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A 4.00-g sample of a mixture of CaO and BaO is placed in a 1.00-L vessel containing CO2 gas at a pressure of 730 torr and a temperature of 25 °C. The CO2 reacts with the CaO and BaO, forming CaCO3 and BaCO3.When the reaction is complete, the pressure of the remaining CO2 is 150 torr.
(a) Calculate the number of moles of CO2 that have reacted.
(b) Calculate the mass percentage of CaO in the mixture.
Isobutane is the fuel used in disposable lighters. The lighters' operation is dependent upon the butane's ability to vaporize and be ignited, and this depends somewhat upon the large pressure difference between the inside of the lighter
At what temperature degrees C will xenon atoms have the same average speed that Cl2 molecules have at 25 degrees C
The dipole moment of hydrogen chloride is 1.08D while that of hydrogen bromide is 0.82D. On the basis of dipole-dipole interactions, hydrogen chloride should have a higher boiling point than hydrogen bromide. The opposite is the case, however. Why
What is a sign for the thermochemical process of melting NaCl. 2. 150 g sample of metal at 80oC added to 150 g of H2O at 20oC. The temperature rises to 23.3oC. what is aa specific heat of metal. Specific heat of water is 4.18 J/g.oC.
A compound is composed of element X and hydrogen. Analysis shows the compound to be 80% X by mass, with three times as many hydrogen atoms as X atoms per molecule. Which element is element X
If the initial concentration of the reactant in a first order reaction is .5 mols/L and the half life is 500 seconds, calculate the concentration of the reactant 1200 seconds after initiation of the reaction?
She pours a 50.0 mL sample of water at 345 K into the calorimeter containing a 50.0 mL sample of water at 298 K. She carefully records the final temperature of the water as 317 K. What is the value of Ccal for the calorimeter?
Which sequence of reactions would you use to synthesize 2-cyanohexane (racemic mixture) using 1-hexene as your starting material? Question 6 options: Reaction with (1) H2SO4 (cat.)
Draw the electron dot formula for each of the following molecules or ions: a) H2O; b) CCl4; c) H3O^+; d) SiF4; e) CF2Cl2; f) C2H6 HH
In the explosion of a hydrogen-filled balloon, .5 grams of hydrogen reacted with 4.0 grams of oxygen to form how many grams of water vapor. (Water vapor is the only product.)
Will the mixed function of desaturases function under strictly anaerobic conditions? Explain.
How many grams of hydrogen are necessary to react completely with 50.0 g of nitrogen in the following reaction: N2+3H2 = 2NH3 ?
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