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Chemistry

EN हिंदी

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NTPC Graduate Tier 1 2025 Shift-1 📅 09 Jun, 2025

How many molecules are present in 2 moles of CO₂?

A

6.022 × 10²³

B

1.2044 × 10²⁴

C

3.011 × 10²³

D

12.044 × 10²³

Result Summary

APEDIA

NTPC Graduate Tier 1

2025 • 09 Jun, 2025 • Shift-1

How many molecules are present in 2 moles of CO₂?

Correct Answer

1.2044 × 10<sup>24</sup>

Avogadro's Principle: In fundamental chemistry, one mole of any pure chemical substance consistently contains Avogadro's number of distinct elementary entities ......

💡 Analysis & Explanation

Avogadro's Principle ▼

In fundamental chemistry, one mole of any pure chemical substance consistently contains Avogadro's number of distinct elementary entities (like molecules or atoms). This universal constant is precisely 6.022 × 1023.

Mathematical Scaling ▼

The question demands the total molecular count for exactly 2 moles of Carbon Dioxide. Therefore, we must multiply the standard Avogadro constant by the factor of 2.

Execution ▼

2 × (6.022 × 1023) mathematically equates to 12.044 × 1023. Adjusting the decimal place to standard scientific notation transforms this to 1.2044 × 1024.

Conclusion ▼

There are 1.2044 × 1024 molecules present in the given sample.