A gas expands and does P-V work on the surroundings equal to 325 J. At the same time, it absorbs 127 J of heat from the surroundings. Calculate the change in energy of the gas

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Q: What is the vapor pressure of a pure sample of water at 37∘C, if a 0.50Msolution of BaCl2 ​has a…

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Q: The correct name for the compound given above is which of the following? Cyclopent-1,3-ene…

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A: Molarity is a measure of the concentration of a solution, expressed as the number of moles of solute…

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Q: Complete each of the following statements for a molecule of SbCl3: Drag the terms on the left to the…

A: we have to fill the missing boxes for the SbCl3 molecule

Q: - Roadmap Problem Identify compounds A-E. H₂CRO4 C D 1) Hg(OAc)2, H₂O 2) NaBH4 HgSO4 H₂SO4, H₂O H B…

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A: Recall the given chemical reaction,                                      2 NaOH aq  +  H2SO4 aq  →…

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Q: 3) Predict the products of the following reactions: a) Y b) c) Br Mg Ether Mg Ether (N) H₂O 1. 2x…

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Q: . Draw the bond line structure for each compound (a. and b.) below 2. What are the fragment ions…

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Q: Figure 3-9. 100 D 4000 100 50 (715) 100 4000 50 4900 m www A 3000 3000 3000 B 2000 2008 C 2000…

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Q: Chlorofluorocarbons (CFCs) such as CF₂Cl₂ are refrigerants whose use has been phased out because of…

A: Answer: This question is based on energy conservation where heat lost by water will be gained CF2Cl2…

Q: The units for the rate constant for a zero order reaction are A) S-¹ B) M-¹s¹ C) M. s-¹ D) M-²S-¹ T

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Q: Using the table of standard formation enthalpies that you'll find under the ALEKS Data tab,…

A: The given reaction is as follows: C2H2(g) + 2H2(g) →C2H6(g) The enthalpy of reaction = ?

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Q: < 2:19 A) S-¹ B) M S-¹ What are the units for the rate constant of a first-order reaction? C) M-¹ s¹…

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Q: 1. Draw the mechanism for the following reactions. -CH3 Br₂, Nal a. b. c. H3C H3C CH3 CH3 CH₂ H. H_O…

A: Alkenes undergo addition reaction when treated with bromine , H+/H2O and HcL reagents.  “Since you…

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Q: A 22.0 g sample of pure iron at 85 °C is dropped into 73 g of water at 20. °C. What is the final…

A: Mass of pure iron sample = 22.0 g Initial temperature of pure iron sample = 85o C  Mass of water =…

Q: Balance the equation 235U+n→?+Zr+2n. O Te None of the above O 135 Sn 50 O Sn 50 O Te

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Q: Reaction 2: Balanced Reaction Equation List of substances added to centrifuge tube: AND Amount of…

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Q: If for the reaction, ax + bY --> products, the rate law is determined to be r=K[X]¹[Y then the order…

A: Given: r = [X]1[Y]2 To determine order of the reaction

Q: 4. Draw the mirror image, enantiomer, for each molecule.

A: Stereoisomers: If the isomers have the same molecular formula and the same bond connectivity but the…

Q: A OA OB OC Br OE Br NBS light All of them are possible products Br Products D Br Br.

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Q: Suppose you performed a similar experiment using cyclohexane as your solvent. Given the data in the…

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Q: Determine the concentration of an HBr solution if a 50.00 mL aliquot of the solution yields 0.5745 g…

A: Given , mass of AgBr added = 0.5745 g Ksp(AgBr) = 5.0×10-13

Q: 1. If I want to make a buffered solution at pH 7.4, which of the following acids would be the best…

A: For the buffer solution, Henderson equation is pH = pKa + log [salt][acid]

Q: oxidation number of the transition metal ion in K2 Febr4   Cu+ with CH3CN to form a coordination…

A: The given question is related to transition metals. This question has three subparts. In one…

Q: Thermodynamic parameters (here the activation energy, enthalpy and entropy) for the release of a…

A: The given data The change in enthalpy, ∆H = -23.6 KJ/mol The change in entropy, ∆S = 59.9 J/K-mol…

Q: if a sample of wood and the same mass of water were placed in direct sunlight for 6 hours, which one…

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Q: Which of the following compounds is a secondary alcohol? 2-methylbutan-2-ol Pentan-1-ol Pentan-2-ol…

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Q: What mass of KBr is present in 54.92 g of 14.2% (m/m) KBr solution?

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Q: How much heat must be supplied to 36 g of ice at -21°C to convert it to steam at 152°C? (Specific…

A: we have to calculate the heat need to heat ice at  -21°C to steam at 152°C

Q: 73. At 291 K the ionic velocities of Ag* is 0.00057 cm/s and that of NO3 is 0.00063 cm/s. If the…

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Q: In a calorimeter, a 1.0 g sample of magnesium is burned to form MgO. In doing so, 25.5 kJ of energy…

A: Given: The mass of magnesium burned is 1.0 g. The amount of energy released is 25.5 kJ.