We need to calculate the volume of Gold, assuming its mass matches that of copper.
Given information:
Density of Copper = 8.96 g/ml.
Volume of Copper = 141 ml.
Mass of Gold = Mass of Copper.
Density of Gold = 19.3 g/ml.
To find copper's mass, we use the density equation:
Density = mass/volume.
To find mass of copper:
Mass of copper = Density of Copper * Volume of Copper.
Mass of copper = 8.96 g/ml * 141 ml = 1263.36 g.
Thus,
Mass of gold = Mass of copper = 1263.36 g.
Now, using the density formula for gold to get its volume:
Volume of gold = Mass of gold / Density of gold.
Volume of gold = 1263.36 g / 19.3 g/ml = 65.46 mL.
Consequently, the volume of gold required to match the mass of copper is 65.46 mL.
Answer: The change in enthalpy will be -13.
Explanation:-
Endothermic reactions absorb heat, while exothermic reactions release heat. In the case of an endothermic reaction, the change in enthalpy is represented as positive, whereas for an exothermic reaction, it is negative.
When one mole of A combines with one mole of B to form three moles of C
So the stoichiometric ratio being halved also results in the enthalpy for the reaction being halved.
Thus, for this reaction:
The resulting change in enthalpy is -13.
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I hope this is useful!!
The answer is that the diamond's volume measures 0.063 ml.
With a density of d(diamond) = 3.51 g/ml, and a mass of m(diamond) = 1.11 carat, with 1 carat being equivalent to 0.2 grams, we convert m(diamond) to grams: m(diamond) = 1.11 carat·0.2 gram/carat, which gives m(diamond) = 0.222 g.
To find the volume: V(diamond) = m(diamond) ÷ d(diamond), which results in V(diamond) = 0.222 g ÷ 3.51 g/ml = 0.063 ml.
