Directions: Click each answer vou want to select You must select all the correct answers. Which of these conditions will cause an increase in the molar concentration of a solution? Stirring the solution Some of the water evaporating from an aqueous soiution Increasing the amount of solute Adding water to an aqueous solution Cecreasing the volume of a gaseous solution

Q: Complete and Balance The following equation, in the case that the reaction doesnt occur write "NR"…

A: Given unbalanced and incomplete reaction is :  MnO4- + OH- + SO32- --------------> ?  Complete…

Q: QUESTION 1 Use these pKa values to caloulate the charge on the peptide below at pH 6. alpha COOH 2.0…

A: “Since you have asked multiple question, we will solve the first question for you. If youwant any…

Q: For the question(s) that follow, identify the class of lipid to which each of the following…

A: Lipids can be defined as the organic compounds that are insoluble in polar solvent and are soluble…

Q: 2. Balance the following half-reaction in an acidic solution: Cr,0," Cr*

A: Redox reaction are those in which both oxidation and reduction reaction occurs simultaneously.

Q: A first-order reaction has rate constants of 4.6 x 102s and 8.1 x 102 s1 at 0°C and 20.°C,…

A:

Q: Which of the following is NOT trie about REDOX titration? I. It is type of titration in which the…

A: Redox reactions are the ones in which one reactant gains electrons whereas the other looses…

Q: 1. Which is more reactive? a. carboxylic acid b. acid anhydride c. acid halide d. amides e. esters…

A:

Q: Which of the following is not best used as a titrant for the acid-base titration of antacid tablets?…

A: Answer: Antacid tablets are used in the remedy of acidity when pH of the stomach decreases and…

Q: What is the identity of the sample?

A: Here we are required to identify the sample

Q: time [H,co,] (seconds) 0.800M 1.0 0.384 M 2.0 0.185 M 3.0 0.0888 M 4.0 0.0426M

A: rate law states that rate of reaction is directly propertional to the product of molar concentration…

Q: 4. Name each of the following esters: b) a) CH;CH,COCH,CH3 CH3-OĊ: c) CH;CH,CO- d)

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Q: What is the concentration of sodium ions in 0.105M Na2HPO4?

A:

Q: Identify the spectator ions (if any) when aqueous solutions of the following are mixed: AGNO3 and…

A: Given-> AgNO3 + NaCl --->

Q: The concentration of an unknown protein sample was determined as 1.075 mg/ml. Calculate the…

A:

Q: What are the products of an acid-base neutralization reaction? (This is the general reaction of an…

A: Given-> Acid + Base ---->

Q: Draw a plausible mechanism for the reaction shown below. Determine the major product and provide…

A: The reaction involves an allylic bromination followed by generation of a phosphorus ylide and Wittig…

Q: Air conditioners dry the air while they cool the air. Suppose an air conditioner is used to cool a…

A:

Q: Automobile air bags inflate during a crash or sudden stop by the rapid generation of nitrogen gas…

A:

Q: Balance the equation equalizing both atoms of the equation N2 + Cl2 --->

A: Balanced chemical equation can be defined as the equation in which number of atoms of every element…

Q: Draw out Lewis Dot structure for acetic acid (show step by step procedure), indicate hybridization…

A: Hybridization is defined as mixing of orbitals so as to rehybridize to form new set of orbitals…

Q: What is the OH⁻ concentration in this solution 1.05 M C₅H₅N?

A:

Q: Air conditioners dry the air while they cool the air. Suppose an air conditioner is used to cool a…

A: Given Data :

Q: What mass of carbon dioxide is produced from the complete combustion of 3.20×10−3 g of methane?…

A: Given, Mass of methane (CH4) gas react = 3.20 × 10−3 g  mass of carbon dioxide (CO2) gas produced =…

Q: Calculate the pH before and after the addition of 10.0 mL of 0.10 M nitric acid to 100. mL of each…

A: Given,  Molarity of HNO3 = 0.10 M  Volume of HNO3 in mL = 10.0 mL  Volume of the buffer = 100 mL…

Q: Identify the molecules or ions below as Lewis acids, Lewis bases, or neither. If there is more than…

A: ** Lewis acid : Lewis Acids are the chemical species which have empty orbitals and are capable to…

Q: For many purposes we can treat propane (C3H8) as an ideal gas at temperatures above is boiling point…

A:

Q: So, when there is no value given for a substance O2, you are to assume that it is zero?

A:

Q: 3. Propose a structure for Compound X which has a molecular formula CoHz0 with an IR absorption at…

A:

Q: Which of the following is not standardized against KHP? Section а. NH3 b. NaOH с. Н.SO4

A: KHP ( Potassium hydrogen pthalate ) is acidic in nature , so it can be used to standardize basic…

Q: How many litters of HCI [5.2M] would react completely with 325g of Na2CO3? [1 N22CO3 + 2 HCI → 2…

A:

Q: Balance the following redox equation by the ion-electron method: Cu+ HNO, Cu + NO + H,O (in acidic…

A:

Q: Using the table of the weak base below, you have chosen Methylamine as your weak base in the buffer…

A: Kb is the dissociation constant of a base. Calculations for pKb have been done in the following…

Q: Explain per step. Given the MS spectra of 2-pentanol, show the fragmentation pattern responsible…

A: The mass spectrum of 2-pentanol given has peaks at m/z 73, 70, 55, 45, 42.

Q: Balance this equation, MnO2(s) + Cl-(aq) —> Mn2+(aq) + Cl2(g) using the half-reaction method.

A:

Q: 13.7 mL of CO2 is held at 11.7atm and 20°C in a fire extinguisher.  When the extinguisher is used,…

A: Here pressure, volume and temperature all are changing to combined gas law would be used to…

Q: What is the pH of a buffer solution containing 0.50 M acetic acid and 0.50 M sodium acetate? The…

A:

Q: Draw a ketohexose. Draw the molecule on the canvas by choosing buttons from the Tools (for bonds and…

A: We have to draw a ketohexose.

Q: What is the pH of a buffer solution containing 0.25 M acetic acid and 0.030 M sodium acetate? The…

A: Given that, [Acetic acid] = [Acid] = 0.25 M  [Sodium acetate] = [Salt] = 0.030 M  Ka= 1.8×10-5 pH =…

Q: Chemical Equation: NO2 + H2O → HNO2 + HNO3 (BALANCE THE EQUATION FIRST) 1. Compute for the ΔH° rxn…

A:

Q: D H. I. OH -Br DMSO H3C CH3 HOCH,CH,CH, H3C 'CH3 II.

A:

Q: The following information is given for mercury at 1 atm: AHp(356.60°C) = 295.6 J/g AHa(-39.00°C) -…

A: At the given initial temperature mercury is in solid state , so first ther would be heating of solid…

Q: Using the table of the weak base below, you have chosen Pyridine as your weak base in the buffer…

A: Given: Kb of pyridine = 1.7×10-9

Q: A sealed flask contains a mixture of hydrogen, oxygen, and nitrogen gases. The gases 11 A exert a…

A:

Q: Predict the number of "CNMR signals in 2-methylpent-2-ene? 13 Answer Choices: (A) 4 signals (B) 6…

A:

Q: Silicon is essential to the computer industry as a major component of semiconductor chips.It has…

A: Isotopes are those atoms of an element, that have same atomic number and different mass number.…

Q: Question 2 What is being monitored by the titartion curve in the redox reaction? concentrations of…

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Q: To prepare the buffer in the previous problem, a total volume of 500 mL is required. The stock…

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Q: Balance the equation equalising the numbers of atoms on both sides of the equation Ca + O2 -->

A:

Q: 1) What is the heat change when 4.72 g of Carbon reacts with excess O2 according to the following…

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Q: Chemistry 3. The following sequence generates crystals. The crystals produced are insoluble in…

A:

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.