There is 1 significant figure in this measurement.
The number of significant figure is 5
23
2 Except that the fact that the figure is given as 3300 g instead of 3.3 kg suggests that the trailing 0s are significant.
5 g NaCl x 1 mol/58.5 g NaCl = 0.085 moles = 0.09 moles (to 1 significant figure)
2 significant figures.
2 significant figures.
2 significant figures.
Three - zeros between significant digits are significant.
five
Three
5