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How is the atmospheric pressure corrected for:
A) the percent of water vapor ?
B) the level of liquid in the tube different from that in the beaker?
What would be the effect (increase , decrease or no change ) on the calculated value of R of each of the following ? Explain each answer.
A)an air bubble was trapped in the audiometer once it is being inverted in the beaker.
B)some Mg adheres to the inside wall of the audiometer tube after the reaction has ceased and the acid level is quite a bit lower than the piece of Mg.
C) some H2 escapes into the beaker during the reaction
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The heat of vaporization of methanol, CH3OH, is 35.20 kJ/mol. Its boiling
point is 64.6°C. What is the change in entropy for the vaporization of
methanol?
A solution of HCl is known to be 0.5622 N. When titrated against KOH, 45.22 ml of the acid neutralized 48.23 ml of the base. Calculate the N of the base.
What is the pH of the solution containing 0.20 M NH3 and 0.15M NH4Cl?
Given the Equation 6K + B2O3. 3K2O + 2B
How many grams of K2O will be produced whe you react one 3.5 g of B2O3
The normal boiling point of C6H5Br is 156.15 celsius . Using Trouton’s Rule find the
vapor pressure at 100 Celsius and compare with the observed value of 141.1 mm Hg.
Calculate the pH of the following acid or base.
- A 0.010 M HCl solution
pOH =
pH =
- A 0.010 M HCl solution
pOH =
pH =
