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Urea (NH2)2CO is prepared by reacting ammonia with carbon dioxide. The byproduct is water. 637.2g of ammonia are reacted with 787.3 g of carbon dioxide. Which of the two reactant is a limiting reactant
A gas in thermodynamical equilibrium consists of a mixture of 75 % hydrogen and 25 % helium in mass. Calculate the abundances in partical fractions.
Nitrogen dioxide decomposes according to the reaction. kp=4.48X10^-13 at a given temperature. If 0.6 atm of NO2 is added to a container and allowed to come to equilibrium. What are the equilibrium partial pressures of NO and O2
at what temperature should the tube be maintained to have a partial pressure of 1.0mm of O2 in the exit gas? Assume that the total pressure of the gas in the tube is 1.30atm.
Which of the following is not true regarding social development?
What is the mass (in g) of a cube of aluminum (density = 2.702 g/mL) with an edge length of 0.27 feet
In a reaction 8200 g of sodium reacts with 74.00 g of ferric oxide to form sodium oxide and iron metal. Calculate the mass of sodium iron produced.
What would the absorbance readings be for the acid and base forms of methyl red indicator at the acid wavelength? At the base wavelength?
The energy of a vibrating molecule is quantized much like the energy of an electron in the hydrogen atom. The energy levels of a vibrating molecule are given by the equation
The molar heat of vaporization of benzene at 1atm is 30.8kJ/mol. The boiling point of benzene at 1atm is 78.3C. Calculate the entropy change when 11.5g if benzene boils at this temperature
What volume of oxygen is needed to react with solid sulfur to form 6.20 L of sulfur dioxide?
A 25ml solution of quinine was titrated with 1.00 M hydrochloric acid, HCl. It was found that the soluiton contained 0.125 moles of quinine. What was the pH of the solution after 50 ml of the HCl solution were added? Quinine is monobasic with pKb=..
Organic chemistry, When 2-butene reacts with hydrogen chloride gas, only one product is detected, whereas when 1-butene reacts similarly
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