Insulin forms crystals of orthorhombic type with unit cell dimensions of \( 12.5 \times 8.0 \tim...

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Insulin forms crystals of orthorhombic type with unit cell dimensions of \( 12.5 \times 8.0 \times 3.0 \mathrm{~nm}^{3} \). If the density of the crystal is \( 1.5 \times 10^{3} \mathrm{~kg} / \mathrm{m}^{3} \) and there are six insulin molecules per unit cell, the molar mass of insulin (in \( \mathrm{kg} / \mathrm{mol} \) ) is \( \left(N_{\mathrm{A}}=6 \times 10^{23}\right) \)
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