Answer:
0.25M
Explanation:
Since molarity is defined as the amount of substance in 1 liter of a solution, and amount in chemistry refers to the number of moles, molarity can be found using the equation below:
Molarity= number of moles ÷ volume in liters
Given: number of moles= 2
Volume= 8L
∴ Molarity of NaCl
= 2 ÷8
= 0.25M
Answer:
The basicity of HCOOH (otherwise known as formic acid) is 1
Explanation:
I believe it would actually be a C. Solution as the contents needed to make coffee are well mixed and have been fully dissolved in the solvent.
Anhydrous calcium chloride is hygroscopic and can attract water from the atmosphere. After anhydrous calcium chloride gets water, it will become hydrous calcium chloride. This allows the a<span>nhydrous calcium chloride to reduce water vapor continuously in the air-tight sealed container. It can be used to protect substance that can react with water or preserve food by lowering the humidity.</span>
Use the following equations to fill the chart.
E = hf
where
h = 6.63 x 10⁻³⁴ J/s, Planck's constant
f = frequency Hz
E = quanta of energy, J
c = fλ
where
c = 3 x 10⁸ m/s, the velocity of light
λ = wavelength, m
If energy is given in J/mmol, divide by Avogadro's number, N = 6.02 x 10²³, to convert it to J.
The completed table is shown below.