How many significant figures are there in the answer for the following problem? [(143.7-121) × 2.06] = ? 0.600

Q: e. C. What is the standard cell potential (E°) for this reaction? d. What is the standard free…

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Q: Calculate for the normality of H₂SO4 for the reaction H₂SO4 + 2 NaOH → Na2SO4 + 2 H₂O if the acid…

A: Initial volume of H2SO4 = 7.5 ml  Initial Molarity of H2SO4 = 1.0 M After dilution total volume =…

Q: Uranium hexafluoride, UF, is an important compound used in the enrichment of uranium by gaseous…

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Q: For Water at 15 bar and 400°C What is the specific internal energy in kJ/kg?

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Q: Sulfur does not dissolve in water, but it does dissolve in carbon disulfide; potassium nitrate does…

A: To ensure that potassium nitrate is included in the filtrate, the gun powder combination is first…

Q: Which of the following molecular formulas is reasonable for a stable compound? O a. C7H10NCI b.…

A: -> For stable compound the reasonable molecular formula must contains integer degree of…

Q: Suppose you were researching a drug, A, whose kinetics were unknown, and were undertaking in vitro…

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Q: Which reaction correctly shows the rare event for electron capture?

A: we have to select the nuclear equation that represents electron capture

Q: The following thermochemical equation is for the reaction of ammonia(g) with oxygen (g) to form…

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Q: 1. Oxygen gas will produced via a decomposition reaction of a certain substance.    a. Name the…

A: Decomposition reaction: Decomposition reaction occurs when large or complex compound break down into…

Q: 3 15. Decide whether each statement is true (T) or false (F). Place your answer in the blank space…

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Q: The boiling point of water is about 200°C higher than one would predict from the boiling points of…

A: The boiling point of any aqueous solution or liquid depends on the intermolecular force between…

Q: 1) Write the equation for the reaction used to generate oxygen gas. Word Equation: Formula Equation:

A: 1) Decomposition reaction: Decomposition reaction occurs when large or complex compound break down…

Q: NO3 + H₂O →N₂O + O₂ Match the following for the above reaction. Drag and drop options on the…

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Q: αcarboxyl and α-amine are 2.2 and 9.1 perspectively. Calculate isoelectric point of tyrosine. i want…

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Q: The structures of two tertiary bicyclic chlorides (compounds 1 and 2) are shown below. Which of the…

A: Bridgehead carbon never adopt planarity

Q: Given the standard enthalpy changes for the following two reactions: ΔΗ° = 9.2 kJ (1) N₂(g) + 2O2(g)…

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Q: Which structure is different from the following? a. b. C. d. CH3 н Н CH3 H CH3 CH3 H3C- н CH3 CH3 н…

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Q: Barium Hydroxide has a solubility of 4.68 g Ba(OH)2 in 100. g H2O at 25°C. Determine if each of the…

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Q: Et3N ** Et₂O H Find out the product A, B and C. i. i. Me NaNH, NH3 NaNH, B ii. ii. Br H₂O (Weak…

A: Note - The given question is a multiple questions , hence I solved first question according to rules…

Q: The Clausius-Clapeyron Equation (hopefully introduced to you in General Chemistry) can be used to…

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Q: Select the product this Diels-Alder reaction?

A: Organic reactions are those in which organic reactant react to form organic products.

Q: know, however, that both calcium and sulfur react acts with the acidic oxide SO3 (g) to produce Cas…

A: Given: ∆rHo=-402.7kJCaSO4=-1433.5 kJ/mol

Q: Calculate the enthalpy change that occurs when 4.63 g of SnC14 (1) reacts with excess H₂O(l) to form…

A: Here, we have to calculate the enthalpy change that occurs when 4.63 g of SnCl4(l) reacts with…

Q: Below are several common solvents in organic chemistry. Select those that would not be compatible…

A: Given : structure of molecules Grignard does not react with ether, alakne, benzene

Q: What is the relative rate of addition of HBr to A) 1,3-pentadiene, B) 1,4-pentadiene, and C)…

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Q: Suppose you burned 1.634 g of benzoic acid, C6H5 CO₂ H, in a constant volume calorimeter and found…

A: Given , mass of benzoic acid= 1.634 g temperature change = (30.63-20.01)oC = 10.62oC = 10.62 K mass…

Q: What is the correct IUPAC name of the following compound? Br Problem viewing the image, Click Here…

A: Here we are required to provide the IUPAC name.

Q: Ammonium sulfate, (NH4)2SO4, is used in fertilizers to provide nitrogen for the soil.  a. How many…

A: Given,  Ammonium sulfate (NH4)2SO4 ,  The number of formula units present in 0.200 mol. of ammonium…

Q: Cruien & Pels (8) = pcl3 cg) + Cl₂cg) Quios, if the equillibrium constant for the above reaction is…

A: The equilibrium reaction is: PCl5(g) ⇌ PCl3(g) + Cl2(g) ; K = 4.0*10-4

Q: What are the coefficients?

A: Given that, a redox reaction is H5IO6 + Cr → IO3- + Cr3+. We have to write the coefficients of the…

Q: The belt of stability helps relate the first--------  elements that are stable without…

A: The belt of stability is the narrow region, on a graph of isotopes, where the isotopes are stable (…

Q: The parent compound of phospholipids: O A. glycerol B. phosphatidic acid O c. ethanolamine OD. none…

A: B. Phosphatidic acid is the parent compound of phospholipids.

Q: give both answer just with little bit explanation 10. (6) Blank 1: which is product X. Type a letter…

A: I have given the answer in the explanation section. Hope you will understand that.

Q: 4) Consider the isothermal expansion of a 1.00 mol sample of ideal gas at 37 from the initial…

A: Dear student ,   since you have posted multiple parts questions we are allowed to solve only first…

Q: Silane, SiH, is a colorless, pyrophoric, toxic gas that is used to deposit elemental silicon for…

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Q: What mass, in grams, of NaCl needs to be added to 1.7 kg of water in order to create a solution with…

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Q: 8. (8) Predict the splitting pattern for each signal in the 'H-NMR spectrum for the following…

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Q: What is the strongest type of intermolecular forces present in acetone (look up the structure)?…

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Q: All machines reduce the amount of force required to complete a task by doing what? O a b Oc Od…

A: Energy can be defined as the property that can be transferred to a physical system.

Q: Draw the Lewis structure of IFs and then determine the hybridization of the central atom. + Click to…

A: Here, we have to draw the Lewis structure of IF5. Also, we have to determine the hybridization of…

Q: What piece of metal will you heat (choose its number)? What piece of metal will you cool (choose its…

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Q: Explain the trend in effective nuclear charge (Z*) going from left to right across periods in the…

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Q: NCS 1. AICI 3¹ 2. Br₂, FeBr3 3. Zn(Hg), HCI 1. NBS CI 2. KOtBu

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Q: X-ray radiation falls in the wavelength region of 1.00×10-11 to 1.00×10-8 meters. What is the…

A: Given, Wavelength of X-ray (λ) = 1.00 × 10-11 m Frequency of X-ray (f) = ? Note: speed of light in…

Q: In the following synthesis, there are 2 steps that must be done in the correct order (i.e. Step #1,…

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Q: An analyst was titrating a solution of unknown acetic acid concentration with 0.01 M NaOH using…

A: pH range of phenolphthalein indicator is 8.3 to 10 i.e below pH 8.3 it is colourless and above pH 10…

Q: All WOTK men A solution of NaCl (aq) is electrolyzed for 15.5 min using a current of 3.45 A. Write…

A: Given that, a solution of NaCl (aq) is electrolyzed. The time is t = 15.5 min = (15.5×60) sec = 930…

Q: Arrange the following compound in the order of increasing acidity (least acidic first) I)…

A: Given compounds: I) Cyclohexanol II) 4-Nitrophenol III) Phenol IV) 4-Chlorophenol The acidity…

Q: Draw the two major products obtained in the reaction shown. + Br2 (one equivalent) CH₂Cl₂

A: Given : structure of reactant. And reagent This is a electrophilic addition reaction.

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.