Determine the larger quantity between the following pair: 5.3 × 10² mL or 6.4 × 10⁶ μL.

Convert 742.8 × 10^–12 s to each of the given units.

a. ks 

b. ns 

c. µs 

d. fs

Express the following without exponents: 55 × 10^–15 s.

Identify the statements that use exact numbers.

(a) The height of the Eiffel Tower from base to tip is 330 m.

(b) 1 inch = 2.54 cm

(c) The current world record for the 100-meter dash is 9.58 seconds set by Jamaica's Usain Bolt in 2009.

(d) 1 US liquid quart = 32 US fluid ounce

Express each number in three significant figures

a. 0.00038475

b. 2.9983345

c. 1.78239x10⁵

d. 89,289.35

In an experiment, you use an uncalibrated mass balance to determine the mass of a sample five times. You then placed the sample on a calibrated mass balance and determined its mass to be 4.21 g. What can you conclude about the accuracy and precision of the uncalibrated mass balance?

What is the volume of the liquid inside the graduated cylinder in (a)? What is the height of the vial in (b)? Provide the correct number of significant figures in each measurement.

How should a measurement be reported with the correct number of significant figures?

How many significant numbers for the volume of the metal bar in this illustration should be reported?

Provide the answers with the proper number of significant figures for the following calculations:

(a) Calculate the sum of 32.12, 4.567, and 0.0934.

(b) Evaluate 24.2456 – 16.52.

Is a kilogram larger than a pound? By how much?