Direction: Discuss and answer the following questions. . What is the purpose of using rock salt in ice-cream making?

Q: Questi 12 of The percent by mass of glucose (MM = 180.2 g/mol) in an aqueous solution is 23.9%. What...

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Q: Find the activity coefficient of Cu2+ using the Mean Salt Method. (HINT: Start by solving for the ac...

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Q: 1. For AAS analyses, the following are atomization techniques except- A. Hydride atomization B. Che...

A: Atomic absorption spectrometry (AAS) is a technique in which free gaseous absorb electromagnetic rad...

Q: Experiment name: Heat of solution( KNO3 with H2O and Tris with HCl) in 6772 Calorimetric Thermometer...

A: The purpose of the given experiment is for calculation of heat of reaction. That is find out enthalp...

Q: 1. What is the percent by mass of 5.0 g of iron (1I) sulfate dissolved in 75.0 g of water?

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Q: 1. Predict the effect of each of the following conditions on the calculated concentration of NaOH. E...

A: A question based on analytical process that is to be accomplished.

Q: The pOH of a basic solution is 5.63. What is [OH⁻]?

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Q: When doing extraction: Statement 1: Wash extract with saturated salt solution if organic compound is...

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Q: When a 19.5 mL sample of a 0.433 M aqueous acetic acid solution is titrated with a 0.434 M aqueous b...

A: Midpoint or half equivalence point is the point at which half of the acid has been neutralised.  At ...

Q: For a 0.00554 mol sample of H2 and a 0.00912 mol sample of N2, total pressure is 23.44 torr. What is...

A: Given, moles of H2 = 0.00554 moles Moles of N2 = 0.00912 moles Total pressure, pT = 23.44 torr

Q: Balance the reaction, do not leave any fractions, don't leave anything blank,  then answer the quest...

A: Balanced reaction can be defined as the reaction in which equal number of atoms of every element is ...

Q: A chemist needs to create a 50% HCI solution. (HCI is hydrochioric acid. A "50% HCI solution contain...

A: Answer: This question is based on the mixing of two different solutions in such a way that we can ob...

Q: water in a container at a temperature of 30 °C. Ciron = 0.444 J/g °C Cwater = 4.184 J/g °C Pwater=1 ...

A: Mass of iron = 20 g Initial temperature of iron = 120oC Volume of water = 300 mL Initial temperature...

Q: The porosity of the PAGE gel is determined by the ratio of acrylamide and the amount of. (TEMED, bis...

A: We have to tell the porosity of the PAGE gel is determined by the ratio of acrylamide and the amount...

Q: For each molecule, determine the hybridization of the central atom. Use orbital box diagrams to show...

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Q: Use floating decimal in your solutions but express all final answers to four (4) decimal places and ...

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Q: Waht is the composition of the reverse phase chromatography?     non-polar stationary phase - non ...

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Q: When comparing molar solubility in pure water and that from potassium iodate solution should the mol...

A: Molar SolubilityA substance's solvency item (Ksp) is the proportion of fixations at balance. Molar s...

Q: Predict the products for each of the following reactions and provide an explanation for the stereoch...

A: Diels-Alder reaction : is a reaction between diene and dienophile gives a six membered cyclic ring. ...

Q: If 3.21 mol of a gas occupies 56.2 Lat 44 °C and 793 torr, 5.29 mol of this gas occupies __________ ...

A: Given :-  Initial moles = 3.21 mol Initial volume = 56.2 L  Final moles = 5.29 mol  To calculate :- ...

Q: Experiment name: Heat of solution( KNO3 with H20 and Tris with HCl) in 6772 Calorimetric Thermometer...

A: EstimationsNormalization An example of tris (hydroxymethyl) aminomethane, generally called TRIS, is ...

Q: Leaking was observed from the separatory funnel used during extraction. Statement 1: The analyst rem...

A: A question based on analytical separations that is to be accomplished.

Q: Balance the reaction, do not leave any fractions, don't leave anything blank, then answer the questi...

A: Given,  (a). Balance the reaction, do not leave any fractions, don't leave anything blank, then answ...

Q: For this molecule complete the following: a. Use Valence Bond theory to write the atomic energy leve...

A: To draw orbital diagrams before and after hybridization for N atom and the marked carbon atom.

Q: Ether Cleavage What reagents are necessary to synthesize the molecule below. Pn ме ME MC

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Q: Hb + C,H12O6 + NaOH + C3HŞN C44H42FEN,O4

A: Hb is C2952H4464N3248O812S8Fe4.

Q: Question 5 The origin of the eEnergy released by a nuclear reaction O The number of atoms decrease u...

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Q: The pKa of finalic acid is 6.50. a. What is the pH of an equimolar solution of finalic acid and sodi...

A: Hii there, As there are multiple sub parts posted. we are answering first-three sub parts . If you n...

Q: A chemist needs to create a 50% HCI solution. (HCI is hydrochloric acid.A "50% HCI solution" contain...

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Q: A chemist needs to create a 50% HCI solution. (HCt is hydrochloric acid. A "50% HCl solution" contai...

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Q: Consider the following reaction equation of combustion of glucose, C6H12O6: a. Calculate the enthalp...

A: Mass of Glucose = 5.25 g C6H12O6 (s) + 6O2(g) ------> 6CO2(g) + 6H2O(g)

Q: Designate the relative positioning of the functional groups in your assigned molecule. Based on the ...

A: This molecule is synthesised from the cyclohexanone by nucleophilic addition of the cyanide which de...

Q: Get to know the general structure of an energy level diagram by labeling the follovwing. The molecul...

A: Given energy-level diagram:

Q: + 6 HCl(aq) → 2 AICI3(a9) + 3 H;O, + 3 H,O, 10. In the reaction, Al,O3(s) how many grams of AICI, wi...

A: This problem can be tackled by finding the no of moles of HCl in given mass and going through unitry...

Q: Pls do from I and onwards

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Q: 2. A solution is made by adding 25 mL of benzene to 80 mL of toluene. What is the percent by volume ...

A: given, volume of benzene (solute) = 25 mL volume of toluene (solvent) = 80 mL volume of solution = v...

Q: An aqueous solution of 43.80 mL of 0.240 mol L-1 NaCN is added to 43.80 mL of 0.240 mol L-1 Zn(NO3)2...

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Q: 3 Fish remain active in a region that experiences pelow-rero Hemperatures in whter: hian Specific he...

A: Water is a universal solvent and the lifeline to the organisms present on earth. The properties of w...

Q: Give the direction of spontaneity of the pairs A. Sn with Cd+2, B. Sn+2 with Cd, C. Cd+2 with H+ Giv...

A: Answer: Spontaneity of the reaction can be decided on the basis of cell potential. if the value of c...

Q: A) How many mL of ethyl alcohol are required to make a 2.36% (v/v) aqueous solution in a 200. mL vol...

A: Given,  A) How many mL of ethyl alcohol are required to make a 2.36% (v/v) aqueous solution in a 200...

Q: mixture of three components is separated using paper chromatography, and each component is analyzed ...

A: Given: Absorbance of standard solution- Compound A = 0.72 Compound B = 0.55 Compound C = 0.80 For un...

Q: How many electrons does a Co atom have in its 3⁢d subshell?     How many of those electrons are unpa...

A: Co is the symbol of Cobalt  Atomic no. of Co is 27 (total 27 electrons in its neutral state)

Q: Black Forest Biologicals, a biotech startup, has a promising Alzheimer's drug candidate Compound SLT...

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Q: Consider the following standard reduction potentials: 2H* + 2e- → H2 Sn+2 + 2e → Sn Cd+2 + 2e- → Cd ...

A:   Decreasing order of Standard reduction potential (SRP) values is Sn > Cd > H+  The one whic...

Q: A small amount of resin weighing 4.56g occupies a height of a 10-mL graduated cylinder equivalent to...

A: A small amount of resin weighing 4.56g occupies a height of a 10-ml graduated cylinder equivalent to...

Q: A buffer is prepared using 0.15 M HF and 0.15 M NaF. What is the pH of this buffer? pKa for HF is 3....

A: Given :-   [HF] = 0.15 M  [NaF] = 0.15 M  pKa for HF = 3.1  To calculate :-  pH of buffer

Q: Select the reaction(s) that illustrate a favorable negative enthalpy of reaction. A В R C D R R A C ...

A: A question based on chemical thermodynamics that is to be accomplished.

Q: How many electrons does a Co atom have in its 3d subshell? number of electrons: 3d elec How many of ...

A: In this question, we have to tell how many electrons are present in 3d subshell of Cobalt atom and a...

Q: Vacuum distillation lowers the boiling point of a high-boiling point liquid because of reduced atmos...

A: Boiling initiates when an applied or the atmospheric pressure is equal to the vapour pressure of the...

Q: AH = - 1.2 kcal/mol; Kp = 16 nM %3D OH 1 HO AH = - 6.0 kcal/mol; N. Kp = = 76 nM OH 2 करले HOl. AH =...

A: Biological macromolecules are involve in many reaction. Any organic drug is designed to bind with it...