Identify the correct number of significant figures in each of the following measurements: | 0.06700 mL 9300 m 10.0040 °C 1.20x10-6 g 60.0 s 0.0000204 lbs 140 kJ 0.33030 mol

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Q: 50. Calculate the number of moles in a 10.0 g sample of NaOH. 23 23 a. 0.250 mole b. 1.66 x 10 mole…

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Q: 4. Student A places a 20 mg sample on a cover slip. Student B places a 1 mg sample on a cover slip.…

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Q: What is different for enantiomers? a)The rate at which they react with a chiral column b) the TLC Rf…

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Q: In the Hall-Heroult process, a large electric current is passed through a solution of aluminum oxide…

A: Given -> Current (i) = 8900 A  Time (t) = 78.0 seconds

Q: A chemist weighed out 81.7 g of potassium. Calculate the number of moles of potassium she weighed…

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Q: What is the likely product of the reaction shown? & OD) IV O None of these B) II H3O+ DAL OH OH you…

A: In the given reaction, acidic hydrolysis of epoxide occur to give di hydroxy product.

Q: ОН CH₂OH ОН ОН ОН + C1₂

A: To complete the following reaction:

Q: in a different experiment it is observed that 332 cal of heat is absorbed as the temperature of 58.2…

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Q: Predict a likely mode of decay for each of the following unstable nuclides. Drag the appropriate…

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Q: Hydrazine, N₂H4, decomposes according to the following reaction: + N₂ (8) 3 N₂H4 (1) → 4 NH3 (g)…

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Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 442.0 g sample…

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Q: Which of the following Cl₂ +2e-2CI- Mg²+ + 2e- → Mg 2H+ + 2e- → H₂ Cl₂ H₂ Mg is the best reducing…

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Q: 79. Detemine the pOH of each solution and classify it as acidic, basic, or neutral. (a) [OH-] = 1.5…

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Q: GLYCOLYSIS: 1A) Starting with glucose (in the open-chain Fisher projection), draw out the molecular…

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Q: 8. How much mass is released as energy in the explosion of a 4.6 megaton bomb? Include at least 3…

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Q: Arrange the conjugate acids of the following bases in increasing acidity.

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Q: It says the solution is incorrect

A: Given that, for carbon-11 The half-life is t1/2 = 20.3 min. The initial amount is N0 = 1×107 atoms.…

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A: Cahn Ingold Prelog (CIP) is the set of rules that are used to name the stereoisomers of a molecules.…

Q: 2. Based on Appendix 1, identify any two (2) significant bonds and the approximate wavenumbers…

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Q: How many different signals are there in the molecule shown? A) 1 B) 2 C) 3 D) 4 H3C CH₂ CH₂ CI CI…

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Q: What is the IUPAC name of the major product of a reaction of 2,2-diphenyl-4-oxopentanenitrile +…

A: We have find out the major product of the reaction.

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Q: 1. A current of 4.84 A4.84 A is passed through a Cr(NO3)2Cr(NO3)2 solution for 1.10 h1.10 h. How…

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Q: A freshly isolated sample of 90Y was found to have an activity of 2.4 x 105 disintegrations per…

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Q: Compute for the pH when a 25.00 mL of 0.1000 M HNO2 (47.01 g/mol; Ka = 4.5 x 10-4) was titrated with…

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Q: Identify the conjugate acid for each base. conjugate acid of HCO3: conjugate acid of SO²: conjugate…

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Q: Which product is formed in the reaction shown? o O O O OD) C) A) 1) BH, 2) H₂O₂, OH Both 1 B) 11…

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Q: 4. Suggest an efficient synthesis for each of the following transformations: OH OH

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Q: Which one of the following covalent compound structures is characterized by the SMALLEST bond angles…

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Q: Select the correct IUPAC name for the compound shown to the right. O B) k OE)…

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Q: (d) Provide an appropriate IUPAC name for the following structure. 3. Br (e) Draw a bond-line…

A: (d) IUPAC- 3-bromo-5-isopropyl octane  3. 95.18%.    4.75%

Q: The binding energy of a certain metal is 331 kJ/mol of electrons. What is the kinetic energy (in…

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Q: When 16.1 g of Na and 10.8 g of Br₂ react, what is the mass, in grams, of NaBr that is produced?…

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Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.