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What is molecular weight of a gas that effuses 1/4 as rapidly as CH4? I need to know how to SOLVE the problem. The answer should be 256.
How would the % yield of aspirin be changed if the final rinse of the solid product on the filter paper was done with warm water instead of ice cold water
hydrogen gas is collected over water at 21 degrees C and an atmospheric pressure of 748 mm Hg. what is the partial pressure of hydrogen gas in the mixture
Calculate the mass of aluminum deposited on the purified aluminum metal by the application of a current of 1.225 kiloamperes for 30 minutes from a very large quantity of a solution containing Al3+ ion in the Al2O3/Na3AlF6 molten state
What is the estimated temperature of the object using the above approximate prescription? What is the percent error?
15.0 mL of 0.50 M HCl is added to a 100.-mL sample of 0.496 M HNO2 (Ka for HNO2 = 4.0 × 10-4). What is the equilibrium concentration of NO2- ions?
Calculate the equilibrium concentrations of I2, Cl2, and ICl. (Kc = 0.110 at this temperature.)
How much HCl is leftover after the 20.0 mol of HCl reacts with the 12.5 mol of NaOH?
The titration is monitored with a potentiometer using a SCE reference electrode (Eref= 0.241V). the solution is buffered at ph=4.00.
How would you know which is the most polarizable and how would you order the boiling points from lowest to highest?
Cs in the metal with a bcc structure is 272 pm, calculate the expected atomic radius of the Cs atom with a coordination number of 12.
How many grams of H3PO4 are in 175 mL of a 3.5 M solution of H3PO4?
Complete the mechanism for the base-catalyzed racemization of the chiral ketone below by adding any missing atoms
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