Answer
0.0011-mole chlorophyll has a greater mass.
Work Step by Step
$Number of moles \times Molecular mass$ = Given mass in grams
Molecular mass of $C_{55}H_{72}MgN_{4}O_{5} = 55 \times 12 + 72 \times 1 +1 \times 24.3 + 4\times 14 +5 \times 16 = 892.3 g$
Therefore, given mass in grams = $ 0.0011 \times 892.3 = 0.98 g $
Hence 0.0011-mole chlorophyll has a greater mass.
