Answer:
<h2>3.25 </h2>Explanation:
The pH of a solution can be found by using the formula
From the question we have
We have the final answer as
<h3>3.25 </h3>Hope this helps you
Why is granite speckled
2 answers:
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Answer:
kJ/mol
Explanation:
Given and known facts
Mass of Benzene grams
Mass of water grams
Standard heat capacity of water J/g∙°C
Change in temperature ΔT °C
Heat
Heat released by benzine is - 7.82 kJ
Now, we know that
grams of benzene release
kJ heat
So, g benzine releases
kJ/g
mol C6H6
Heat released
kJ/mol
Answer:
Volume of = 15.31 mL
Volume of = 4.69 mL
Explanation:
Given that:
the density of the mixture = 1.82 g/mL
From the density of the pure samples
The density of = 1.492 g/mL
The density of = 2.890 g/mL
The total volume of the liquid mixture = 20.0 mL
Suppose the volume of = P ml
and the volume of = Q ml
the sum of their volumes should be equal to the total volume of the mixture
----- (1)
However, we know that Density = mass/volume
∴ mass = density × volume
The equation can now be expressed as:
1.492 g/mL × P mL + 2.890 g/mL × Q mL = 1.82 g/mL × 20 mL ---- (2)
From equation (1) ;
let Q = 20 - P
The replace the value of P into equation (2)
1.492 g/mL × P mL + 2.890g/mL × (20 - P) mL = 1.82 g/mL × 20 mL
1.492 P g + 57.8g - 2.890 P g = 36.4g
1.492 P g - 2.890 P g = 36.4g - 57.8g
-1.398 P g = -21.4g
P = -21.4g/-1.398g
P = 15.31 mL
Q = 20 - P
Q = (20 - 15.31) mL
Q = 4.69 mL
∴
Volume of = 15.31 mL
Volume of = 4.69 mL