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To find the mass of 70 cm³ of steel, we can use the formula:

\[
\text{Mass} = \text{Density} \times \text{Volume}
\]

From the problem:
- Density of steel = 7.84 g/cm³
- Volume = 70 cm³

Substitute these values into the formula:

\[
\text{Mass} = 7.84 \, \text{g/cm}^3 \times 70 \, \text{cm}^3 = 548.8 \, \text{g}
\]

So, the mass of 70 cm³ of this steel is **548.8 grams**.

Would you like more details or have any questions?

Here are 5 related questions:
1. How would the mass change if the volume was 100 cm³ instead of 70 cm³?
2. What is the volume of steel if its mass is 1 kilogram?
3. How would you calculate the density if the mass and volume were given?
4. What happens to the mass if the density of steel changes to 8 g/cm³?
5. How would you convert the mass into kilograms?

**Tip:** Always make sure the units of density and volume are consistent before multiplying.

The density of some steel is 7.84 g/cm³. What is the mass of 70 cm³ of this steel?

Learn how to calculate the mass of steel when the density is 7.84 g/cm³ and the volume is 70 cm³. This problem uses the formula Mass = Density × Volume, which is suitable for students in Grades 6-8.

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