calculate the molecular mass a)Na2so4+ 10H2o (b) (NH2)2 CO (c) Mg3N2 (d) CaSO4 (e) MgCl2. (Atomic mass of Na = 23, S= 32, O =16 ,H= 1 ,N= 14, C=12 , Mg=24 , Ca=40 , Cl = 35,5)
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Probability is the branch of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true. The probability of an event is a number between 0 and 1, where, roughly speaking, 0 indicates impossibility of the event and 1 indicates certainty.
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