A sample of 2 tsp of sugar (C12H22O11) weighs 9.00 g. Record each step needed to calculate the number of moles of all elements present in the sample.

When you conducted the Charle’s Law experiment, which variables were held constant?  

What are the conjugate acids and conjugate bases of ammonia (NH3) ?

During the Lab, what did you see when you held the grating several inches from your face, and looked at it at an angle? What details did you see at the grating surface?

How does the shape, thickness, and resolution of the spectral lines change as you widen the light inlet slit? 

This questions refers to Exercise 1 in your Acid – Base Lab.  Write the chemical equation of mixing nitric acid HNO3 with water. 

The wavelength (λ) and frequency (ν) of light are related through the equation: c=λ×ν where:c= speed of light (3.00×108 m⋅s−1)λ=wavelength (m)ν=frequency (s−1)c=λ×ν where:c= speed of light (3.00×108 m⋅s−1)λ=wavelength (m)ν=frequency (s−1)   Using the following emission spectrum: Calculate the frequency for each of the Indigo (470 nm) emission lines (1 nm = 1 x 10-9 m):

When you view the spectrum, you should be able to see a spectral image to the right and left of the light inlet slit. How are the two spectral images different from each other? 

A gas sample in a Boyle’s law apparatus is compressed to a volume of 22.0 mL. If its original volume was 37.0 mL at 12,000 Pa, what is the new pressure of the gas sample. 

From Experiment 2:  Calculate the ratio of moles of H2O to moles of anhydrous KAl(SO4)2.