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A mouse is placed in a sealed chamber with air at 762.0torr. This chamber is equipped with sufficient solid KOH to absorb any CO2 and H2O produced by the mouse. The gas volume in this chamber is computed to be exactly 2.30 L and the temperature is held constant at 292K. subsequent to two hours the pressure inside the chamber falls to 725.2torr. Explain what mass of oxygen has the mouse consumed?
A 0.1276-g sample of monprotic acid (Molar Mass = 1.10x 10^2) was dissolved in a 25.0 mL of water and titrated with .0633 M NaOH after 10. mL of base had been added, the pH was determined to be 5.67. What is the Ka for the acid
Decide whether or not a reavtion will occur when a solution of Cadmium (II) chloride is treated with nitric acid HNO3(aq). Write a balanced equation for any reaction that occurs.
question a glycine buffer is prepared by mixing 100 ml of 1.0m glycine ph 6.0 with 100 ml of 0.5m naoh and 300 ml of
aqueous salicylic acid with 0.020 M KOH(aq), calculate the addition of 30.0 mL of KOH(aq)? For salicylic acid, pKa=2.97
how many regions of high electron density are there around the central atom of the molecular structure of SbCl3.
The osmotic pressure of a saturated solution of strontium sulfate at 25 C is 21 torr. What is the solubility product of this salt at 25 C
95% wt solution of ethanol in water has density of 0.804gm/mL. Find mass of 1.00L of this solution and the number of grams of ethanol per litre ?
Compare the amounts of reactants and products that will be present when the system reaches equilibrium. c.What will happen to the amount of Cl2 in the system if HCl is removed from the mixture. d. For this reaction, will the value of DG be positiv..
you have 75.0 ml of a 2.50 m solution of na2cro4aq. you also have 125 ml of a 1.79 m solution of agno3aq. calculate the
determine the specific heat of an unknown metal when 25.0 g of the metal initially at 80.0?c is added to 100.0 ml of
Draw the structure of the dimer. Water (circled) is eliminated when the bond between the monomers forms. Circle the atoms of the ester functional group.
The pH of a dimethylamine aqueous solution is 11.98. (CH3)2NH + H2O ? (CH3)2NH2+ + OH-, The dimethylamine solution is 0.146 M a) Calculate the Kb value for dimethylamine.
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