Cálculos
KH2PO4 0.2M
100ml
M= g soluto
PM
K 1X 39=39
H2X1=2
P1X31=31
O4X16=64
136g/mol
G soluto=(136g/mol)(0.2mol/L)(0.1L)=2.72g
NaOH 0.2M
Na1x23=23
O1X16=16
H1X1=1
40 g/mol
G soluto(40g/mol)(0.2mol/L)(0.1L)=0.8g
C6H5O7 0.05M
C6X12=72
07X16=112
H8X1=8
192g/mol
G soluto=(192g/mol)(0.05mol/L)(0.1L)=0.96g
Na3c6H5O7 0.05M
Na3X23=69
C6X12=72
H5X1=5
O7X16=112
258g/mol
g soluto(258g/mol)(0.1L)(0.05mol/L)=1.29 g
HCl 0.2M
Cl1X36=36
H1X1=1
37g/mol
G soluto(37g/mol)(0.2mol/L)(0.1L)=074 g
Na2HPO4 0.2M
Na2X23=46
H1X1=1
P1X31=31
04X16=64
142g/mol
G soluto=(0.2mol/L)(142g/mol)(0.1L)=2.84g
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