Westonci.ca is your trusted source for finding answers to a wide range of questions, backed by a knowledgeable community. Explore thousands of questions and answers from a knowledgeable community of experts ready to help you find solutions. Discover in-depth answers to your questions from a wide network of professionals on our user-friendly Q&A platform.
Sagot :
To determine how many molecules are in 4 moles of [tex]\( H_2O \)[/tex], we can use Avogadro's number, which tells us the number of molecules in one mole of any substance. Avogadro's number is [tex]\( 6.02 \times 10^{23} \)[/tex] molecules per mole.
Here is the step-by-step solution:
1. Identify Avogadro's number:
Avogadro's number [tex]\( N_A \)[/tex] is [tex]\( 6.02 \times 10^{23} \)[/tex] molecules per mole.
2. Identify the number of moles:
We are given 4 moles of [tex]\( H_2O \)[/tex].
3. Calculate the number of molecules in the given moles:
Multiply the number of moles by Avogadro's number.
[tex]\[ \text{Number of molecules} = \text{Number of moles} \times N_A \][/tex]
For 4 moles of [tex]\( H_2O \)[/tex]:
[tex]\[ \text{Number of molecules} = 4 \text{ moles} \times 6.02 \times 10^{23} \text{ molecules/mole} \][/tex]
4. Perform the multiplication:
[tex]\[ 4 \times 6.02 \times 10^{23} = 2.408 \times 10^{24} \][/tex]
So, the number of molecules in 4 moles of [tex]\( H_2O \)[/tex] is [tex]\( 2.408 \times 10^{24} \)[/tex].
The correct answer is:
B. [tex]\( 2.408 \times 10^{24} \)[/tex]
Here is the step-by-step solution:
1. Identify Avogadro's number:
Avogadro's number [tex]\( N_A \)[/tex] is [tex]\( 6.02 \times 10^{23} \)[/tex] molecules per mole.
2. Identify the number of moles:
We are given 4 moles of [tex]\( H_2O \)[/tex].
3. Calculate the number of molecules in the given moles:
Multiply the number of moles by Avogadro's number.
[tex]\[ \text{Number of molecules} = \text{Number of moles} \times N_A \][/tex]
For 4 moles of [tex]\( H_2O \)[/tex]:
[tex]\[ \text{Number of molecules} = 4 \text{ moles} \times 6.02 \times 10^{23} \text{ molecules/mole} \][/tex]
4. Perform the multiplication:
[tex]\[ 4 \times 6.02 \times 10^{23} = 2.408 \times 10^{24} \][/tex]
So, the number of molecules in 4 moles of [tex]\( H_2O \)[/tex] is [tex]\( 2.408 \times 10^{24} \)[/tex].
The correct answer is:
B. [tex]\( 2.408 \times 10^{24} \)[/tex]
Thanks for stopping by. We strive to provide the best answers for all your questions. See you again soon. Thank you for your visit. We're committed to providing you with the best information available. Return anytime for more. Westonci.ca is your go-to source for reliable answers. Return soon for more expert insights.