Answer:
I belive about 3 days.
Explanation:
To the naked eye, the full moon lasts about three days, but in reality, it is a full moon for just an instant before it begins to wane. The moon takes just under one month an average of 29 1/2 days to complete its phases.
Hope this helps!
Answer:
D.)
Explanation:
The general equilibrium expression looks like this:
In this expression,
-----> K = equilibrium constant
-----> uppercase letters = formulas
-----> lowercase letters = balanced equation coefficients
In this case, all of the reactants and products are gases, so they should all be included in the expression. The products are in the numerator and the reactants are in the denominator. This makes the correct expression:
<----- Insert formulas
<----- Insert coefficients
20.91200832 g of must be dissolved in 0.504 L of a solution to make a 0.56 M solution.
What is the molarity of a solution?
Molarity (M) is the amount of a substance in a certain volume of solution. Molarity is defined as the moles of a solute per litres of a solution. Molarity is also known as the molar concentration of a solution.
Given data:
The volume of solution= 0.504 L
Molarity of = 0.56 M
Step 1: Calculating the mass of
Putting the given values in the equation.
Moles of solute = 0.28224
Molar mass of = 74.093 g/mol
Now, put the values in the formula.
Mass of =20.91200832 g
Hence, 20.91200832 g of must be dissolved in 0.504 L of a solution to make a 0.56 M solution.
Learn more about molarity here:
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In chemical reactions, elements or compounds called reactants, are changed into other substances or compounds and elements called products. You cannot change one element into another in a chemical reaction. They are both important in order to classify the reaction.