Determining concentration in ppm
A 500 gm tooth paste sample has 0.2g fluoride concentration. Determine the concentration of F in terms of ppm level: (a) 250 (b) 200 (c) 400 (d) 1000Answer: (c) F-ions in ppm = (0.2/500) x 106 = 400
The acid value definition is the number milligrams of KOH needed to neutralize the acid present in one gram oil and fats however why not employ NaOH for the neutralization?
What are the benefits of soapy detergents over the soap less detergents? Briefly state the benefits?
What are the various illustrations of the reversible reaction? Explain briefly?
A student was analyzing an unknown containing only Group IV cations. When the unknown was treated with 3M (NH4)2CO3 solution, a white precipitate formed. Because the acetic acid bottle was empty, the student used 6M HCl to dissolve the precipitate. Following the procedure of this experiment, the stu
Provide solution of this question. A 5 molar solution of H2SO4 is diluted from 1 litre to 10 litres. What is the normality of the solution : (a) 0.25 N (b) 1 N (c) 2 N (d) 7 N
Two tanks which contain water are connected to each other through a valve. The initial conditions are as shown (at equilibrium):
The solubility of a gas in water depends on: (a) Nature of the gas (b) Temperature (c) Pressure of the gas (d) All of the above. Can someone help me in finding out the right answer.
comparison of biodegradable and non-biodegradable polymers
What is the utilization of glacial acetic acid? Briefly describe the uses.
Briefly describe the dipole moment direction for the methanol?
18,76,764
1938522 Asked
3,689
Active Tutors
1415622
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!