2. If the standard enthalpy change, (AH°) and the standard entropy change, (AS°) for the dissolution of borax at 298 K is 60 kJ and 150 J K respectively, then calculate the standard Gibbs free energy change (AG°) value (in kJ) at that temperature.

Q: Why one should swirl vigorously during the process of titration?

A: If you tirate a base into an acid with phenolphtaleine as an indicator, the indicator will go from…

Q: How many grams of NaCl would be needed to prepare 100. mL of a solution of 0.250 M NaCl? Show your…

A:

Q: If a positron is to be emitted spontaneously, how much more mass (as a minimum) must an atom of the…

A: As in positron emission, the nuclear positive charge and hence the atomic number decreases by one…

Q: 2) Consider a mixture of acids that is 0.100 M formic acid, HCHO2, and 0.150 M HCIO. )Write the…

A:

Q: Sources of Error Determine the relationship between the observed/apparent value (EX) VERSUS that of…

A: Given: Not all the solid was transferred during the filtration of the precipitate.

Q: HBr 1,4-pr oduct?

A:

Q: The anode can always be defined as the:  a. electrode at which reduction occurs b. electrode at…

A:

Q: Pls give me the answer to this one so I can study

A:

Q: Which of the following bonds will be most polar? Group of answer choices C-O N-F N-O C-F Cl-F

A: The most polar bond from the given choices = ?

Q: How was the precipitate obtained after filtration?   By scraping from the filter paper and…

A: Filtration is used to separate an insoluble solid from a pure liquid or a solution

Q: Refer to the image attached for the following questions Which structure has the greatest number of…

A: In the given structures we have to find out the no. Of pi electrons.

Q: Identify which type of isomer the following structures represent. но HO но, OH Positional isomer…

A:

Q: Solute particles influence the properties of a solution. What is NOT assumed when understanding…

A: Colligative properties are the properties of solution which is guided by the number of solute…

Q: What is the stoichiometric ratio between the reaction of barium chloride and sulfate ions? -2 A А) 1…

A: To find: Stoichiometric ratio between the reaction of BaCl2 and sulfate ions. The  balanced reaction…

Q: Refer to the attached photo for the following question If a blue litmus paper is dropped to a…

A: Litmus paper are indicator use to test acidity and basicity of the solution  Here we are required to…

Q: QUESTION 6 Balance the following oxidation-reduction reaction that takes place in base, OH, by the…

A: Detail solution is given below

Q: atom was closest to the negative side of the molecule, you'd enter "H" in the last column of the…

A:

Q: The potential of a silver electrode correlates reproducibly with the concentration of chloride ions…

A: Electrochemistry is branch of chemistry in which we deal with oxidation and reduction reaction.

Q: • The temperature of a 35.2 g sample of iron increases from 23.7 °C to 29.5 °C. If the specific heat…

A: Given:: Mass of Fe, m=35.2 g  Initial, T1=23.7℃ = (23.7 +273) K=296.7℃ Final, T2= 29.5 ℃= (29.5+273)…

Q: What is the osmotic pressure (at 20 °C) of a solution made by dissolving 13g of sucrose in 117g of…

A: Mass of sucrose = 13 g  Total volume of solution = 125 ml  Temperature = 20 °C  Osmotic pressure = ?…

Q: A solution contains 3.86g of magnesium chloride and 250g of water. Compute for the freezing point…

A: Freezing point of solvent is greater than freezing point of solutions

Q: Determine the mole fraction of CH3OH in a solution prepared by dissolving 36g of alcohol in 1000g of…

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

Q: A chemist gathers 3924Kj from combusting 65g of ethane What is the deltaH of a 93% yield

A: Given the mass of ethane taken = 65 g  Experimental amount of heat released during combustion = 3924…

Q: H. ame the compounds

A:

Q: Balance and translate the given chemical equation to a word equation.         Ca(OH)2(aq)  +…

A: Ca(OH)2(aq) + H3PO4(aq) --> Ca3(PO4)2(s) + H2O(l)

Q: Identifying titration curves Vhat to notice when making the identification a Use the trends…

A: Solution- Data given-The graph of three different types.

Q: Examine the following equilibrium table for the reaction shown at the top of the table. CO(g) +…

A:

Q: The hall-de of radon- 222 is 25 days A bomeonner med aradon test kat to sample the air a ha bome,…

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

Q: What is the expected bond angle in the tetrahedral electronic domain geometry? You should assume…

A:

Q: Find the molality of a solution made by adding 8g of NaOCI to 5000g of water. (MW: Na-23 g/mol, O-16…

A:

Q: The density of dry air at 25 °C and 1 atm pressure is 1.184 mg/ml. What will be the density if the…

A: Relative humidity of air is given by: ϕ=PH2OP*H2O where, PH2O and P*H2O are the vapor pressure of…

Q: please determine the molar solubility of Mg(OH)2 in a solution buffered at a pH of 8.

A: Given:: pH = 8 Ksp of Mg(OH)2= 5.61×10-12 Molar solubility of Mg(OH)2= ?

Q: 2. Calculate the bond length of the OH molecule in the gas phase if the first two lines of the…

A:

Q: Boyles law the volume of gas at 209 kPa is 57 ml if the pressure is increased to 386 kPa what is the…

A:

Q: 88 dentify which of the following metals will be oxidized by 1.00M HCL. H* will be reducea Ag above…

A: Elements which have higher oxidation potential than HCl , are oxidized by HCl.

Q: Refer to the equation below to answer questions The relative arrangement of bromine atoms in the…

A: Organic reactions are those in which organic reactant react to form organic products. In this…

Q: What was done to ensure that there are no more chloride ions present in the precipitate? Addition of…

A: Here we have to choose the correct method to ensure that there are no more chloride ions present in…

Q: What is the chemical reaction for the combustion of PVC? Which, if any, are environmental…

A:

Q: Consider a tritation of 25.00 mL of 0.112 of NaOH with 0.100 of HCl. a) determine the pH before…

A: Given,  A titration of 25.00 mL of 0.112 of NaOH with 0.100 of HCl  The pH of the solution before…

Q: What is the pressure in atm of 0.042 mole of gas at 561 mL and 32 F?

A:

Q: 72. Identify the SYSTEMATIC name of the molecule that is illustrated in this item. O-4 o=S=O O A.…

A: The IUPAC name of the compound can be written on the basis of the number of carbon atoms in the main…

Q: Chemists frequently show H+(aq) and water's interaction as forming H3O+: H+(aq) +H2O(l) -> H3O+(aq)…

A: Electron domain geometry of H3O+ = ?

Q: Draw the Lewis dot structure for CBr4 .            Choose the answer below that gives the (I)…

A: Lewis’s structure: Lewis’s bonding theory is based on the octet rule. The Lewis structure is a…

Q: Refer to tne reactiOH Below 1o ans Items HBr- -> --- CIH CIM CIH

A: ->One double bond required one mole of HBr .

Q: Degree of saturation with 5 ml of water in a test tube A, with small amount of sugar. what will…

A: Saturated solution is solution formed when maximum amount of solute is dissolved in that amount of…

Q: the reaction of potassium permanganate with a hydrocarbon, it usually is converted to MnO2. What…

A: KMnO4  potassium permanganate when converted to MnO2 we can find oxidation number of Mn in potassium…

Q: 00g of Al2S3 dissolved in H2O to make 15.0 L of solution. What is its normality? (MW: Al = 27g / mol…

A:

Q: what is the name of this azo dye?

A:

Q: the given equation using the valence change method. Identify the reducing agent and the oxidizing…

A: Given that -  Following unbalanced redox reaction -  Cu   +  HNO3  ->    Cu(NO3)2  +   NO…

Q: 000 K=2 At equilibrium? At equilibrium? yes O no yes no K= 4 K= 11 At equilibrium? At equilibrium? O…

A: Here K is the equilibrium constant and is given by the expression  K = concentration of product /…