To write 1042 L to two significant figures, you'll need to use scientific notation. It can't be 1000 L, because that has only one significant figure, because trailing zeros with no decimal point are not significant. To write 1042 L to two significant figures, you need to write it as 1.0 × 10³ L.
It already is rounded to three significant figures.
The most accurate answer is 0.2 mol/kg.Related Information:The number of significant figures in the final answer must be based on the given with the least number of significant figures which is 2L.
Density= mass/volume. D= 3.0g/1.0L D= 3.0g/L Make sure you write 3.0g/L and not just 3 so that you have the right number of significant figures. Also, make sure that your instructor wants the answer in g/L because density is usually measured in g/mL.
You solve this using the ideal gas law: PV = nRT and solve for n (moles)n = PV/RT = (2.62 atm)(47.8 L)/(0.0821 Latm/Kmol)(775K) n = 1.97 moles (3 significant figures)
There are 3 significant figures in this measurement.
There are 3.
There are three.
Four.
3.134
4 of them.
The answer should have three significant figures since the divisor (3.42) has three significant figures. Therefore, the result of the division, 13.3669590643 kg/L, should be rounded to three significant figures, which is 13.4 kg/L.
Significant figures are calculated using various rules.ÊAll non-zero numbers are significant and all zeros that are to the right of the decimal point as well as at the end of a number are significant.ÊTherefore, 1.050L has 4 significant figures.
98.5 L
0.0004 has one significant figure.
9
To write 1042 L to two significant figures, you'll need to use scientific notation. It can't be 1000 L, because that has only one significant figure, because trailing zeros with no decimal point are not significant. To write 1042 L to two significant figures, you need to write it as 1.0 × 10³ L.