The mass of the acetic acid is 1.512 g.
<h3 /><h3>What is Molarity?</h3>
molarity is the concentration of a substance in mol per dm³
From the question,
The number of moles contained in the 30 mL vinegar is
- n = (0.84×30)/1000
- n = 0.0252 mol.
the molar mass of vinegar is calculated below.
- m.m of (HC₂H₃O₂) = [1+(12×2)+(1×3)+(16×2)]
- m.m = (1+24+3+32]
- m.m = 60 g/mol.
To calculate the mass of acetic acid, we use the formula below.
- R.m = n×m.m............. Equation 1
Where
- R.m = mass of acetic acid.
Substitute these values into equation 1
- R.m = (0.0252×60)
- R.m = 1.512 g.
Hence, The mass of the acetic acid is 1.512 g.
Learn more about molarity here: brainly.com/question/20383725
Answer:
Both reactivity and electronegativity decrease down a group.
I'm assuming this is multiple choice...
Explanation:
The point
is on the graph.
<h3>Procedure - Inverse variation</h3><h3 /><h3>Inverse variation model</h3><h3 />
An <em>inverse</em> variation is represented by the following formula:
(1)
Where:
- Independent variable.
- Dependent variable.
- Proportionality constant.
We can eliminate the proportionality constant by creating the following relationship:
(2)
<h3>Determination of another point</h3>
If we know that
,
and
, then the remaining variable is:


The point
is on the graph. (Correct choice: C) 
To learn more on inverse variations, we kindly invite to check this verified question: brainly.com/question/4838941
<h3>Remark</h3>
The statement is incomplete. Complete form is described below:
<em>Point </em>
<em> is on the graph of an inverse variation. Which of the following ordered pair is on the graph? </em><em>A.</em><em> </em>
<em>, </em><em>B.</em><em> </em>
<em>, </em><em>C.</em><em> </em>
<em>, </em><em>D.</em><em> </em>
<em>.</em>
Answer:
D) The term with a coeffiecient is 20w
Explanation:
5000 is not a variable
A constant is a number that is not changed by the variable.
w is a variable, not a coefficient