Chemistry
posted by Tangerine .
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

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
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Can you check my answers please? 1. A student measures the volume of a liquid and finds it to be 40ML. How many significant figures are in the measurement?