The rate of a reaction at 20.0°C is 6 times faster than at 40.0°C. Determine the activation energy (kJ/mole) of this reaction.

Q: 9. Which of the following molecules would you expect to have a dipole moment of zero? e. H₂C=CH₂ f.…

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Q: Question 7 In a liquid-liquid extraction using the biphasic solvent system described in Question 2,…

A: Distribution coefficient is concentration of cholesterol in organis solvent divided by…

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Q: How many grams of NaBr are needed to prepare 31.8 g of 1.13% (w/w) NaBr solution in water? How many…

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Q: Balance the redox reaction to answer the ff. questions. WO3 + H2 >W + H2O Which two atoms, had a…

A: Recall the given redox reaction,                                WO3  +  H2  →  W  +  H2OHere, we…

Q: This is the chemical formula for talc (the main ingredient in talcum powder): Mg, (Si₂O), (OH)₂ An…

A: In the chemical formula, the subscript written next to the atom represents the number of that atom…

Q: Materials with partially filled bands are metallic conductors, and materials with only completely…

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Q: d and e pls

A: Molar mass of a compound is equal to the sum of atomic masses of all the atoms in that compound.

Q: 3. Why is it important to have enough water in the calorimeter to completely cover the metal sample

A: To mention the reason why is it important to have enough water in the calorimeter to completely…

Q: Complete the mass balance expression for an aqueous solution of Ag₂CO3. [Ag+] = 2([?] + [?] + [?])

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Q: The maximum dosage of medicine A is listed as 20.0 mg per kg of body weight per day. The adult…

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Q: In order to define a metalloid, what are the most important characteristics to look for?

A: Metals are electropositive in nature and nonmetals are electronegative in nature. Metalloids are…

Q: A patient was injected with 5.00 ml of a 3.0gm/10mL codeine solution. How many grams of codeine were…

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Q: Chemistry What is a reaonance structure for this compound? Thanks! (Ph3)3P=C H CH3

A: In this question, we will write the resonance structure for this given compound.  Two or more than…

Q: A scientist has a 27% base solution and a 43% base solution. In order to complete an experiment, she…

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Q: Which substance is oxidized? Which substance is the oxidizing agent? Which substance is the reducing…

A: Balanced redox reaction is   2NO + O2  ---------------> 2NO2  Note: According to Q&A…

Q: Select the charge balance equation for an aqueous solution of MnCl₂ that ionizes to Mn2+, Cl-,…

A: Given equation for aquous solution of MnCl2 that ionises to Mn2+,Cl-,MnCl+ and MnOH+.

Q: Errors of different varieties may arise throughout the course of an experiment. Below, match the…

A: An error can be defined as the difference between the measured value and the true value. There are…

Q: Explain why strong acids have equal strengths in water (leveling effect, amphoterism, amphiprotic)

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Q: Part A What is the eigenvalue when the p² operator operates on the n=3 state of a proton in a box of…

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Q: Explain how using solvents other than water may differentiate the strengths of the strong acids

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Q: OH A 1. NaH, THF (solvent) 2. CH₂CHCH₂Br В

A: This is an example of nucleophilic substition reaction fist base abstract acidic proton then…

Q: Draw the structure that represents the compound C8H9Br HNMR: 7.4 (doublet, 2H), 7.2 (doublet, 2H),…

A: We have to determine the structure of the compound C8H9Br using the given NMR data

Q: 18. Using one of the reagents: 0.1 M NaCl, 1 M NH3 force the equilibrium to shift to the left.…

A: on addition of NaCl, concentration of Cl- increases and to minimize the effect of change that is to…

Q: Explain inorganic solids giving examples and illustrations in full details

A: Inorganic solids are two types 1. Crystalline solids Crystalline solids are those solids which have…

Q: You have a buffer solution containing an acid, HA. The pKa of HA is 7.20 and its conjugate base is…

A: Here we are required to find the pH of the buffer solution.

Q: 3. What is the mass in grams of each quantity of lactic acid (C3H6O3), the compound responsible for…

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Q: What is Chemical change

A: There are two types of changes. 1) Physical change 2) Chemical change In physical change no new…

Q: Using heat of fusion or vaporization to find the Calculate the amount of heat needed to melt 88.1 g…

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Q: In an experiment to determine its enthalpy of vaporization, liquid etrachloromethane, CCl4, was…

A: Given : CCl4 in an open boiler with heating coil In heating coil , Current , I = 0.933 A…

Q: Calculate the amount of heat needed to boil 174. g of ethanol (CH3CH₂OH), beginning from a…

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Q: Part B: Written Response ( Balance each equation in questions 9, 10, and 11. 9. AICI3(s) → Al(s) +…

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Q: Calculate the work done when 50 g of Fe reacts with HCl to produce a H2 gas in a open beaker at 25…

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Q: can u please re do this, i require all 8 steps  The following fictitious unbalanced REDOX reaction…

A: Redox is a type of chemical reaction in which the oxidation state of substance change... Oxidation…

Q: 0 0 OH

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Q: When we talk about atomic arrangement, what exactly do we mean?

A: Atomic Arrangement consist of  electrons protons and neutrons which are the basic fundamental  of…

Q: Select the strongest base. Đ NH2 OOH OCH3CH₂ OCH₂=CH-

A: Conjugate bases of strong acid are weaker while conjugate bases of weak acids are stronger. NH2-,…

Q: 11. What formula(s) would you use to convert from one temperature scale to the other? Conversion…

A: Measurement of temperature:  For the measurement of temperature for there are three scales of…

Q: Recall that for a lone pair to be involved in resonance, it must be in a p orbital, which requires…

A: Given in following question many organic  compounds

Q: 3. If a sample known to be about 28, 703 years old has 440g of C-14 atoms, how many grams of C-14…

A: Formulas are  ln(I0I) = K * t Half life = 0.693K

Q: H₂C you SH CH3 H₂C CH3 CH3 CH3

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Q: What happens to the solubility of an ionic compound as the ionic strength of the solution increases…

A: Increasing the ionic strength of solution increases the solubility of the ionic solution (~0.5M).

Q: Use the molecular orbital theory to explain the fundamentals of acid-base interactions (frontier…

A: Use the molecular orbital theory to explain the fundamentals of acid-base interactions (frontier…

Q: 31. (a) Calculate the pH of a mixture containing 0.1 M propanoic acid (CH3CH₂COOH) and 0.050 M…

A: Note: Since you have asked multiple questions in a single image. So according to guidelines here is…

Q: 6. You are given a mixture of the following gases: 0₂ (25.0 g) N₂ (25.0 g) Calculate the following…

A: Molar mass of O2 is 32 g/mol Molar mass of N2 is 28 g/mol Molar mass of NO2 is 46 g/mol The…

Q: Calculate the molarity of a 1.10 m aqueous solution of a solute with a molar mass of 104.8 g/mol.…

A: A 1.10 m solution has 1.10 moles of solute in 1 Kg solvent. Mass of solute = no of moles × molar…

Q: The diameter of a red blood cell is 6×10−6m6×10−6m. How many centimeters is this

A: As we know,           1m = 100 cm = 102 cm.

Q: 2) Applications of gas laws to atmospheric science. Atmospheric pollution is a problem that has…

A: Given, Lower limit : Mass of gas emitted = 300 metric ton  And 1 metric ton = 1000000 g so the mass…

Q: For the decomposition of calcium carbonate CaCO3 (s) CaO (s) + CO2 (g) ∆H0 = 175 kJ How will the…

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Q: 5 2-Bromobutane, CH3CH₂CHBrCH3, can be prepared by three different methods. The relative molecular…

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