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
Select the right answer of the question. "The relative lowering of the vapour pressure is equal to the mole fraction of the solute." This law is called: (a) Henry's law (b) Raoult's law (c) Ostwald's law (d) Arrhenius's law
comparison of biodegradable and non-biodegradable polymers
1. Define Faraday's first law of electrolysis 2. define Faraday's second law of electrolysis
6. 20 gm of hydrogen is present in 5 litre vessel. The molar concentration of hydrogen is
Can someone please help me in getting through this problem. With increase of temperature, which of the following changes: (i) Molality (ii) Weight fraction of solute (iii) Fraction of solute present in water (iv) Mole fraction.
In Einstein’s mass energy relation e = mc2 for what is c employed or why is light needed for the reactions. As the reactions are with the help of neutrons?
Help me to go through this problem. Normality of sulphuric acid is: (a) 2N (b) 4N (c) N/2 (d) N/4
Can someone please help me in getting through this problem. Concentrated H2SO4 has a density of 1.98 gm/ml and is 98% H2SO4 by weight. The normality is: (a) 2 N (b) 19.8 N (c) 39.6 N (d) 98
give all physical aspects in the production of alcohol
What type of bond does HCl encompass? Describe briefly?
18,76,764
1959453 Asked
3,689
Active Tutors
1441762
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!