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14.0 moles of gas are in a 5.00L tank at 24.0 C . Calculate the difference in pressure between methane and an ideal gas under these conditions. The van der Waals constants for methane are a = 2.300 L^2 ; atm/mol^2 and b = 0.0430\rm ~L/mol
calculate the approximate mass of KHP required to react with 40.0 mL of 0.125 M sodium hydroxide in titration.
The ion is stabilized due to the delocalization of the positive charge to the aromatic ring. Draw resonance structures that indicate the stability of this ion.
Compute the band gap for this semiconductor material after Consideing an intrinsic semiconductor with a conductivity σ that triples between the temperature 27 degree Celsius and 57 degree celsius.
A steel cylinder with nitrogen, hydrogen, and ammonia gases is at 500°C and 4.91 atm. If the partial pressure of nitrogen is 1850 mmHg and hydrogen is 1150 mmHg
The visual raw meat color was red(outside) and brown(inside) and when mixed with NaNO2 and NaNO3 the color changed to slight maroon and medium brown and pink.
Compute the number of moles of H2O will be formed from the reaction 75.1g benzene?
A steel cylinder is filled with 5.75 mol of nitrogen at 22degrees Celcius. The volume of the cyclinder is 18.4 L Calculate pressure inside the cylinder.
A certain first-order reaction (products) has a rate constant of 6.90×10-3 s^{-1} at 45 C. How many minutes does it take for the concentration of the reactant, [A], to drop to 6.25% of the original concentration?
A 25.0g sample of nitrogen (N2) has a volume of 50.0L and a pressure of 630.0 mmHg. What is the temperature of the gas.
what is the molar mass of glucose if 22.5g gives a freezing point of -0.930 C when dissolved in 250 g of water?
A buffer is made using 45.0 mL of 0.750 M HC3H5O2 and 55.0 mL of 0.700 M NaC3H5O2.What volume of 0.10 M NaOH must be added to change the pH of the original buffer solution by 2.5%? Ka for this acid is 1.3 x 10
The reaction: 2 HI → H2 + I2, is second order and the rate constant at 800 K is 9.70 × 10-2 M-1 s-1. How long will it take for 8.00 × 10-2 mol/L of HI to decrease to one-fourth of its initial concentration.
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