During the time 0.325 mol of an ideal gas undergoes an isothermal compression at 22.0∘c, 352 j of work is done on it by the surr
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Answer:
The correct option is: C. 250 K
Explanation:
Given: <em><u>Before Sublimation-</u></em>
Initial Temperature: T₁ = 300 K, Initial Pressure: P₁ = 1 atm, Initial number of moles of gas: n₁ = 1 mol, given mass of solid Carbon dioxide: w = 88 g
<u><em>After Sublimation- </em></u>
Final Pressure: P₂ = 2.5 atm, Final number of moles of gas: n₂ = ? mol
Final Temperature: T₂ = ? K,
Also, Volume is constant, Molar mass of Carbon dioxide: m = 44 g/mol
As we know,
<em>The number of moles:</em>
<em>So the number of moles of carbon dioxide sublimed:</em>
<em><u>Therefore, the final number of moles of gas after sublimation:</u></em>
<u><em>According to the </em></u><u><em>Ideal gas equation</em></u><u><em>:</em></u>
<em>Since the volume is constant, so the equation (1) can be written as:</em>
<u>Therefore, the final temperature: T₂ = 250 K</u>
Answer : The complete chemical equation is,
Explanation :
As we know that, in a chemical equation the reacting species present on left side and the product formed present on right side and a right arrow inserted between the reactants and product that show a chemical reaction taking place.
In the chemical reaction, the phases of the substances are also included and subscripts and superscripts are also used for the numbers.
For the given chemical reaction, the balanced chemical equation including the phases, is given by:
Answer: The millimoles of sodium carbonate the chemist has added to the flask are 256
Explanation:
Molarity is defined as the number of moles dissolved per liter of the solution.
To calculate the number of moles for given molarity, we use the equation:
.....(1)
Molarity of solution = 1.42 M
Volume of solution = 180.0 mL
Putting values in equation 1, we get:
Thus the millimoles of sodium carbonate the chemist has added to the flask are 256.