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
Can you please illustrate that HCl is polar or non-polar? Briefly illustrate it.
Differentiate between the modern periodic table and Mendeleevs table?
Drugs are broadly classified into following types depending on the purpose for which they are used. 1. Antipyretics
Describe the importance of organic chemistry?
IN GAS PHASE, BASICITIES OF THE AMINES IS JUST OPPOSITE TO BASICITY OF AMINES IN AQEUOUS PHASE .. EXPLAIN
It may be prepared by the action of phosphorus on thionyl chloride.P4 + 8SOCl2 4
C-X bond length in halobenzene less then C-X bond lengthin CH3-x
bif3 is ionic while other trihalides are covalent in nature
Ion Selective Electrodes An ion selective membrane can be used to form an electrochemical cell whose emf depends on the concentration of that ion. Before we proceed to an important application of emf measurements, brie
Briefly define the term oxidizing agent?
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