# Plzzz give me tge answer of question no 23 24 27

1
by tariquekhan123456
plzzz give the correct answer its very imporatnt

2016-03-20T20:00:45+05:30

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23>a)aluminium sulphate
b)calcium chloride
c)barium sulphate
d)amonium chloride.

24> 49.7*79 + 50.3*81 /100 * 100
=3926.3 + 4074.3 / 100 * 100
=8000.6 / 1000
=80.006 u
=80 u (approx)

27> a) SO4  is the polyatomic ion.
MOLAR MASS(MgSO4) = 24+32+16*4
=56+64
=120 u

b)CO3 is the polyatomic ion.
MOLAR MASS(Na2CO3)=23*2+12+16*3
=46+12+48
=106 u

PLS MARK IT A BRAINLIENT ANSWER!!!!
first tell me that molar mass unit is g per mole right so why are u writing u
yes but according to latest iupac u is the unit while calculating molar mass
now pls mark it brainlient ans