Answer: a) 90.5g
b) 33.6 L
Explanation:-
Molar mass of tyrosine [tex](C_9H_{11}NO_3)[/tex]= 181 g/mol
According to Avogadro's law, 1 mole of every substance weighs equal to its molar mass.
1 mole of tyrosine [tex](C_9H_{11}NO_3)[/tex] weighs = 181 g/mol
0.5 moles of tyrosine [tex](C_9H_{11}NO_3)[/tex] weigh [tex]=\frac{181g/mol}{1}\times 0.5moles=90.5g[/tex]
b) According to Avogadro's law, 1 mole of an ideal gas occupies 22.4 Liters at Standard conditions of temperature and pressure (STP).
1 mole of gas at STP occupy = 22.4 L
1.5 moles of gas at STP occupy =[tex]\frac{22.4L}{1}\times 1.5=33.6L[/tex]