What is the molarity of 56.0 g NaCl in a 2.00 L solution?
0.48 M
A solution has a molarity of 2.00. How many milliliters are needed to make 200 mL of 1.50 M?
150 mL
How many nanometers are in a meter?
10^9 nanometers
Do polar or nonpolar solution components travel farther up a nonpolar stationary phase?
Nonpolar
What type of radiation has a wavelength of 1000 nm?
Infrared
What is the molarity of 9.34 g CO2 in a 550.0 mL solution?
0.39 M
What volume of 2.00 M NaCl is required to make 450 mL of 1.30 M solution?
293 mL
What is molarity equal to?
moles solute/L solution
A piece of filter paper with a pigment sample is dipped into Hexane. The pigment sample separates. Blue can be seen further up the paper than red. Which of the colors are polar?
Red is more polar than blue.
Are wavelength and frequency directly related?
No, they are indirectly related.
How many moles of NaOH are in 6.00 L of a 3.30 M solution?
19.8 moles NaOH
What is the molarity of 600 mL of 2.00 M KNO3- after 500 mL are added?
1.09 M
How is dilution calculated?
M1V1 = M2V2
Should the ink spot be placed above or below the solution on the filter paper as to avoid improper ink dispersion?
Above the solution.
A wavelength is 675 nm. What is the frequency of the radiation?
4.44 x 10^14 Hz
How many grams of KCl are in 300.0 mL of a 5.00 M solution?
112 g KCl
What is the molarity of 450 mL of 3.23 M CuSO4 after 100 mL are added?
2.64 M
What is the variable "c" equal to?
3.0 x 10^8 m/s
In what type of molecule would NaCl not dissolve?
A nonpolar molecule.
What is the energy of a photon with a wavelength of 1400 nm?
8.54 x 10^4 J
How many grams of MgO2 are in 670.0 mL of a 4.20 M solution?
158 g MgO2
You need to make 30.0 L of 2.8 M NaCl. What would the molarity be if only 16.0 L were used?
5.25 M
What is Planck's constant?
6.63 x 10^-34 J(s)
Is CH4 able to dissolve in water?
No, since CH4 isn't polar
What is the Δ E for the n=3 to the n=2 transition in Hydrogen?
-3.03 x 10^-19 J