Suppose that a saturated potassium bromide solution at 70°C is cooled to 20°C, how much crystals can be produced if: 1. the original solvent is 654.00 g? 2. the dissolved crystal is initially 54.90 g? 3. Right before crystal appear, calculate the concentration of the solution.

Q: is This is an oxidation/reduction equation: ___CH3COOH(aq)     +     ___ H2O(l)            ___…

A: Given,  Consider the reaction,  CH3COOH(aq)  +    H2O(l)     < == >  CH3COO− (aq) +  H3O+ (aq)…

Q: Methane-producing bacteria convert liquid acetic acid (CH3CO₂H) into CO₂(g) and CH₂(g). AS° ΔΗ, Ο…

A: CH3COOH(l) = CO2(g) + CH4(g) ∆H0rxn = ∆H0f(product) -∆H0f(reactant)             = ∆H0f(CH4 +CO2) -…

Q: From the following list of aqueous solutions and water: Select the one with the highest boiling…

A: we have to calculate freezing point of sucrose solution  and find the solution with highest boiling…

Q: 1.1 2NH3(g) (b) 3H2(g) AH is negative N₂ (g) + From the given reaction at equilibrium above, use Le…

A: Le Chatelier principle says that equilibrium will shift in such a way so as to undo the effect of…

Q: In the molecule shown, the portion highlighted in red is called the ( ) group. o alkoxy O alkyl o…

A: The ester is formed from alcohol and carboxylic acid. The name of an ester is written as an alkyl…

Q: 5. Give the formula for a) lead (II) phosphate and b) lead (IV) phosphate. If you can't get…

A: Here we are required to find the chemical formula of the given compound

Q: So, in this lewis acid-base reaction, do we need to draw lone pairs or not? Why or why not? Thank…

A: In the given lewis acid base reaction :  Is it necessary to represents the lone pair of electrons ?

Q: HO HO OH HO The structure shown here is best described as a(n) ribonucleic acid deoxyribonucleic…

A:

Q: Give the relationship between the pair of molecules below by selecting from the choices below:   A.…

A:

Q: Calculate the solubility at 25 °C of CuBr in pure water and in a 0.0120M CoBr₂ solution. You'll find…

A:

Q: Question 4 Calculate the density of CaO. Given: Ionic radii: Rea² = 0.106 nm; Ro² = 0.132 nm Molar…

A: Formula for thia is, Density = (Mass*No of atoms per unit-call)/(edge-length)3

Q: Date: Part B Data - Quantitative Analysis of Precipitation Reactions and Limiting Reactant Problem…

A: # Data Analysis: #1: Mass of Ba3(PO4)2(s) precipitated = 1.5563 g

Q: Question 4 The following reaction is key when investigating the precipitation and dissolution of…

A:

Q: Provide the common name for (a). Draw the structure for (b). Place you answers in the boxes…

A: The common name for the structure is sec-butyl bromide. We can see that it is a 4 carbon chain and…

Q: The valency electrons are there in Chlorine, Phosphorous, Oxygen and Carbon are respectively. 7, 5,…

A:

Q: Directions: Enlist uses of polymers. Write your answer on a separate sheet of paper. 1. 2. 3. 34567…

A: Any substance made up of large marcromolecules which are the repetitive arrangement of similar…

Q: Can this be solved again? I do not think the answer is correct

A:

Q: Calculate the ph of 0.24m sr(oh)2 aq 0.05m nh3 (kb=1.8*20^-5)

A:

Q: Parameters to use for the problems that follow: K = 1.38 × 10-23 J/K q = 1.6 × 10-¹⁹ coulombs For…

A: Solutions- Given data- Nd = 4 x 1015 cm-3 Ni = 1 x 1010 cm-3  T = 300K

Q: 21. During the combustion of ethane (C₂H6) 200. L of carbon dioxide are produced at 780. mm Hg and…

A: The alkane undergoes combustion reaction to form carbon dioxide and water.  The ideal gas equation…

Q: Balance the following equation using the half-reaction method: MnO4 (aq) + Fe2(aq) + H(aq)-->…

A: A redox reaction is balanced by balancing the mass and charge. Hence the number of atoms of all the…

Q: Using standard reduction potentials from the ALEKS Data tab, calculate the standard reaction Round…

A: we have to calculate the standard reaction free energy

Q: 2. Based on your classification, predict the approximate pH of a solution containing the substance.…

A: HF is a  acid.

Q: Consider the reversible reaction at 2000°C, 2NO(g) + O₂(g) + N₂(g) Kc = 100.0 If the system…

A:

Q: Calculate the standard enthalpy change for the reaction 2 Al (s) + Fe2O3 (s)  2 Fe (s) + Al2O3 (s)…

A:

Q: Valence electrons are a. not associated with a particular atom b. in various orbits around the…

A: Valence electrons are ?

Q: In synthesizing primary (1⁰) amines by alkylation of NH3, explain how we can prevent the formation…

A: Given statement is :  In synthesizing primary (1⁰) amines by alkylation of NH3, explain how we can…

Q: Q4. Draw the molecular diagram of given compounds and predict the bond order and comment on whether…

A: The molecular diagram is used in terms of the basis of molecular orbital theory. This approach…

Q: A compound commonly sold in aqueous solution for use as a disinfectant, antiseptic, and preservative…

A: Preservatives: Preservatives are chemicals that are used to prevent the decomposition of food or…

Q: Which of the following binding constants has the highest affinity?

A:

Q: 4Sº (J/mol.K) CH3CO₂H (1) 159.8 CO₂(g) 213.8 CH₂(g) 186.2 Calculate ΔΗ kJ rxn (round to 3 sig figs)…

A:

Q: 15. For the molecules:2,2-dimethylhexane, and octane. Which of the 2,3,4-trimethylpentane following…

A:

Q: Complete the balanced chemical equation for the following reaction between a weak base and a strong…

A:

Q: What is the equivalent of 93.5 Celcius in kelvins? a. 366.5 K b. -179.5 K c. 61.5 K d. 179.5 K

A: We know , 1°C = 273 K  So, 93.5 °C = (93.5 + 273 ) K                      =  366.5 K  (option - a)

Q: A 10 g sample of Mg504 · 7H₂0 (246.489/mol) was heated in an oven at 105 °C until evaporated all the…

A:

Q: Q2. For the compounds below: Draw an appropriate Lewis structure, calculate the formal charge on…

A:

Q: For the reaction 2 A + 3 B → 4 D + 5 E, how is the rate of reaction expressed in terms of rate of…

A: Given reaction, 2 A + 3 B → 4 D + 5 E rate of reaction expressed in terms of rate of disappearance…

Q: Polymer Foams also known as foamed polymers of engineering which has wide variety of consumer…

A: We have to give the example of two polymer member from the polymer foam class. The given options are…

Q: Directions: Give common examples for each of the following. Write your answerona separate sheet of…

A: Type                                            Example…

Q: An iron (Fe) bar weighed 664 g. After the bar had been standing in moist air for a month, exactly…

A:

Q: How much energy will be released by cooling 28.2 grams of steam from 118°C to 37°C?   cice = 2.02…

A: Here we have to determine the amount of heat required to convert 28.2 g of steam from 118°C to…

Q: You prepare a solution of protein and its ligand where the initial concentrations are [Protein] = 10…

A:

Q: (E)-1-2- Diphenylethene reacts with Br 2 /CCI4 (see reaction) the reaction product is obtained (A)…

A:

Q: A concentration cell consists of two Ni/Ni²+ electrodes. One electrode contains 0.15 M Ni²+ and the…

A: we have to write the overall redox reaction for the cell

Q: Decrease the solution volume slowly until the word Saturated! appears and only one crystal is seen.…

A:

Q: 1. Discuss the evolution of the “models” of an Atom. Be concise.

A:

Q: Which of the following would be expected to have the highest solubility in water! Η Η | I H-C-C-O-H…

A: Introduction :-  Lower Alcohols are highly soluble in water.  H2S is moderately soluble in water.…

Q: Match the pictures in each question with the descriptions of solubility. This picture shows A) an…

A: The given picture represents ionic solid and water. Ionic solid is present below and the water is…

Q: A container contains 45 moles of a gas at a temperature of 200°C. What is the pressure inside the…

A: We can solve this problem by using ideal gas equation PV = nRT Where  P = pressure V = volume T =…

Q: 1.1 1 (a) N₂(g) + O₂(g) 2NO (g) AH298 +180 kJ mol-¹ From the equilibrium shown above, use Le…

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.