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chidinma
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a compound has an empirical formula CH20 and molecular mass of 90 determine it's molecular formula(H=11; C=12; 0=16)
1 answer
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Two instances during which the heating effect of current is not required
0 answers
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A galvanometer of resistance 50 ohm which gives a full deflection for 1mA is to be adapted to measure currents up to 5A.
3 answers
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