# Unknowns for 1H NMR Final Report**13) Chemical Formula:** C₁₁H₁₄O₃**IR Spectroscopy:** - Strong peak at 1720 cm⁻¹- Strong broad peak at 3300 cm⁻¹## NMR Spectrum Analysis**Diagram Description:**- **X-axis (PPM):** The chemical shift is shown in parts per million (PPM) from 0 to 9.- **Y-axis:** Represents signal intensity.### Peaks and Integration:1. **1H:** Several peaks around 7.5–8 PPM, likely indicating aromatic protons.2. **1H:** Another peak group from approximately 6.5 to 7 PPM.3. **Cluster at 5 PPM:** Shows a total integration of 2H.4. **Large Peak at 3 PPM:** Integration of 3H, possibly indicating a methoxy or similar group.5. **Another 3H Peak:** Around 1 PPM, indicating non-aromatic protons, possibly an alkyl group.The spectrum is accompanied by hand-drawn annotations indicating potential calculations related to the molecular structure.This representation aids in identifying the functional groups and structure of the compound based on its NMR and IR data.

To find the structure of the compound using NMR spectra. Chemical Formula: C11H14O3 IR: strong peak…

9 13) Chemical Formula: C₁1H1403 IR: strong peak 1720cm-1, strong broad 3300cm-¹,- 14 1 1H 1H 1H TH 1H In 7 Д ТТ Unknowns for 1H NMR Final Report -GH 16 1H 5 2H 1H C-SP H PPM 3H 2x11= 2 3H 22+2= 24-14= 10 ( 'n 11x2=22+2=24=14=10/2=S

9 13) Chemical Formula: C₁1H1403 IR: strong peak 1720cm-1, strong broad 3300cm-¹,- 14 1 1H 1H 1H TH 1H In 7 Д ТТ Unknowns for 1H NMR Final Report -GH 16 1H 5 2H 1H C-SP H PPM 3H 2x11= 2 3H 22+2= 24-14= 10 ( 'n 11x2=22+2=24=14=10/2=S

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.

Question

# Unknowns for 1H NMR Final Report

**13) Chemical Formula:** C₁₁H₁₄O₃

**IR Spectroscopy:**
- Strong peak at 1720 cm⁻¹
- Strong broad peak at 3300 cm⁻¹

## NMR Spectrum Analysis

**Diagram Description:**

- **X-axis (PPM):** The chemical shift is shown in parts per million (PPM) from 0 to 9.
- **Y-axis:** Represents signal intensity.

### Peaks and Integration:

1. **1H:** Several peaks around 7.5–8 PPM, likely indicating aromatic protons.
2. **1H:** Another peak group from approximately 6.5 to 7 PPM.
3. **Cluster at 5 PPM:** Shows a total integration of 2H.
4. **Large Peak at 3 PPM:** Integration of 3H, possibly indicating a methoxy or similar group.
5. **Another 3H Peak:** Around 1 PPM, indicating non-aromatic protons, possibly an alkyl group.

The spectrum is accompanied by hand-drawn annotations indicating potential calculations related to the molecular structure.

This representation aids in identifying the functional groups and structure of the compound based on its NMR and IR data.

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