The molecular weight of NaCl is 58.44 grams/mole. How many grams of NaCl are added to 2 liter of water to make a 0.4 molar solution? Include the appropriate units (grams) in your answer.

Q: Use Newman projections to show the mechanism of the addition of bromine to trans- and cis-stilbene.…

A: we have to Use Newman projections to show the mechanism of the addition of bromine to trans- and…

Q: Calculate the mean and sample standard deviation for the following data: 90.0, 90.0, 85.0, 83.0,…

A: Mean = Σxi/n Standard deviation = √(Σxi2/n - (Σxi/n)2) n = total observation

Q: At 1 atm, how much energy is required to heat 53.0 g H2O(s) at −16.0 ∘C to H2O(g) at 155.0 ∘C?

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Q: 3. In each series circle the most stable and underline the least stable. Explain your choices. a b

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Q: osage & Others A block of lead has a volume of 185 mL and weighs 2090 g. Calculate the density of…

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Q: At 850°C, CaCO3 (calcite) undergoes substantial decomposition to yield CaO and CO₂. Assuming that…

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Q: aw one of the two enantiomers of the product of this hydrogenation eaction. Use a dash or wedge bond…

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Q: Consider the following elementary steps that make up the mechanism of a certain reaction: 3A ⟶ B +…

A: The overall reaction is obtained by the addition of the elementary steps and eliminating the…

Q: Propose an efficient synthesis for the following transformation: The transformation above can be…

A: Answer:- This question is answered by using the simple concept of chemical reactions of organic…

Q: Tris can be purchased in two forms, the acid form (Tris HCl, 157.6 g/mol) and the base form (Tris…

A: a. To make 40 mL of buffer, we first need to calculate how many moles of Tris are needed. We can use…

Q: CHEMWORK The density of osmium (the densest metal) is 22.57 g/cm³. What volume would be occupied by…

A: Given, Density of Osmium = 22.57 g/cm3 mass of Osmium= 1.63 kg = 1.63 × 1000 g = 1630 g Volume…

Q: If an object has a density of 1.67g/mL and à volume of 3.00mL, what is the mass of the object?

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Q: 3) Write the mechanism for the following polymerization? tổ Anionic polymerisation

A: A polymer is a large molecule that is formed by the repetition of small units called a monomer, and…

Q: A raindrop has a mass of 50. mg and the Pacific Ocean has a mass of 7.08 × 10²0 kg. Use this…

A: Mass of raindrop = 50 mg  Mass of Pacific Ocean = 7.08 x 1020 kg

Q: what is the energy of a wave if its wavelength is 720nm? Group of answer choices 2.76 x 1040 J 3.6…

A: Given, Wavelength (λ) = 720 nm = 720 × 10-9 m = 7.2 × 10-7 m Energy of a wave (E) = ? Note:  Speed…

Q: If 50.5 g of KBr are dissolved in 400.0 g of water at 25.0 °C in an insulated container, a…

A: Given that, The initial temperature of the solution is T1 = 25oC = (273+25) K = 298 K, The total…

Q: The table gives the concentrations of C₂H4O(g) as a function of time at a certain temperature for…

A: A first-order reaction is characterized by a linear relationship between the natural logarithm of…

Q: Which of the following hydrocarbons is/are aromatic ? You have to select all correct answers in…

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Q: Calculate the ratio of effusion rates for He and Xe. Express the effusion rate to three significant…

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Q: 36) The major product formed in the following reaction is: NOH H*

A: The above reaction is an example of Beckmann rearrangement; the mechanism of reaction is as follows

Q: 1. Improved construction of the probable plot of energy levels produced not only i but also regions…

A: An atomic orbital is a function used to determine the position and wave-like behavior of an electron…

Q: 3. Draw all the possible resonance structures for each of the following molecules. a. SO₂ b. NO3

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Q: An 21.1-g ice cube at 0°C is placed onto a 325-g block of aluminum. Calculate the temperature change…

A: The heat energy is absorbed from the aluminum block and it is used for the melting of ice cube.

Q: Determine the equilibrium constant, Keq, at 25°C for the reaction 2Br (aq) + L₂(s) ⇒ Br₂(1) + 2I¯…

A: The reaction given is ->  2Br- (aq) +  I2(s) --> Br2(l) + 2I-(aq)  Temperature 25°C

Q: Electromagnetic radiation with a wavelength of 525 nm appears as green light to the human eye. The…

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Q: Using the molecular weight of Tris base (121.14 g/mol), calculate how much Tris base you need to…

A: Since you asked multiple questions so as per Q&A guidelines of portal I solved first question…

Q: I am required to enter answers in each box provided for the question. The answer that was provided…

A: Using unit conversion formula, mass of sample can be determined.

Q: Ultrapure silver is used to make solid state devices such as computer chips.  What is the mass in…

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Q: Express the Beer-Lambert law mathematically and discuss the factors causing the deviation from it.

A: This question belongs to photochemistry chapter.

Q: 2. Which of these molecules will have the lowest vapor pressure? Circle the correct answer and…

A: We have been given four molecules and we have been asked to circle the molecule that have lowest…

Q: Alcohols can undergo a lot of different reaction mechanims. If the alcohol group (OH) is attaached…

A: OH group attached to Aromatic ring is called as Phenol OH group attached to alkyl is called as…

Q: What type(s) of bonding would be expected for each of the following materials: (Write on your…

A: Types of bonds are a)Ionic bonds b) Covalent bonds c) Metallic bonds  d) van der Waals forces of…

Q: What is the IUPAC name for the compound shown? CH3 H3 C-C CH–CH2–CH2CH3 CH3 CH₂ CH3

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Q: Citrus fruits are rich in citric acid, a compound with three COOH groups. Explain why the pK, (for…

A: R2R'CH2COOH  =   H+  +   R2R'CHCOO- Ka = [H+] [R2R'CHCOO-]/[R2R'CH2COOH] pKa = - logKa Higher the…

Q: 14. Question: Chapter: 2 Lesson: 2 1. Which of the following electron transitions in a hydrogen atom…

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Q: Which of the following changes will increase the total frequency of collisions, both effective and…

A: When on particle interact with other particle reaction takes place dueto collision,it is of two…

Q: provide the correct structure startingmaterial/reagents/ product for the following reaction

A: Diels-Alder reaction: The Diels–Alder reaction is a pericyclic reaction (cycloaddition) between a…

Q: Which of the following depicts highest occupied molecular orbital (HOMO) of 1,3-butadiene? 8888 8888…

A: We have to identify the molecular orbital that depicts HOMO of 1,3-butadiene

Q: What action determines the pressure of a gas? expanding of the container reactions in the container…

A: Expanding the Container means volume of the container increases so it does not determined the…

Q: Br A Br A Identify the pro-R and pro-S groups/atoms in the following molecule, justifying your…

A: R S configuration explain absolute configuration of molecules by using CIP rule.

Q: 5. Provide reagents/conditions to accomplish the following syntheses. Several steps are required in…

A: In this synthesis, we will Synthesized the final product from the starting material by using…

Q: A solution contains both copper(II) nitrate and lead(II) nitrate. What substance could be added to…

A: This question is based on selective precipitation of ions .

Q: 33 $ 串 Fribourg, Department of Chemistry # s for the last electron in He are: {n, I, mi, ms} ted? 1…

A: Quantum numbers: The set of numbers used to describe the position and energy of the electron in an…

Q: Draw the major product of this reaction. Ignore inorganic byproducts. || OH (CH3)3CSi(CH3)2Cl, Et3N…

A: Protecting group is used for the protection of particular functional group.It is used when in…

Q: 33) Which one of the following reaction is NOT an example of ipso-substitution? (a) CI OH (b) (c)…

A: :Ipso-attack is mainly given by nucleophile in nucleophilic substitution reaction.

Q: You're trying to finish preparing a compound that a coworker had to stop in the middle of making.…

A: Given that, 20 g of pure benzoic acid to 90 g of ointment that already contained 6% benzoic acid. We…

Q: u H₂C eTextbook and Media Hint Part 2 CH3 Add curved arrow(s) to show a mechanism for formation of…

A: The given structure of the alkoxide ion and here we have the required solution below -->

Q: Compare: Producing 350g of Al(NO3)3 required a greater amount of Ba(NO3)2 or Al2(SO4)3? How much…

A: This question is based on stoichiometry and balancing of equation.

Q: Silver has 2 commonly occurring isotopes. 51.839% of Silver atoms have 60 neutrons and 47 protons,…

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Q: T he recommended dose of memantine H Cl (N AMEN DA) is: Week 1, 5 mg/day Week 2, 10 mg/day (5…

A: This question is based on simple stoichiometric calculation.