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Calculate the molarity of each aqueous solution with the given amount of [tex]C_6H_{12}O_6[/tex] (molar mass [tex]180.15 \frac{g}{mol}[/tex]). Ensure your answer entries have the correct number of significant figures.

Part 1 of 3

[tex]2.90 \, mol \, C_6H_{12}O_6[/tex] in [tex]0.700 \, L[/tex] solution

[tex]\boxed{ \, } \, M

[tex]\boxed{ \, } \times 10[/tex]


Sagot :

To determine the molarity of the given aqueous solution with the provided amount of [tex]$C_6H_{12}O_6$[/tex] (glucose), we follow these steps:

### Step-by-Step Solution

1. Understanding the Problem:
- We are given the number of moles of solute ([tex]$C_6H_{12}O_6$[/tex]) and the volume of the solution.
- Our task is to find the molarity, which is defined as the number of moles of solute per liter of solution.

2. Given Values:
- Moles of [tex]$C_6H_{12}O_6$[/tex]: [tex]\(2.90 \, \text{mol}\)[/tex]
- Volume of the solution: [tex]\(0.700 \, \text{L}\)[/tex]

3. Formula for Molarity:
Molarity (M) is given by the formula:
[tex]\[ \text{Molarity (M)} = \frac{\text{moles of solute}}{\text{volume of solution in liters}} \][/tex]

4. Plug in the Given Values:
[tex]\[ \text{Molarity (M)} = \frac{2.90 \, \text{mol}}{0.700 \, \text{L}} \][/tex]

5. Perform the Calculation:
[tex]\[ \text{Molarity (M)} = \frac{2.90}{0.700} = 4.142857142857143 \][/tex]

6. Significant Figures:
- The number of significant figures in the given values dictates the number of significant figures in the final answer.
- [tex]\(2.90\)[/tex] has 3 significant figures.
- [tex]\(0.700\)[/tex] also has 3 significant figures.
- Therefore, our final answer for molarity should be rounded to 3 significant figures.

7. Rounded Answer:
[tex]\[ \text{Molarity (M)} \approx 4.14 \, \text{M} \][/tex]

8. Expressing the Answer in Scientific Notation (if necessary):
- Since [tex]\(4.14\)[/tex] is not an exponential number, express it in standard form is sufficient.

9. Final Answer:
[tex]\[ 4.14 \, \text{M} \][/tex]

### Summary:
The molarity of the solution containing [tex]\(2.90 \, \text{mol}\)[/tex] of [tex]\(C_6H_{12}O_6\)[/tex] in [tex]\(0.700 \, \text{L}\)[/tex] of solution is [tex]\(4.14 \, \text{M}\)[/tex] with the correct number of significant figures.