QUESTION 1 An aqueous solution containing 72.9 g of an unknown substance in 611 g water was found to have a freezing point of -1.69 °C. Calculate the molar mass of the unknown substance (Kf for water is 1.86 °C/m)

Q: 13. While cleaning your attic, you found your old rock collection. If 83.58% of the rocks have a…

A: To find the average mass of rock collection we can use weighted average method.   In this method we…

Q: When the pH is below the pKa, is the buffer species more or less than 50% protonated? Explained in…

A: Given -> pH is below the pKa value.

Q: Match the amino acid description with their 1-letter code Amide-containing amino acid Optically…

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Q: Show that an exothermic reaction accompanied with an increase in enthalpy always occurs…

A: Change in Gibbs free energy of the process is    ∆G = ∆H - T∆S During the phase transition ∆G =0 For…

Q: A marble weighs 4951 µg. How much does it weigh in grams? Please round your answer to the 5…

A: Consider the given information is as follows: Weight of the marble = 4951 µg Weight of marble in…

Q: D. Grupos funcionales D.1 Complete la siguiente tabla COMPUESTO CH3-OH CH3-CH2-CH3 CH₂=CH₂ CH3-O-CH3…

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Q: replicate determination of the lead content of a blood sample (0.752, 0.756, 0.752, 0.751 and 0.760…

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Q: A solution of NaCl(aq) is added slowly to a solution of lead nitrate, Pb(NO3)2(aq), until no further…

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Q: The recommended single dose for acetaminophen is 10.0 to 15.0 mg/kg of body weight for adults. Using…

A: Given, The recommended single dose of acetaminophen = 10.0 to 15.0 mg/kg That means, The minimum…

Q: #5: Estimate the full contour length of a low-density polyethylene (LDPE) (CAS# 9002-88-4) chain…

A: average degree of polymerization is a weighted mean of the degrees of polymerization of polymer…

Q: 2.5. 69.0 2) Part A If the aluminum block is initially at 25 "C, what is the final temperature of…

A: Mass of aluminum (m) = 69.0 g Specific heat capacity of aluminum (C) = 0.903 J/g°C  The initial…

Q: The distance between point A and point B is 1,294.0 miles. If a vehicle is driving an average speed…

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Q: Match each pollutant with their final product in our atmosphere. SO2 NO₂ CO CH4 1. CO2 2. H₂SO4 3.…

A: Answer: In this question we have to identify the chemical reaction of the air pollutant that takes…

Q: d) If the uncertainty in one volume reading for the class A burette used is 0.03 mL., find the…

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Q: A farmer applies 1655 kg of a fertilizer that contains 10.0% nitrogen to his fields each year.…

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Q: the factors that affect the rate of diffusion of substances

A: The process of transport known as diffusion involves moving a substance from one area of higher…

Q: Different masses of aspirin (e.g 10mg, 100mg, 1000mg) used in an acid base titration. what could be…

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Q: Q2. Define () the following (in English words). 1. Second law of thermodynamics: 2. Intermolecular…

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Q: If I have a mass of 77.9 kg and a volume of 77.9 L, how dense am I in grams per microliter?

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Q: How many moles of CO₂ are in 108.0 grams of CO₂?

A: Answer: To solve this question we have to use the relation between number of moles of CO2, its given…

Q: X OH OH

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Q: Draw the Lewis and resonance structure for PO43-

A: The Lewis structure of PO43- ion is important because it is required to draw phosphate ion resonance…

Q: how many moles of NaOH is in 535.0 mL of a 0.067 M solution of NaOH?

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Q: A student needs to prepare 50.0 mL of a 1.00 M aqueous H₂O₂ solution. Calculate the volume of 4.9 M…

A: Given, Stock solution Concentration of H2O2 solution (M1) = 4.9 M Volume of H2O2 solution (V1) = ?…

Q: Construct the possible bonding, antibonding, and nonbonding molecular orbitals from combinations of…

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Q: barometric pressure when measuring the boiling point of water is 773.24 mm on a Hg column. Hint: An…

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Q: How many moles of solute particles are present in 1 L (exact) of aqueous 0.025 M HNO3?

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Q: F Choose the factor that best explains the increased stability of the first structure's conjugate…

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Q: 3. Assign formal charges to charged atoms in these intermediates based on the following Lewis…

A: Given intermediates are : Assign formal charge on the required atoms ?  Formal charge is the charge…

Q: Which set of values is thermodynamically AG/KJ >0 >0 0 impossible? AS/J K¹ >0 0 <0 Keq MAAAB

A: Given reaction is :  Which set of values is thermodynamically impossible ?  Table is :  Here,  ΔG =…

Q: If you have a mixture of 10 lb. sunflower seeds which cost 32¢ per pound and 16 lb. of cracked corn…

A: #Q.1: The mixture has 10 lb sunflower seeds and 16 lb cracked corn. Cost of sunflower seeds = 32¢ /…

Q: Problem 1.41 ralla two sp³ hybridized carbons. Express your answer as a condensed structural…

A: sp3 hybridised carbons contain single bonds. sp2 hybridised carbons contain double bonds. sp…

Q: A chemist must prepare 875. ml. of 335. M aqueous copper(II) fluoride (Cul) working solution. She'll…

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Q: Glutamic acid has three ionizable groups. The pKa of α-COOH is 2.19; α-NH 3 + , 9.67; and the…

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Q: A piece of metal with a mass of 13.2 g was dropped into a graduate cylinder containing 17.00 mL of…

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Q: is the smallest chemical compounds found in crude oil in terms of molecular weight. O gas O liquid O…

A: Crude oil is a mixture of volatile hydrocarbons.

Q: Chemistry 1) Take 1 mL of a liquid bacterial culture (aka original culture) and mix it with 9 mL of…

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Q: - What is the percent concentration of a 300-mM solution of CaCl₂? 65 centration of 150

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Q: While cleaning your attic, you found your old rock collection. If 83.58% of the rocks have a mass of…

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Q: 9. Assign oxidation number to each element, then classify each of the following unbalanced…

A: Oxidation stare: the total number of electrons that an atom either gains or loses in order to form a…

Q: Express the concentration of a 0.0590 M aqueous solution of fluoride, F, in mass percentage and in…

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Q: b) In a second experiment to verify the value of x, the pharmacist heated a 3.752g sample of the…

A: Given, mass of sample of lysine hydrate =3.752 g mass of sample after heating =  3.278 g

Q: Calculate the correction chat needs to be appliec o a T 89°C' if barometric pressure when measuring…

A: GIVEN Observed boiling point = 1000  C + Correction

Q: 68. What is the correct chemical formula for aluminum chlorate? O Al3C103 OAICIO3 O Al(CIO3)3…

A: Please note- As per our company guidelines we are supposed to answer only one question. Kindly…

Q: -An aqueous solution contains 3.6 mM of total ions Down below is what needs to be answered Thanks:)

A: Given that  Aqueous solution of FeCl3 contains 3.6 mM of total ions.  We have to calculate the…

Q: 76 pound flask of mercury costs $156.50. The density of mercury is 13.534 g/cm^3. 1)Find the price…

A: Given: Mass of flask = 76 pounds Density of mercury = 13.534 g/cm^3

Q: What is the molecule and the functional group

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Q: pleasee convert this with solution 759g-cg 466.75qt-mL 610.76min-ms

A: •Here we have to convert one given unit to another. • Here:- g= grams                cg=centigram…

Q: Q3: Consider the reaction, NO+ONO+O using the data in the table. Calculate AG of the reaction.

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Q: A substance has a melting point of -25.0°C, an enthalpy of fusion of 1200 Jg¹; specific heats for…

A: When a solid substance is heated its temperature increases and at its melting point it will be…

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.