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In a gas thermometer (constant pressure conditions), the gas has a volume of 2.00 L at 85.0 °C. The thermometer is placed in a freezer. The final volume measured is 0.500 L. What is the temperature of the freezer
At constant temperature, 36.1 L of N2 at 0.847 atm is compressed to 13.0 L. What is the final pressure of N2?
What will be the pressure of a sample of 48.0 grams of oxygen gas in a glass container of volume 5.2 L at 25 °C?
Calculate the ratio of NaCLO to HCLO required to create a buffer with a pH of 8.00. Ka HCLO=2.90 x 10^-8
A 16.96 gram sample of an organic compound containing C, H and O is analyzed by combustion analysis and 16.58 grams of CO2 and 3.394 grams of H2O are produced.
What will have the highest Rf value and which will have the lowest out of naphthalene (non polar), butyric acid (polar), and phenyl acetate (slightly polar) when developed on a silica gel TLC plate using benzene as the mobile phase
Patient recently dx and treated for pyelonephritis. Then dx with pnuemonia and currently on augmentin 875/125mg orally every 12 hours for 10 days.
The Freezing point depression of a .100 molal MgSO4 solution is .225Celsius . Determine the experimental Van't hoff factor of MgSO4 concentration. M=π/RT π=iMRT Tf=iKfm Answer is 1.21How do you get this
stock solution is prepared by adding 28 ml of 0.2 m na3po4 to enough water to make 76 ml. what is the po43-
How many grams of Cu(OH)2 will precipitate when excess NaOH solution is added to 73.0 mL of 0.661 M CuBr2 solution
A gas stream that contains 1.50 mole% CO2 flows through a pipeline. 20.0 kg/min of CO2 is injected into the line. A sample of the gas is drawn from a point in the line 10 meters downstream of the injection point and found to contain 2.3 mole% CO2.
Problem- Part-1 Given that Kw for water is 2.4× 10-14 at 37 °C, Compute the pH of a neutral aqueous solution at 37 °C, which is the normal human body temperature.
A reaction has a rate constant of 0.00704 sec-1, how long will it take (in minutes) until 0.212 mol/L of the compound is left, if there was 0.619 mol/L at the start
biacetyl the flavoring that makes margarine taste just like butter is extremely stable at room temperature but at
The polyyne molecules CkH2 with alternating triple and single carbon-carbon bonds represent potential nanowires for molecular electronics. They can be modelled as linear 1D-boxes with 2k
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