Physical Chemistry Answers

A binary liquid mixture is in equilibrium with its vapour at a temperature T=300K. The liquid mole fraction x1 of species 1 is 0.4 and the molar excess Gibbs energy is 200J/mol. the value of the universal gas constant is 8.314 J/mol/k and y1 denotes the liquid phase activity co-efficient of species.
1. If ln(y1)=0.09, find the value of ln(y2).

Which of the following gas is not associated with global warming and why?
CO2
SO3
CH4
H2

Compute for the [PO4 ^3-] of a 0.025M H3PO4 solution

λ=2dsinθ . d is
crystal size
distance between planes
distance between x-ray sources
incidence and diffracted rays

Write the balanced equation for the neutralization reaction between H2SO4 and KOH in aqueous solution. Phases are optional

A crystal has a=2,b=3 and c=3oA and α=β=γ=90o. What is the length of the longest diagonal?

While using a UV-Vis spectroscopy for concentration of the analyte of 0.11 and 0.21 mM, the absorbance read are 2 and 3 units receptively. What is the concentration if the absorbance read is 2.6 units?

A crystal has a=2,b=3 and c=3oA and α=β=γ=90o. What is the length of the longest diagonal?

While using a UV-Vis spectroscopy for concentration of the analyte of 0.11 and 0.21 mM, the absorbance read are 2 and 3 units receptively. What is the concentration if the absorbance read is 2.6 units?