Significant digits volume

There arc only two significant digits since the subtraction yields an answer with two significant digits. That answer limits the final volume to two significant digits. 

This value must be rounded off to three significant digits after the decimal point because this is the lowest precision of the added values. The four is an exact number. This means rounding downwards to 3.460 g, eliminating choices C and D. The volume of the collected stones is found from the increase in the level read off the cylinder ... 

What if you were able to measure the volume of water in the Great Lakes You could verify the value of 22 700 km3. Then all five digits (including the zeros) would be significant. Here again, scientific notation lets you show clearly the five significant digits 2.2700 x 104 km3. 

A student measured a regularly shaped sample of iron and found it to be 6.78 cm long, 3.906 cm wide, and 11 cm tall. Determine its volume to the correct number of significant digits. 

You need to calculate the volume of the iron sample. Then you need to write this volume using the correct number of significant digits. 

A plumber installs a pipe that has a diameter of 10 cm and a length of 2.4 m. Calculate the volume of water (in cm3) that the pipe will hold. Express your answer to the correct number of significant digits. Note The formula for the volume of a cylinder is V = nr2h, where r is the radius and h is the height or length. 

Since the least number of significant digits in the question is three, the final volume will be reported to three significant digits. 

Calculate the length of each side of a cube that has a volume of 74.3 cm. (Be sure to use the proper units and the proper number of significant digits.)... 

To check your answer, calculate the volume of reactant nitrogen at STP. Then, use molar volume and the mole ratio between N2 and NH3 to determine how many moles of NH3 were produced. You can convert the answer to grams using the molar mass of NH3. All data was given in three significant digits as is the answer. 

Now, our answer no longer claims to be more accurate than the measurements that it was based on. Figure 2-4b illustrates the rule for rounding after multiplication. Each of the measurements showed only three significant digits, so the calculated volume could only show three significant digits. 

But mass and volume are measured with different tools, which may have different accuracies. Therefore, the derived quantity can have no more significant digits than the least accurate measurement used to compute it. 

The calculator delivered 10 digits, but we round the volume to 37.1 m, since the factor with the fewest significant digits has three significant digits. ... 

We give the answer to four significant digits, because both the pressure and the amount of gas are specified to four significant digits. We can now make an additional conversion to express the volume in liters ... 

The energy 0 is the configurational energy of the N molecules in the specific positions and orientations s and coN. The term S is a differential volume element in the scaled coordinates of the simulation box. The magnitude of 3 is determined by the number of significant digits on the computer. We now consider the system undergoing a set of reactions that take the system from state to a new state n. The composition of state n is related to... 

Radium-226 (atomic mass = 226.025402 amu) decays to radon-224 (a radioactive gas) with a half-life of 1.6 x 10 years. What volume of radon gas (at 25.0 °C and 1.0 atm) does 25.0 g of radium produce in 5.0 days (Report your answer to two significant digits.)... 

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