A sample of oxygen has a volume of 280 ml at 30˚ C and pressure of 740 mm Hg. The temperature is lowered to 10˚ C and the pressure to 205 mm Hg. What is the new volume? Use the Combined Gas Law. Show your computations.

Q: Methyl alcohol (CH3OH) is made by the reaction of carbon monoxide and hydrogen in the presence of…

A: Answer: This question is based on the concept of limiting reagent. Limiting reagent is the reactant…

Q: 33.) How many milliters of 15.7 M H₂SO₄ are needed to prepare 600.0 mL of 0.10 M H₂SO₄?

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Q: Create a BCA Table for the Equation: 2HCl(aq) + M(OH)2(aq) --> 2H2O(l) + MCl2(aq) AND FILL OUT THE…

A: Volume of HCl sol=40.00 mL = 0.04L Molarity of HCl sol= 0.0521 M Molarity of M(OH)2 sol= 0.07 M…

Q: Which of the species that are shown below would behave as a nucleophile with ease? There may be more…

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Q: A student obtains the following data from the Determining the pKa of an Acid-Base Indicator…

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Q: Suppose a 500. mL flask is filled with 1.4 mol of NO3 and 1.9 mol of NO₂. The following reaction…

A: Note: As per the guidelines, expert solution of 1st question has been made. For the expert solution…

Q: You may want to reference (Pages 376-378) Section 11.5 while completing this problem. Give the IUPAC…

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Q: What mass of precipitate (in g) is formed when 20.5 mL of 0.500 M Cu(NO₃)₂ reacts with 26.0 mL of…

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Q: What is the molar concentration of Fe²+ ion in an aqueous solution if 36.50 mL of 0.115 M KBrO3 is…

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Q: Write a detailed, stepwise mechanism for the following free-radical monochlorination. reaction. CH3…

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Q: THA 1) Hg (OAc)₂, H₂O 2) NaBH₁ 1) geben 2) H₂O* OsO4

A: The products are enantiomers, a pair of molecules in which non-superimposable mirror images of each…

Q: 11. Which of the following is true of SN2 reactions? a. They require two mechanism steps. They…

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Q: Use this diagram to map the reaction's progress in terms of enthalpy: H Reaction progress Draw an…

A: The question is based on the concept of chemical thermodynamics. enthalpy of combustion of Methane…

Q: 3 attempts left Check my work Indicate the mechanistic symbols (Syl, Sy2, E1, E2) that are most…

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Q: O ACIDS AND BASES Predicting acid or base strength from the conjugate Notice t ome of the rankings…

A: Answer: Stronger the acid weaker will be its conjugate base and vice versa. By using this piece of…

Q: Out of all the Silicon isotopes, which ones can be used in NMR?

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Q: Using first your head, and then the Henderson-Hasselbalch equation, find the pH of a solution…

A: Given, ClCH2COOH: 0.200 mol ClCH2CO2Na: 0.080 mol HNO3: 0.060 mol Ca(OH)2: 0.060 mol (provides…

Q: H₂SO3(aq) + CsOH(aq) → Express your answer as a chemical equation. Identify all of the phases in…

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Q: Black Forest Biologicals, a biotech startup, has a promising Alzheimer's drug candidate Compound…

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Q: SUBJECT : GENERAL CHEMISTRY TOPIC : THERMAL RUNAWAY 1. What are some of the ethical and social…

A: Since you have posted multiple question, we can solve only first question for you. If you want other…

Q: What is the AH for the following reaction: IFs (g) → IF3 (g) + F₂ (8) Given: IF (g) + F2 (g) → IF 3…

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Q: In the analysis of this lab, a student found a linear fit of their data of y=3697x+0.0017. What is…

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Q: 6. Rank the following compounds in order of most basic to least basic. ex M 11 III IV

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Q: mist dissolves 744. mg of pure hydrochloric acid in enough water to make up 250. mL of solution.…

A: HCl is strong acid it dissociated fully in aqueous solution

Q: Lime is a term that includes calcium oxide (CaO, also called quicklime) and calcium hydroxide…

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Q: Part C Americium-241 is used in some smoke detectors. It is an alpha emitter with a half-life of 432…

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Q: Question 7 Which of the following carbonyl compounds will form primary alcohol with DIBAL-H followed…

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Q: 27. What is the mole fraction of ascorbic acid, C6H8O6 , in a solution containing 80.5 g of ascorbic…

A: In the given question, we have to find mole fraction of ascorbic acid in water.

Q: 13. Which is a possible tautomer for the given molecule? I a. I b. II с. D III OH II OH Ш d. e. ОН…

A: 13) This question belongs to basic organic chemistry.

Q: Which of the following does not have DHof=0 at 25oC?          N2(g)         Cu(s)       Kr(g)…

A: Enthalpy of formation, also known as heat of formation, is the amount of heat energy released or…

Q: Complete the mechanism for the reaction of excess ammonia with 4-chlorobut-1-ene by adding any…

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A: Check the formula for activation energy and use it to calculate the activation energy.

Q: Part C CH₂ CH3 CH3 CH₂-CH-CH-CH₂ CH3 CH₂ CH3 Spell out the full name of the compound. Submit Request…

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Q: Question 6: OCH 3 OCH 3 Pd₂(dba)2 Ph₂As X-Sn (h-Bu), OCH 3 OCH 3 Sn }= STILLE rxn!? Question 7: TfO…

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Q: 4NH3(g) 6H₂0 (1) 4NH3(g) + 302(g) = 2N2(g) 6H₂0 (1) AH = -1530 kJ + 502(g) = 4 NO(g) AH = -1170 kJ +…

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Q: Calculate the formula mass of magnesium periodate, Mg(IO4)2 , in atomic mass units (amu or u).

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Q: calculate the Wavelength in nm of the red light emitted by a neon sign. with a frequency of 4.84 ×…

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Q: Pre-Heat Item Crucible Lid Crucible Crucible & Lid Crucible Lid & Sample Sample (Preheat)…

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Q: First, draw out the structures in the following reaction to identify the bonds being broken and the…

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Q: For which of the following equations would the value of Kc = Kp? O a. N₂ (g) + 3 H₂ (g) ⇒ 2NH3 (g) O…

A: Answer of this question :-

Q: In the diagrams below identify the areas in which Hund's Rule was broken (if it was broken). 112 14…

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Q: Explain what factors need to be considered when determining whether an ionic compound is soluble in…

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Q: Which one of the following salts will for an acidic solution upon dissolving in water? ONH4NO3 KI…

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Q: If 2.10 g of CuSO4 is dissolved in 9.37 x 10² mL of 0.360 M NH3, calculate the concentrations of the…

A: When Cu2+ reacts with NH3 it forms a complex like Cu(NH3)42+which is blue in colour.

Q: The following represents the effect of time on the concentration during a reaction. The upper line…

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Q: 1. Which of the following molecules is achiral? O₂N- HO- a. b. c. I CH₂ CH₁ II III X 111 d. IV e. V

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Q: A chemist must prepare 450.0 mL of hydrochloric acid solution with a pH of 1.30 at 25 °C. He will do…

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Q: A 40.0 g sample of an unknown metal at 99.0 °C was placed in a constant-pressure calorimeter…

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.