hydrogen atom has a mass of 1.67 × 10-27 kilogram. The Earth has a mass of 5.972 X 1024 kilograms.
How many times greater is the mass of Earth than the mass of a hydrogen atom? Provide your answer in
scientific notation. Show your calculations, explain your steps, and interpret your results.
A globe model of the Earth has a mass of 829 kilograms



Answer :

To answer the given question, we need to determine how many times greater the mass of the Earth is compared to the mass of a hydrogen atom. Let's go through the detailed, step-by-step solution.

### Step 1: Understand the given data

- Mass of a hydrogen atom [tex]\( m_H \)[/tex] = [tex]\( 1.67 \times 10^{-27} \)[/tex] kg
- Mass of the Earth [tex]\( m_E \)[/tex] = [tex]\( 5.972 \times 10^{24} \)[/tex] kg
- Mass of the globe model of the Earth [tex]\( m_{globe} \)[/tex] = 829 kg

### Step 2: Calculate the mass ratio

To find out how many times greater the mass of the Earth is compared to the mass of a hydrogen atom, we use the following formula:
[tex]\[ \text{Mass ratio} = \frac{\text{Mass of the Earth}}{\text{Mass of a hydrogen atom}} \][/tex]

Substituting the given values:
[tex]\[ \text{Mass ratio} = \frac{5.972 \times 10^{24}}{1.67 \times 10^{-27}} \][/tex]

### Step 3: Perform the division

When dividing numbers in scientific notation, we divide the coefficients and subtract the exponents of 10:
[tex]\[ \text{Mass ratio} = \frac{5.972}{1.67} \times 10^{24 - (-27)} \][/tex]

First, calculate the division of the coefficients:
[tex]\[ \frac{5.972}{1.67} \approx 3.576 \][/tex]

Next, calculate the exponents:
[tex]\[ 10^{24 - (-27)} = 10^{24 + 27} = 10^{51} \][/tex]

Combining these results:
[tex]\[ \text{Mass ratio} \approx 3.576 \times 10^{51} \][/tex]

### Step 4: Interpretation of the results

The mass of the Earth is approximately [tex]\( 3.576 \times 10^{51} \)[/tex] times greater than the mass of a hydrogen atom.

### Step 5: Additional information

The mass of the globe model of the Earth is provided for context, but it does not affect the calculation of the mass ratio between the Earth and a hydrogen atom.

### Summary

- The mass of a hydrogen atom is [tex]\( 1.67 \times 10^{-27} \)[/tex] kg.
- The mass of the Earth is [tex]\( 5.972 \times 10^{24} \)[/tex] kg.
- The mass of the Earth is approximately [tex]\( 3.576 \times 10^{51} \)[/tex] times greater than the mass of a hydrogen atom.
- The mass of the globe model is 829 kg, which is additional context but not directly related to the calculated mass ratio.

This detailed step-by-step solution demonstrates the calculation and provides a clear interpretation of the results.