Posted by Tangerine on .
It says to perform the following calculations and express your answers in the correct units and number of significant figures.
2.8g/6.86 times 10^3 l
45.68g
+3.8 g
1423 mL
 40mL

Chemistry 
bobpursley,
The first one is to two sig digits.
The second one is sig to the tenths place
the third one is sig to the tens place
1380ml