What does the number in a filter paper's brand represent?

Q: 2. Draw the major organic product for each of these one-step transformations. (In the first problem,...

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Q: A generic salt, AB,, has a molar mass of 165 g/mol and a solubility of 6.30 g/L at 25 °C. What is th...

A: Molar solubility = solubility / molar mass

Q: At 77°C, 2.00 mol of notrosyl bromide, NOBr, placed in a 1.00-L flask dissociates to the extent of (...

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Q: Which indicator is found in a solution with a pH of 10? a. Phenolphthalein turns colorless b. Litmus...

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Q: Assign E or Z geometry in the following compound. Explain how you arrived at your answers and clear ...

A: If the two groups (attached to each carbon of double bond) of high priority are on the same side of ...

Q: Consider the following compound and answer the questions below OH CO2H HO2C OH a) Draw a Fisher Proj...

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Q: What is the concentration of hydroxide ion in a 0.170 M aqueous solution of hydroxylamine, NH2OH? Wh...

A: pH of solution is defined as negative logarithm of hydrogen ions concentration.

Q: 6. The compound para-aminobenzoic acid is composed of Carbon (61.32%), Hydrogen (5.14%), Nitrogen (1...

A: Answer:- Given - total mass of PABA =100g Carbon= 61.32%, Hydrogen= 5.14%, Oxygen=23.33% and Nitroge...

Q: Calculate the pH of a 0.13 M solution of propanoic acid. K, of propanoic acid is 1.3 x 10-5.

A: pH is defined as negative logarithm of hydrogen ion concentration.

Q: Which of the selections below correctly describes the bond angle and hybridization for the carbon, h...

A: Given that: methanal  It is also called as formaldehyde. Structure :

Q: Using the NMR spectra and the chemical shifts values from the previous page, assign the chemical shi...

A: proximity to a more electronegative atom results in more deshielding and a larger chemical shift.

Q: What is  the pH of an (aq) solution, [OH-] = 4.6 × 10-10 M.

A: pH is equal to negative logarithm of hydrogen ions

Q: Using important key words and examples, summarize the trends in the properties of elements in the pe...

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Q: In which of these solutions will the weak acid, HNO,, ionize less than it does in pure water? 0.15 M...

A: HNO2 is a weak acid. It dissociates as,  HNO2 ⇌ H+ + NO2- So, According to Le Chatelier's Principle,...

Q: How do advancements of technology help us update or change various existing concepts? Why do you thi...

A: The answer is as -:  

Q: Complete the following table, which lists information about the measured acid dissociation constants...

A: Here, we have to find the values of Ka and pKa for the acids. Also, we have to arrange the acids acc...

Q: "You begin with 7.96 grams of CO(g) and 19.72 grams of O2(g) . If 8.83 grams of CO2(g) are produced,...

A: To calculate percent yield, we need to calculate theoretical yield. 

Q: An experiment shows that a 111 mL gas sample has a mass of 0.171 g at a pressure of 741 mmHg and a t...

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please re...

Q: A generic salt, AB,, has a molar mass of 165 g/mol and a solubility of 6.30 g/L at 25 °C. What is th...

A: Molar mass of AB3 = 165 g/mol Solubility = 6.30 g/L  

Q: Determine the osmolarity of 7.0 × 103 M Na PO4. Enter your answer in scientific notation. Be sure to...

A: Osmolarity is the the measure of solute concentration and is defined as the number of osmoles of sol...

Q: The mass percent of calcium [Ca, MM = 40.08 g/mol) in calcium carbonate [CaCO3, MM = 100.09 g/mol] i...

A: Mass of Calcium carbonate = 12.0 g

Q: Experiment 2 given: rate = k[H;O2]'[I]'[H'J° Sol'n # Water (mL) 0.050 M 0.1 % 0.050 M 0.050 1.033M T...

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Q: 2. ENTHALPY OF FORMATION Calculate the AHr of the reaction: 2C0) + 02cg) → 2C02) ->

A:  Net Energy needed for the formation of products is known as enthalpy of formation.

Q: conjugate acid conjugate base

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Q: The IUPAC name of CH3-O-CH2-CH2-CH2-CH3 is ---.     Question 26 options:   butyl pentyl ether   ...

A: The IUPAC name of CH3-O-CH2-CH2-CH2-CH3 is 

Q: A mixture of ascorbic acid (C6H,06H, Ka = 6.8 x 105) and sodium ascorbate is prepared such that [C6H...

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Q: conjugate acid conjugate base

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Q: For our reaction, the last reagent to be added to the reaction mixture is the Permanganate; step 6 o...

A: During the study of the kinetics of the reaction of potassium permanganate with oxalic acid, the las...

Q: Which of the following solutions when mixed will form a precipitate? 125 mL of 0.125 M NaOH aqueous ...

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Q: What is the value of Ksp for Cr(OH)3 if the molar solubility for chromium (III) hydroxide was determ...

A: Given : The molar solubility for chromium (III) hydroxide was determined to be 3.5x10-8 M. To calcul...

Q: The half-equivalence point of a titration occurs half way to the equivalence point, where half of th...

A: Given data : Moles of monoprotic weak acid = 0.280 mol Ka = 4.8×10-5

Q: Consider the following chemical reaction: 2H2O(1) → 2H2 (g) + O2(g) What mass of H2 0 is required to...

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please re...

Q: Calculate the volume of liquid in the round flask sketched below. Give your answer in milliliters, a...

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Q: AH =?

A: Since you have asked multiple questions, we will solve the first question for you. If you want any s...

Q: A 0.658 g sample of a diprotic acid is dissolved in water and titrated with 0.130 M NaOH. What is th...

A: First find number of moles of NaOH. Then with the help of balanced equation find the number of moles...

Q: Part A MISSED THIS? Read Section 6.7 (Pages 235 - 238) ; Watch IWE 6.12. What volume of O2 gas, meas...

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Q: Given the following reaction: Br2 + 2NaI → I2 + 2NaBr How many grams of sodium bromide (NaBr) will b...

A: Here given, the sodium iodide (NaI) is in excess i.e. bromide Br2 is acting like limiting agent. The...

Q: If 7.08 g of mercury (Hg) and 0.57 of oxygen are obtained when 7.65 g of HgO decomposes , what is th...

A: We have to calculate the percentage composition of the compound.  

Q: The UV spectrum for which of the following compounds would have the largest value for λ max? A. (CH3...

A:  λ max depends upon the type of transition  and the conjugation  present in the compound  

Q: Draw and describe each of the three main phases of matter (solid, liquid, and gas) such that it is c...

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Q: Which of the following statements is true? O lonic strength is a quantity that only depends on the c...

A: Ionic strength of a solution is equal to half of the product of the concentration and square of char...

Q: of the reducing agent and the formula of the oxidizing agent. redox reaction? yes no 2Fe(s) + 3NICI,...

A: Redox reaction : It is also known as oxidation-reduction reaction   

Q: Does a reaction occur when aqueous solutions ofsodium hydroxide and calcium acetate are combined   ...

A: We have to predict the net ionic equation.  

Q: It is determined that a particular chemical reaction has AH° = 42.2 kJ mol 1 and Aso, |-1 = 124.5 JK...

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Q: Draw the schematic representation of the Nitrogen orbitals in pyridine

A: Nitrogen is sp2 hybridised in pyridine in order to maintain the aromaticity of the compound. It form...

Q: For the following example, identify the following. H20(1) - H2O(s) OA negative AH and a negative AS ...

A: Given process: H2O(l) → H2O(s) We have to find the signs of ∆H and ∆S for this process.

Q: Suppose that you have 175 mL of a buffer that is 0.500 M in both hydrofluoric acid (HF) and its conj...

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Q: What kind of reaction is 2NaOH + H2SO4 -----> Na2SO4 + 2H2O

A: 2NaOH + H2SO4 -----> Na2SO4 + 2H2O

Q: Calculate the concentrations of all species in a 0.300 M NACH, COO (sodium acetate) solution. The io...

A: Given data : Concentration of NACH3COO = 0.300 M Ka = 1.8 × 10-5  

Q: OH H* (еxcess

A: Find the major product for the following reaction.