Discover answers to your most pressing questions at Westonci.ca, the ultimate Q&A platform that connects you with expert solutions. Connect with a community of experts ready to help you find accurate solutions to your questions quickly and efficiently. Get precise and detailed answers to your questions from a knowledgeable community of experts on our Q&A platform.
Sagot :
To find out how many atoms are present in 23 grams of sodium (Na), you can follow these steps:
1. Identify the molar mass of sodium (Na):
The molar mass of sodium is 23 grams per mole.
2. Determine the amount of substance in moles:
The amount of substance in moles is calculated by dividing the sample mass by the molar mass.
[tex]\[ \text{Moles of Na} = \frac{\text{Sample mass}}{\text{Molar mass of Na}} = \frac{23 \text{ grams}}{23 \text{ grams/mole}} = 1 \text{ mole} \][/tex]
3. Use Avogadro's number to convert moles to atoms:
Avogadro's number is approximately [tex]\(6.022 \times 10^{23}\)[/tex] atoms per mole. Since we have 1 mole of sodium:
[tex]\[ \text{Number of atoms} = 1 \text{ mole} \times 6.022 \times 10^{23} \text{ atoms/mole} = 6.022 \times 10^{23} \text{ atoms} \][/tex]
Therefore, the number of atoms in 23 grams of sodium (Na) is [tex]\(6.022 \times 10^{23}\)[/tex].
So, the correct answer is:
c. [tex]\(\quad 6.023 \times 10^{23}\)[/tex]
1. Identify the molar mass of sodium (Na):
The molar mass of sodium is 23 grams per mole.
2. Determine the amount of substance in moles:
The amount of substance in moles is calculated by dividing the sample mass by the molar mass.
[tex]\[ \text{Moles of Na} = \frac{\text{Sample mass}}{\text{Molar mass of Na}} = \frac{23 \text{ grams}}{23 \text{ grams/mole}} = 1 \text{ mole} \][/tex]
3. Use Avogadro's number to convert moles to atoms:
Avogadro's number is approximately [tex]\(6.022 \times 10^{23}\)[/tex] atoms per mole. Since we have 1 mole of sodium:
[tex]\[ \text{Number of atoms} = 1 \text{ mole} \times 6.022 \times 10^{23} \text{ atoms/mole} = 6.022 \times 10^{23} \text{ atoms} \][/tex]
Therefore, the number of atoms in 23 grams of sodium (Na) is [tex]\(6.022 \times 10^{23}\)[/tex].
So, the correct answer is:
c. [tex]\(\quad 6.023 \times 10^{23}\)[/tex]
Thank you for your visit. We're committed to providing you with the best information available. Return anytime for more. Thank you for your visit. We're dedicated to helping you find the information you need, whenever you need it. Keep exploring Westonci.ca for more insightful answers to your questions. We're here to help.