/cm3, and assuming that the propane vaporized and warmed to 25°C
You need to make 0.075 L of a sulfuric acid solution that has a concentration of 3.50 M. If you are going to use 12.0 M as your stock solution to make the dilution, how much of the stock solution should you use?
In cyclic voltammetry, working electrode potential is scanned from negative to positive direction. Why the current does not increase linearly with the increase of potential (OHm's Law). In fact, a peak of current is observed.
Problem- a) How many Cl atoms are in 175 mL of 3.5 M CaCl2. b) What is the concentration (M) of Cl in the solution
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