Math for Chemistry Test Review

Front

What is the correct rounding for the equation 1.987 - 0.48?

Back

1.51

Front

Which student demonstrates the highest precision in measurements?

Back

Student B

Front

How do you express -5.6 x 10^-3 in standard form?

Back

-0.0056

Front

What is the volume of liquid in a cylinder if it reads 25 mL?

Back

25 mL

Front

How do you solve for t in the equation D = rt?

Back

t = D/r

Front

What is the definition of precision in measurements?

Back

Precision refers to the closeness of two or more measurements to each other.

Front

What is the definition of accuracy in measurements?

Back

Accuracy refers to how close a measurement is to the true value.

Front

What is scientific notation?

Back

A way of expressing numbers as a product of a coefficient and a power of 10.

Front

How do you convert a number from standard form to scientific notation?

Back

Move the decimal point to create a number between 1 and 10, then count the moves to determine the exponent.

Front

What is the formula for calculating density?

Back

Density = mass/volume.