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on analysis a compound of carbon, nitrogen, hydrogen and oxygen contains 60.5% carbon and 6.5%hydrogen. if 0.309g of the
1 answer
488 views
an elastic string stretched to a total Length of 30 under a load of 500N. with an additional load of 100N, the string stretches
1 answer
638 views
prepare the trading profit and loss account for the year ended 31st March 1999.
opening stock. 2,500 sales. 90,000 capital. 5,000
0 answers
408 views
What is the percentage of mass of A. Phosphorus in Ca3(PO4)2 B. Nitrogen in (NH4)3PO4?
1 answer
566 views
A binary operation is defined on a set R, of really numbers a*b=a+b+2. Find the:
a) identity element under the operation * b)
2 answers
824 views
A 240volts is applied to a primary coil of a step up transformer. What is the ratio of the secondary turn to the primary turns,
2 answers
499 views
