7) How many scans are needed to improve the signal to noise ratio (S/N) of a spectrum by a factor of 10 ?

Alejandra just finished making her hydrogen calibration curve. Her data is best described by the following equation: ?=−127.4ln(?)+715.23y=−127.4ln⁡(x)+715.23 If she observed a line in the helium spectrum that had a scale reading of 5.91 what wavelength, in nm, would this correspond to? in sig figs

c) please see attached

When doing the chart please draw it out for me . I get lost on where to fill it out

Which of these would have the largest wavelength for the lambda max

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The two nuclei in the nitric oxide (NO) molecule are 0.1154 nm apart. The mass of the most common nitrogen atom is 2.326 * 10-26 kg, and the mass of the most common oxygen atom is 2.656 * 10-26 kg. Find the moment of inertia of the NO molecule.

Part A1: Do you notice any pattern in the color of the light used to detect absorbance (preset) and the color of the solution? If so, describe the pattern. What happened to the transmittance when the wavelength being detected was changed to approximately the same color as the solution? Try to come up with an explanation for this. How does the percent transmittance of the preset wavelength compare to the percent transmittance when looking at the transmittance over the entire visible spectrum? What happened to the transmittance when the width of the sample was changed? Explain why this makes sense. Explain why there was an upper maximum on the concentrations for each solution. What would happen to the absorbance or percent transmittance of a sample above that concentration? If you needed to measure the exact concentration of a solution whose concentration is above that limit, is there anything you can do?

Find the uncertainty ox in x as a function of the uncertainties ou and oy in u and v for the following functions: (u+v) (а) х %3 2 (b) x =uv? (c) x= u? +v?

Based on the picture where is the lambda max and among all samples who is the highest wavelength? What can you conclude to the data and how can you know the spectral properties of indigo C16H10N2O2 to that graph