Hey there!:
a )
number of moles of solute :
moles of solute = molarity x volume ( L )
moles of solute = 1.556 x 200.0
moles of solute = 311.2 moles of KBr
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b) Molar mass of KBr : 119.002 g/mol
1 mole KBr ----------------- 119.002 g
311.2 moles ---------------------- ( mass KBr ) ?
mass glucose = 311.2 x 119.002 / 1
mass glucose => 37033.4224 g