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Dimensional Analysis and Scientific Notation Quiz

Authored by Joao Pinto

Professional Development

Professional Development

Dimensional Analysis and Scientific Notation Quiz
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13 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a correct conversion factor for milliliters to liters?

1 mL = 100 L

1 mL = 0.001 L

1 mL = 0.01 L

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is scientific notation useful in chemistry?

It simplifies calculations involving very large or very small numbers.

It avoids the need for using significant figures.

It eliminates the need for conversion factors.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Convert 25.0 grams to kilograms.

0.025 kg

2.50 kg

250 kg

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A chemistry student needs to convert 5.3 km to meters. Which of the following conversion factors should they use?

1 km=10 m

1 km=1,000 m

1 km=100 m

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following best explains why dimensional analysis is important in chemistry?

It ensures correct unit conversions in chemical calculations.

It reduces the number of calculations required for an experiment.

It replaces the need for balanced chemical equations.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Convert 2.5 moles of a substance to particles using Avogadro’s number (6.022×10^23 particles/mole).

1.505×10^24 particles

6.022×10^23 particles

2.5×10^23 particles

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A sample has a volume of 1500 mL. Convert this to liters.

1.5 L

15 L

0.15 L

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