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
Differentiate between the modern periodic table and Mendeleevs table?
are halides are halogens more soluble? why?
Describe how dipole attractions, London dispersion forces and the hydrogen bonding identical?
Illustrate the Lewis Dot Structure for the CH4O.
Avogadro's hypothesis Law Principle- Berzelius, a chemist tried
The objective of this work is to separate a binary mixture and to cool down the bottom product for storage. (Check table below to see which mixture you are asked to study). 100 kmol of feed containing 10 mol percent of the lighter component enters a continuous distillation column at the m
In the common chemistry terminologies, aliphatic halogen derivatives are named as alkyl halides. The words, n-, sec-, tert-, iso-, neo-, and amyl are
Why oxidising character of oxoacids of halogens decreases as oxidation number increases?
In vapor-liquid equilibrium the relative volatility αij is defined to be the ratio of the separation or K factor for species i to that for species j, that is, αij = Ki/Kj
Which one is polar HCl or HF?
18,76,764
1930448 Asked
3,689
Active Tutors
1437895
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!