Math for Chemistry Practice

8 problems · instant feedback · full explanations

Chemistry runs on math: scientific notation for tiny and huge numbers, logarithms for pH, significant figures for honest precision, and unit conversions everywhere. These eight problems sharpen all four skills.

Q1.
Evaluate (2.0 x 10^3)(3.0 x 10^2).

Numerical answer · Easy

Q2.
The base-10 logarithm log10(1000) equals:

Multiple choice · Easy

Q3.
The measurement 0.00450 has three significant figures.

True / False · Easy

Q4.
Convert 2.50 km to meters.

Numerical answer (m) · Easy

Q5.
1.23 x 10^-2 written as a decimal is:

Multiple choice · Easy

Q6.
Trailing zeros to the right of a decimal point are significant.

True / False · Easy

Q7.
How many significant figures are in 100.0?

Numerical answer · Easy

Q8.
The natural logarithm ln(e^2) equals:

Multiple choice · Medium

Math for Chemistry Practice

Q1. Evaluate (2.0 x 10^3)(3.0 x 10^2).

Q2. The base-10 logarithm log10(1000) equals:

Q3. The measurement 0.00450 has three significant figures.

Q4. Convert 2.50 km to meters.

Q5. 1.23 x 10^-2 written as a decimal is:

Q6. Trailing zeros to the right of a decimal point are significant.

Q7. How many significant figures are in 100.0?

Q8. The natural logarithm ln(e^2) equals: