Answer:
0.1667
Explanation:
Hello,
Dalton's law defines:

A total pressure is:

So, for A (solving for
in the previous equation, we get:

Since
, we obtain:
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Best regards.
Answer:

Explanation:
From the question we are told that:
Density of acetic acid 
Density of Water 
Generally the equation for Solution Density is mathematically given by




The correct answer is + 32.5 J because heat is absorbed here by copper not evolved also after calculation we will find the H value is positive, lets calculate it:
H = m C Δt where:
m = 10 g
C = 0.13 J/g.°C
Δ t = final temperature - initial temperature = 50 - 25 = + 25 °C
so H = 10 x 0.13 x (+25) = + 32.5 J
R is the mixture formed by adding 5 g of sugar to 1 L of water.
<h3>Which is a mixture?</h3>
A mixture is an impure substance made up of two or more substances which are miscible or immiscible in each other.
Dissolving the sugar in the water makes a homogenous mixture and once dissolved a solution is made by the combination of a solute (sugar) and solvent (water).
Hence, R is the mixture formed by adding 5 g of sugar to 1 L of water.
Learn more about the mixture here:
here:brainly.com/question/17247700
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They will attract each other. Similar to the saying opposites attract.