<span>he density of a material is defined as its mass per
unit volume. In this example, each volume of water is different and
therefore has a specific and unique mass. The mass of water is expressed
in grams (g) or kilograms (kg), and the volume is measured in liters (L), cubic centimeters (cm 3), or milliliters (mL).</span>
Molar mass of CeCl3 = 246.475 g/mol
This compound is also known as Cerium(III) Chloride.
Convert grams CeCl3 to moles or moles CeCl3 to grams
Molecular weight calculation:
140.116 + 35.453*3
From the information give, I'm going to assume the wave is in a vacuum...
You use the equation: f=

where c is the constant for speed of light (

so f=

f= 4.89 x

Hz (approximately)
In the RGB color model, each color is represented by a numerical code that is written in parentheses and separated by commas.
<h3>What is the RGB model?</h3>
RGB is a color model with which it is possible to represent a color by mixing by adding the three primary colors of light.
A special feature of this model is that it is not a reference point for defining the color red, green, or blue because the same RGB values can display noticeably different colors on different devices.
To form a color, it must be taken into account that in the RGB model the incidence of each color (red, green or blue) is measured on a scale that goes from 0 to 255.
These values are represented in parentheses, separated by commas as shown in the image below:
Learn more about RGB in: brainly.com/question/19262252
It is acidic because it has the Carboxylic Acid.