The theme of the given speech is the warning for the care of the natural resources as it turn into disaster.
<h3>What is a theme?</h3>
A theme is given as the message that has been delivered with the talk, play or the speech or any other art or literature practice.
The excerpt given is comprising the speech related to the environmental issues and the warning about the proper care to be taken. It is mentioned that the resources may turn in the disaster. Thus, the theme of the excerpt is given as to take care of natural resource to stop the disaster.
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According to Ohm's law, Voltage divided by "Current" is equal to resistance.
R = V / I
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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.
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The answer would be A and it’s a good explanation of the question