Why we have to add 200mg Na2CO3 in preparation of 0.1N sodium thiosulfate solution?
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An atom has 18 protons and 22 neutrons. Tell me its mass number?
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why using HCLO4 in potentiometry?. what are the chacterestics of HCLO4.
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Why sucrose used in calibration of polarimeter
Explain how do you separate the colors of ink?
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Name the element which has the following ground-state electron configuration: 1s22s22p6?
Define ph?
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Explain why do some medications contain hcl?