Answer: The pressure of a gas will increase when there is a decrease in the volume of the gas.
Explanation: according to Boyle's law, the volume of a gas will decrease when the pressure is increased at constant temperature and vice versa.
Answer:
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<em>a) Balanced chemical equation:</em>
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<em> </em>
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<em>b) Theoretical yield:</em>
c) % yield:
Explanation:
The complete question is:
<em>In a particular reaction 6.80g of dinitrogen trioxide gas (N₂0₃) was actually produced by reacting 8.75g of oxygen gas (O₂) with excess nitrogen gas (N₂)</em>
<em>a) Write a balanced chemical equation for the reaction. Be sure to include physical states in the equation.</em>
<em>b) Calculate the theoretical yield (in grams) of dinitrogen trioxide: Use dimensional analysis</em>
<em>c) Calculate the % yield of the product</em>
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<h2>Solution</h2>
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<em>a) Write a balanced chemical equation for the reaction. Be sure to include physical states in the equation.</em>
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<em> </em>
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Check the balance:
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Atom Left-handside Right-hand side
N 2×2=4 2×2=4
O 3×2=6 2×3=6
- Mole ratio: it is the ratio of the coefficients of the balanced equation
![\dfrac{2molN_2O_3}{3molO_2}](https://tex.z-dn.net/?f=%5Cdfrac%7B2molN_2O_3%7D%7B3molO_2%7D)
<em>b) Calculate the theoretical yield (in grams) of dinitrogen trioxide: Use dimensional analysis</em>
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<u>1. Convert 8.75 g of O₂(g) to number of moles</u>
- number of moles = mass in grams / molar mass
- molar mass of O₂ = 15.999g/mol
- number of moles = 8.75g / 15.999 g/mol = 0.5469 mol O₂
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<u>2. Use dimensional analysis to calculate the maximum number of moles of N₂O₃(g) that can be produced</u>
![\dfrac{2molN_2O_3}{3molO_2} \times 0.5469molO_2=0.3646molN_2O_3](https://tex.z-dn.net/?f=%5Cdfrac%7B2molN_2O_3%7D%7B3molO_2%7D%20%5Ctimes%200.5469molO_2%3D0.3646molN_2O_3)
<u>3. Convert to mass in grams</u>
- mass = number of moles × molar mass
- molar mass of N₂O3 = 76.01g/mol
- mass = 0.3646mol × 76.01g/mol = 27.7g N₂O3
<em>c) Calculate the % yield of the product</em>
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Formula:
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- %yield = (actual yield/theoretical yield)×100
Substitute and compute:
- % yield = (6.80g/27.7g)×100 = 24.5%
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Either B or C
Explanation ;
Hydrofluoric acid is listed in Table 10 as a weak acid; therefore, it is not very dangerous to handle. False.The correct litmus test for an acid is<span>: blue litmus turns red. Choose the strongest acid. Choose the strongest acid. A characteristic of acids is that they react with metals to: release hydrogen gas. When acids react with .</span>
Answer:
The periodic table is organized into groups (columns) and periods (rows).
Explanation:
The periodic table is organized into groups (columns) and periods (rows). The first ones contain those elements that have the same valence and have similar characteristics to each other. Example: group IA have valence 1 (they require 1 electron to reach the octet). The exception to this are the noble gases located in the last group to the right of the table, which have already filled their last energy level.
Periods have elements that have the same number of orbitals and have different properties; although the masses are similar.