Week 2 Quiz Prep (Sci Note, Metric system, SigFigs, Applications

The density of gold is 19.30 g/mL; what is the volume of 10.123 g of gold?

How many µg are in 10.0 mg?

What is 100. km/h speed in m/s, where h represents hours?

A prescription says a dosage of 0.225 mg of Synthroid to be taken once a day. If tablets in stock contain 75 µg of Synthroid, how many tablets are needed per day?

A chemistry student rewrites the number, 0.000548600 ms, as 5.486 x 10-7 s. What is wrong with the way the student rewrote the number?

• The student has the wrong units

• The student has the wrong power of 10

• The student has the wrong sigfigs

• The student does not have the result in proper scientific notation

• The student rewrote the number correctly, there is no error

Write the metric symbol for the following metric unit or write the metric unit name for the given metric symbol: exabytes

Write the metric symbol for the following metric unit or write the metric unit name for the given metric symbol: fJ

How many significant figures does 699.06133000 have?

Express 0.000051 x 10^9 in proper scientific notation with the correct number of significant figures

Express 2680 x 10^5 in proper scientific notation with the correct number of significant figures.