Determining mole fraction of water in mixture
A mixture has 18 g water and 414 g ethanol. What is the mole fraction of water in mixture (suppose ideal behaviour of mixture): (i) 0.1 (ii) 0.4 (iii) 0.7 (iv) 0.9 Choose the right answer from above.
A mixture has 18 g water and 414 g ethanol. What is the mole fraction of water in mixture (suppose ideal behaviour of mixture): (i) 0.1 (ii) 0.4 (iii) 0.7 (iv) 0.9
Choose the right answer from above.
Expert
The right answer is (a) Molecular weight of C2H5OH = 24+5+16+1= 46Molecular mass of H2O = 18414g of C2H5OH has 414/ 46= 9 mole18g H2O has 18/18 = 1 moleMole fraction of water = n1/ n1 + n1 = 1 / 1+9 = 1 / 10 = 0.1
Second ionization potential of Li, Be and B is in the order (a)Li>Be>B (b)Li>B>Be (c)Be>Li>B (d)B>Be>Li
in bioremediation gibberella fusarium is used to break down____?
arrange in decreasing order of basicity pi pyridine,pyridine,pyrrole, morphine
I want it before 8 am tomorow please. I am just wondering how much is going to be ?
Can someone please help me in getting through this problem. Which of the given concentration factor is affected by the change in temperature: (1) Molarity (2) Molality (3) Mole fraction (4) Weight fraction
Show the organic structure of cetearyl alcohol and state what the organic family is? Briefly state it.
Provide solution of this question. A certain aqueous solution of FeCl3 (formula mass =162) has a density of 1.1g/ml and contains 20.0% Fecl. Molar concentration of this solution is: (a) .028 (b) 0.163 (c) 1.27 (d) 1.47
When the diffusion process is treated as the movement of particles through a solvent the diffusion coefficient can be related to the effective size of diffusing particles and the viscosity of the medium.To see how the experimental coefficients can be treat
1. A solution of 0.100 M acetic acid is prepared. a) What is its pH value? b) If 20% of the initial acetic acid is converted to the acetate form by titration with NaOH, what is the resultant pH?
The temperature reliance of internal energy and enthalpy depends on the heat capacities at constant volume and constant pressure. The internal energy and enthalpy of chemical systems and the energy changes that accompany chemical reactions depend on the
18,76,764
1935309 Asked
3,689
Active Tutors
1423866
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!