7) If you are told a line has a slope = 12 g/mL and it came from a plot using a formula of y = (B/4) x+ 12 %3D what is the value of B? Show ALL work here:

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Chapter1: Chemical Foundations
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**Educational Website Content: Transcription and Explanation**

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**Mathematics and Chemistry Problems**

7) If you are told a line has a slope = 12 g/mL and it came from a plot using a formula of \( y = \frac{(B/4) x + 12}{y} \), what is the value of B?  
Show ALL work here: ___________

8) A 0.01L (10 mL) water sample is taken from a local swimming pool and tested by a pool Lab Service for the NaCl concentration. The molarity was found to be 0.001 M (moles/Liter). The swimming pool contains 10,000 L of water in it. What is the NaCl concentration/molarity of the entire pool contents?

9) If you dispense 3.0 mL NaOH (0.050M) solution into a container holding 7.0 mL distilled water, what is the new concentration of NaOH in this new container? (Show work)

**Apparatus: Burette Reading**

10) Look at the burette image on the right and complete the blanks:  
- Initial Reading: ___________  
- Final Reading: ___________  
- Amount Dispensed: ________

**Explanation of Diagram:**

The image contains two diagrams indicating the initial and final readings in a burette:

- **Initial Reading:** The burette level starts at 1 mL.
- **Final Reading:** The burette level is at 49 mL.
- This suggests the amount dispensed from the burette is 48 mL (calculated as 49 mL - 1 mL).

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This content should aid learners in understanding how to approach basic algebra and chemistry problems related to concentration calculations, as well as interpreting apparatus readings.
Transcribed Image Text:**Educational Website Content: Transcription and Explanation** --- **Mathematics and Chemistry Problems** 7) If you are told a line has a slope = 12 g/mL and it came from a plot using a formula of \( y = \frac{(B/4) x + 12}{y} \), what is the value of B? Show ALL work here: ___________ 8) A 0.01L (10 mL) water sample is taken from a local swimming pool and tested by a pool Lab Service for the NaCl concentration. The molarity was found to be 0.001 M (moles/Liter). The swimming pool contains 10,000 L of water in it. What is the NaCl concentration/molarity of the entire pool contents? 9) If you dispense 3.0 mL NaOH (0.050M) solution into a container holding 7.0 mL distilled water, what is the new concentration of NaOH in this new container? (Show work) **Apparatus: Burette Reading** 10) Look at the burette image on the right and complete the blanks: - Initial Reading: ___________ - Final Reading: ___________ - Amount Dispensed: ________ **Explanation of Diagram:** The image contains two diagrams indicating the initial and final readings in a burette: - **Initial Reading:** The burette level starts at 1 mL. - **Final Reading:** The burette level is at 49 mL. - This suggests the amount dispensed from the burette is 48 mL (calculated as 49 mL - 1 mL). --- This content should aid learners in understanding how to approach basic algebra and chemistry problems related to concentration calculations, as well as interpreting apparatus readings.
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