Physical Chemistry Answers

HOW MUCH ENERGY IS REQUIRED TO HEAT 80 grams of water from 26°C to 48°C ? the

specific heat capacity of water is 4.184 J/g °C.

One component of an ideal binary solution has a pure component vapor pressure equal to one-fourth the total pressure of the vapor mixture. The component constitutes 20 mole % of liquid phase. What is its mole fraction in the vapor phase?

What do you mean by osmatic pressure ? Write it's expression and describe any one method for its determination. Calculate the osmotic pressure due to 25% of cane sugar solution at 20° C .(Mol wt. of sugar = 342)

An electrochemical cell consists of iron electrode dipped in 0. 1M FeSO4 and silver electrode

dipped in 0.05M AgNO3. Write the cell representation, cell reactions and calculate emf of the cell

at 298K.Given that the standard reduction potentials of iron and silver electrodes are – 0.44V

and + 0.80 V respectively.

The specific conductance of acidic acid is 1.63 and molar conductance at inginite is 390.7 .calculate the degree of dissociation

The resistance of a conductivity cell filled with an electrolytic solution is observed to be 180 ohm if the resistance of 0.1 M Kcl solution taken in the same cell was found to be 72 ohm calculate the conductivity of the given solution .

Given :the conductivity of 0.1 M Kcl solution =1.291/m

What is wootz steel? How it is produced?

What is wootz iron? How it is produced

Steve races to the nearest taco stand at lunchtime and sees that his pedometer recorded his peak speed at 87.7 cm/s. What was Steve's peak speed in kilometers per hour?

For the reaction C + 2H₂ → CH₄, how many grams of hydrogen are required to produce 3.6 moles of methane, CH₄ ?

Round your answer to the nearest tenth. If you answer is a whole number like 4, report the answer as 4.0

Use the following molar masses. If you do not use these masses, the computer will mark your answer incorrect.: