Explain why the van't Hoff factor for K2SO4 is less than its predicted value.   The hydrated K⁺ and SO42- ions attract one another and effectively increase the number of free particles in the solution. The hydrated K⁺ and SO42- ions attract one another and effectively reduce the number of free particles in the solution. The number of moles of formula units is greater than the number of free particles in the solution. The hydrated K⁺ and SO42- ions repel one another and effectively reduce the number of free particles in the solution.

Q: 1. Which refers to the motion of charges from one place to another? b. Electricity 2. Which of the f...

A:

Q: 1. Name these aromatic compounda properly. a) b) NHz

A: (1) Given that -  Aromatic organic compounds -  (a) This compound contains acetophenone as a main co...

Q: (a) SO,Ph i. nBuli, THF Ph Ph sO,Ph i. PHCHO Na/Hg OAc i. Ac,0

A: First nBuLi remove acidic hydrogen  after that negative charge attack on electrophile after that neg...

Q: 5. Ignoring double-bond stereochemistry, what products would you expect from elimination reactions o...

A:

Q: A9CN + CN¯ → [Ag(CN)2]¯

A: Oxidizing agent- Species which has tendencies to get reduced by gaining electrons.  Reducing agent- ...

Q: Use Beer’s Law to calculate the concentration of a sample of cyanmethaemoglobin if it has an absorba...

A:

Q: Dinitrogen tetroxide is 18.46 per cent dissociated at 25°C and 1.00 bar in the equilibrium N2O4(g) ⇌...

A: For the reaction.,  N2O4(g) ⇌ 2NO2(g). Dinitrogen tetroxide is 18.46 per cent dissociated at 25°C an...

Q: Suggest a mechanism behind the reaction    NO(g) + Cl2(g)  à  NOCl(g)  + Cl(g) with the rate law    ...

A: Chemical kinetics is branch of Physical chemistry in which we study the rate of chemical reactions w...

Q: Q3/ one mole of mercury has the values of a = 1.81×104 K' and K=4.04 x10-11 Pa 'at 298 K and V= 14.8...

A: “Since you have posted a question with multiple questions, we will solve the first question for you....

Q: 1. a. What is the pH of a solution prepared by adding 25.0 mL of 0.10 M acetic acid (Ka ) and 20-x: ...

A: 25.0 mL of 0.1 M acetic acid and 20 ml of 0.1 M sodium acetate are mixed. Acetic acid is a weak acid...

Q: 5. Propose the structure of a compound that exhibits the following 'H NMR data: (c) C4H100 0.90 8 (6...

A: The given compounds mainly consists of C, H, and O.  As heteroatoms are present in these compounds, ...

Q: The boiling point of an alkane is lower than the alkane immediately after it in the series. Select t...

A: Boiling point is the temperature at which a liquid converts into vapour at given pressure. 

Q: Consider H2Se03(aq) --> H+(aq) + HSEO3-(aq) where [H+] = [HSE03-] = 0.200 M. The K %3D = 0.907 at so...

A: We are given [H+] = [HSeO3-] = 0.2M K = 0.907 We have to find the molarity of H2SeO3

Q: A solution contains a mixture of pentane and hexane at room temperature. The solution has a vapor pr...

A: Given :-  vapor pressure of solution = 248 torr  vapor pressure of pure hexane = 151 torr  vapor pre...

Q: Gaseous ethane (CH,CH,) reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide (CO,) ...

A:

Q: For the following pair of reaction diagrams, identify which of the pair is catalyzed. Explain your r...

A: Catalysts are the substances that speed up biochemical reactions. These do not alter the enthalpy an...

Q: The mass of 5.20 moles of glucose, C6H12O6 is

A:

Q: How many grams of nitrogen gas are present in a 10.0 L vessel at 19°C and 1.60 atm?

A:

Q: NaOH NaCIO3 NaC2H302 Са(ОН)2 BaSO4 ZNCO3 AIPO4 AgNO3

A: polyatomic ions ions that are made up of two or more atoms

Q: This structure is loratidine, is a second generation antihistamine that is used in the management of...

A: Here we have to find the hybridization of carbon atom indicated as C-20 in the structure of loratidi...

Q: The following is an electron configuration for one of the elements on the periodic table: [Ar] 4s²3d...

A: The electronic configuration of any element gives information about the chemical and physical proper...

Q: Combustion of alkanes is an oxidation process. Select the correct response: O True False

A: Yes, Combustion is an example of an oxidation reaction. Many fuels or hydrocarbon contain carbon and...

Q: Sighting along the appropriate C-C bond of neopentane C(CH3)4: a) Draw its Newman projections. b) Ho...

A:

Q: Question 14 Blank 1 is called the universal solvent because of its capability to dissolve more subst...

A: (Q14) Water is known as universal solvent. It is because of its ability to dissolve more substances ...

Q: QUESTION 5 Consider two different metals: Metal X and Metal Y. Metal X crystalizes into BCC (body-ce...

A:

Q: The reaction HSO3 (ag) + H* (aq) + SO3 has K = 0.01 at 300 K. (aq) An equilibrium mixture at 300 K c...

A:

Q: What mass of salt (NaCl) should you add to 1.64 L of water in an ice-cream maker to make a solution ...

A:

Q: G periodic table - Google Search How many moles of lithium hyd x Question 8 of 8 What is the mass in...

A: Number of moles is calculated by dividing the given mass with molecular mass.

Q: In a laboratory set-up, the brick and iron were placed on top of the heaters separately, and when it...

A: Given, The brick and iron are placed separately on the top of a heater and they are heated. Brick is...

Q: Suppose we have a cell with a resting membrane potential of -70 mV. The Na+ concentrations in the EC...

A: Since you have asked a question with multiple subparts, we will answer the first three subparts for ...

Q: tu

A: Solutions of these two compounds makes no such differences to separate.

Q: Question 23 Nitrogen ions are added to the soil by the formation of organic and inorganic acids when...

A: Organic acid is an organic compound which have acidic properties. The most common organic acids are ...

Q: Rotation around a single bond gives rise to isomers in alicyclic alkanes. Select the correct respons...

A: Isomer are pair of compound which although have same molecular formula but different structural form...

Q: Draw the major product of this reaction. Ignore inorganic byproducts. Br2 (1 equiv)

A: Bromination of alkyne gives trans alkenes

Q: Balance the following equations: a) Fe2O3 + HNO3      =       Fe(NO3)3 + H2O b) NO2 + H2     =    ...

A: A chemical equation should always be balanced. That is, the number of atoms on both the sides of the...

Q: 1. Explain why you only see four absorptions. Include why you only see 2 absorptions in the C-O regi...

A: We use 13C NMR spectroscopy to find the structure of the compound using 13C carbon which is NMR acti...

Q: Give the name for the following complexes according to the latest IUPA nomenclature. (i). [Sn(CN)3CI...

A: We have been given some coordination compounds and asked to do nomenclature. 

Q: Consider the following mechanism: A2 + B2 → R+ C (slow) A2 + R → C (fast) (a) Write the overall bala...

A: An intermediate of the reaction is that species which is involved in the mechanism but not involved ...

Q: Jamel is to receive Cleocin 275 mg IV for 6.00 hr. The concentration of the solution is 5.00 mg/mL. ...

A: Given :-  Amount/mass of drug = 275 mg  Concentration of solution = 5.00 mg/mL  To calculate :-  Vol...

Q: The pH of unbuffered water, such as rain, is decreasing consistently over time as atmospheric CO2 co...

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

Q: 1. Answer the following questions based on the given tables. % Fatty acid by weight Fat or oil Palmi...

A: Since you have asked a question with multiple subparts, we will answer only first 3 subparts for you...

Q: 2. Expand the following bond-line representati ons to show all the atoms inclu ding C and H, (a) (6)...

A:

Q: A solution is made by mixing 13,0 g of solid barium hydroxide and 50.0 mL of 100 M nitric acid. Writ...

A: Neutralization reaction is reaction where an acid and base react to form water and salt  Here we are...

Q: Question 5 Which of the following situations can affect the equilibrium of the ions in the soil? (A ...

A: The situations that can affect the equilibrium of the ions in the soil are, Fertilization Leaching ...

Q: Provide the IUPAC name of the compound. Br

A:

Q: 5. The chemical reaction presented below is not balanced. Balance it and calculate AH° and ASurr for...

A: CO(g) + H2(g) ----> CH3OH (l)  

Q: Explain the properties of solids and liquids using the kinetic energy molecular theory.

A: The kinetic energy molecular theory state that if the space between the molecules is more then they ...

Q: Compare the two structural formulas in each set. Do they represent the same compound, represent cons...

A:   Constitutional Isomers :  Compounds having the same molecular formula but with different structure...

Q: 2. Complete the table below. Indicate what is observed if each test is positive. State what this res...

A: Completion of the table in which the indication what is observed if each test is positive is given b...

Q: 2. In HPLC analysis, why Would peak area is preferred to peak height in evaluating the caffeine conc...

A: Since you have asked multiple questions, we will answer the first question for you. To get the remai...

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.