there are 5 significant figures
3 of them.
0.320g has three significant figures. A significant figure is any non-zero digit or any embedded or trailing zero. Leading zeros are not significant.
Two significant figures the measurment 0.0255 g should be reported as 0.026g
2 significant figures.
5 of them.
3 of them.
0.0645g to two significant figures is 0.065g
There are 2 significant figures in this measurement.
That measurement has 4 significant figures. It could also be stated as 1.580 x 10^-3.
0.320g has three significant figures. A significant figure is any non-zero digit or any embedded or trailing zero. Leading zeros are not significant.
11225 g rounded to 3 significant figures is 11200g
Two significant figures the measurment 0.0255 g should be reported as 0.026g
2 significant figures.
2 significant figures.
52 g Be x 1 mol/9 g = 5.8 moles (2 significant figures)
78 g
2 of them.