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If the flask volume is 3.50L, and the air is at a standard temperature and pressure, how many gaseous molucules does the flas contain
Chemicals available for extractions: CH2CL2, 1M NaOH, 1M HCL and sodium sulfate for drying, Chemicals available for crystallization: ethyl ether, 95% ethanol, methanol, isopropyl alcohol, acetone, hexane, toluene and methylene chloride.
A Cu/Cu2+ concentration cell has a voltage of 0.24 V at 25M . The concentration of Cu^2+ in one of the half-cells is 1.5×10-3 . What is the concentration of Cu2+ in the other half-cell?
What dansylated amino acids would be isolated after reaction of S-F-H-Y-W-C-T-L-C-K-L-I-N-D-S with dansyl chloride an the complete with hydrolysis
A stock solution is prepared by adding 22 mL of 1 M Na3PO4 to enough water to make 73 mL. What is the PO43- concentration of 30 mL of the stock solution?
A biochemical engineer isolates a bacterial gene fragment and dissolves a 19.6 mg sample of the material in enough water to make 37.9 mL of solution. The osmotic pressure of the solution is 0.340 torr at 25°C.
The Haber process is very important for agriculture because it converts N2 (g) from the atmosphere into bound nitrogen which can be taken up and used by plants. The reaction is N2 + H2->NH3
calculate the mass of agcl and h2s formed when 85.6 g of ag2s reacts with excess hcl.
For the following reaction, KOH(s)+SO2(g)=KHSO3(s), if 0.5 g of each reactant were allowed to react with each other... which of the following answer choices apply to finishing the above question 1. more than one gram of product would result
Determine the delta G standard state at 298 K from the following standard state values at T= 298, Determine the delta G standard state at 1000K. assume delta H is independent of temperature
Suppose Joule encountered the waterfall at Niagara Falls. Calculate the height if the temperature difference between the top and bottom of the waterfall is 0.20° F.
if 5.25mL of 0.1000 M NaOH solution is needed to just neutralize excess acid after 20.00 mL of 0.1000 M HCl was added to 1.00 g of an antacid, how many moles of acid can the antacid counteract per gram.
The specific heat capacity of graphite is .71 J/gC. Calculate the energy required to raise the termperature of 283 grams of graphite by 112 degree C.
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