What is the solubility of O₂ in water for a Heliox 75/25 gas mixture (75% He and 25% O₂) total pressure of 2.8 am at 25°C.7 M -13x10- 1.36mes10-4rac(Mat for O₂ at 25°C. atm 0.15x10PM 9.1x105M 5.9×10¹ M 19x105M QUESTION 9

Q: A solution is formed by dissolving 14.2 g of sodium hydroxide in 699.4 g of water. What is the…

A: Formula used        molality = no.of molekg of solvent No.of moles =Given mass of NaOHMolar mass of…

Q: a) The weaker base is b) Its conjugate acid is c) The species that predominate at equilibrium are…

A: Ans: a) The weaker base is Bromide ion Br- Explanation: Weak bases are the basic substances that do…

Q: Draw the structures of the compound that would give the spectral information below, and explain your…

A: Given spectral data,

Q: An organic compound always contains what element? Select one: O A. Nitrogen O B. Oxygen C. Carbon O…

A: organic compounds describe a  a large class of chemical compounds. Elements present in organic…

Q: Question 6

A: Given information:Molarity of calcium nitrate solution = 0.800 MVolume of solution = 50.00 mL

Q: a. Identify the anode reaction, cathode reaction, and cell reaction.

A:

Q: 2. If you wish to use 20 mL of 0.10 M NaOH to react fully with potassium hydrogen phthalate (KHP),…

A: The chemical reaction taking place between potassium hydrogen phthalate  (KHP) and sodium hydroxide…

Q: 4. A sample of 2.12 g of copper was heated in an oxygen atmosphere until no further change took…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: 8. A 1dm aqueous solution contains 6.78g of barium hydroxide, Ba(OH)2. What is the pH of the…

A: Given : Mass of Ba(OH)2 = 6.76g

Q: Consider the following chemical reaction: 4 Al + 3 02 --> 2 Al203 If 12.85 g of Al reacts completely…

A: We have balanced reaction equation ,12.85g of Al , 18.42g of product formed. We have to calculate…

Q: Which compound is best represented by the following IR spectrum? Major peaks = 2971 (b), 2940, 1712,…

A: Infrared spectroscopy or IR spectroscopy is the spectroscopy that deals with the infrared region of…

Q: Assuming it behaves as an ideal gas, calculate the density of nitrogen, N,, at STP. density: g/L

A:

Q: C. 100. mL of ethanol (C2H5OH) in 500. mL of solution (The density of ethanol is 0. 6. How many…

A: One of the Concentration measured i methods is Molarity  method  Molarity=moles/liter M=weight…

Q: The Kc for the following reaction is 56.2 at 305 °C. A2(g) + B2(g) ⇒2 C(g) If a reaction is…

A:

Q: Question 6

A: The specific heat capacity for a given chemical substance or a solution refers to the amount of heat…

Q: The titration of a weak monoprotic acid by NaOH is shown here. The optimal buffering capacity of…

A: The titration curve given is,

Q: 2. The rate law for this clock reaction measured at a different temperature was found to be: rate =…

A: rate = 7.0 M-1.s-1 [A]1[B]2  [A] = 0.0050 M  t = 30 s  The rate is the time it took to completely…

Q: Enter your answer in the provided box. Muriatic acid, an industrial grade of concentrated HCI, is…

A: Formula to calculate molarity                          Molarity= mass of solute(g) ×1000molar mass…

Q: Question 8

A: Please find below the reaction

Q: 8. A solution of KBr is observed to freeze at -3.35°C. What would be the freezing temperature of an…

A: Colligative properties are the properties which depend on the number of atoms or molecules or ions…

Q: What would be the best starting material for the following chemical conversion? 1. CH3COCl in…

A: Introduction :-  O-nitroaniline is orange solid. It has melting point 72 °C…

Q: What is the net ionic equation of the following molecular equation? K2SO3 (aq) + 2HCI (aq) → SO2 (g)…

A: We have given the molecular equation as follow              K2SO3 (aq) + 2HCl(aq)  →  SO2 (g)  +…

Q: Indicate the major organic product from the reaction shown. NH NABH;CN

A: Given reaction is reductive amination reaction.

Q: A 7.60 L container holds a mixture of two gases at 41 °C. The partial pressures of gas A and gas B,…

A:

Q: Name the highlighted chemical group in each molecule. Lewis structure name of highlighted group…

A:

Q: Calculate the energy needed to raise the temperature of an 850.0-g block of aluminum from 22.8°C to…

A: Given that : The mass of the block of aluminum = 850.0 g Initial temperature = 22.8°C Final…

Q: How many bonding pairs and nonbonding pairs of electrons does each carbon atom contain? bonding…

A: To determine number of bonding and nonbonding pairs of electrons in (a) each carbon atom, and (b)…

Q: Question 8

A: The heat gained by the water is calculated as,

Q: Question 8

A: Any substance's mass available in unit volume is named as density. If substance mass (m) and its…

Q: 6. The pka of formic acid is 3.750. What is the Ka of formic acid?

A: The answer to Question No. 6 is given as -

Q: question 19 only

A: Calculate the number of moles of aluminum bromide. nAlBr3 = WAlBr3MAlBr3nAlBr3 = 4.80 g266.7…

Q: 8. Radioactive Iodine-131, with a half-life of eight days, is a common fission product and thus is…

A: The expression for the first order radioactive decay is shown below: Where; t = time A0 = initial…

Q: 8. Identify the polarity of an H-I bond and the polarity of an S-S bond.

A: Polarityin thenondis due to the difference in the electronegativity. If they have difference means…

Q: QUESTION 9 Complete and balance the following redox equation. When properly balanceas using the…

A: Option B is correct. Explaination:- The underlying principle involved in this method is that the…

Q: 8. To obtain pure lead, lead (II) sulfide is burned in an atmosphere of pure oxygen. The products of…

A: Here lead sulphide reacts with oxygen to give lead and sulphur trioxide.

Q: Question 8

A:

Q: An open flask sitting in a lab refrigerator looks empty, but it is actually filled with a mixture of…

A: * Volume of flask : V = 4.50 L The standard temperature and pressure is ; T = 273 K P = 1 atm By…

Q: 14. The reaction mechanism for the reaction 2 H2S(g) + 302(8) 2 2 SO2(8) + 2 H20(g) contains over…

A: Using the postulates of collision theory and arrhenius equation we can solve this problem.

Q: 0.10- Formic acid, HFor, has a Kvalue of 1.8 x 10-4. You need to prepare 150 mL of a buffer hav- ing…

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

Q: Question 8: Identify all of the functional groups that are present in the final product shown methyl…

A: Given reaction is :  Identify all the functional groups that are present in the final product  a).…

Q: 9.) (a) Calculate the pressure of gas, in atm, if 8.25 × 10² mol occupies a volume of 174.0 mL at…

A: 9. a) Given;

Q: Explain, in terms of ions, why sodium hydroxide, NaOH is considered an Arrhenius Base.

A: Question 6.  There are various concepts of acids and bases ;-  Arrhenius concept  Brønsted-Lowry…

Q: H H H 2 H-C-S + 2→ H-Ċ-s-S-ċ-H + 2HI H Methanethiol Dimethyl disulfide

A:

Q: In mass spectrometry, McLafferty Rearrangements are common in carbonyl compounds. Draw the daughter…

A: Mass spectrometry is a technique used to determine the mass of a given molecule. In the given…

Q: Find the percent ionization of a 0.35M phenol CGH5OH.The Ka of phenol = 1.3 x 10-10.

A: The extent depicting dissociation of any specified weak acid/base is recognized as "percent…

Q: Two other spectral series were mentioned in the introduction (Paschen and Lyman). Perform…

A:

Q: Provide the proper IUPAC or common name (but not both) for the following aromatic compound.

A:

Q: 8. If 100. J of heat energy are applied to a 25 g sample of mercury, by how many degrees will the…

A: Given is  Heat supplied (q) = 100 J Mass of sample (m) = 25 g Specific heat of mercury (c) = 0.14…

Q: Question 8

A: M1 = 2 M V1 =? M2 = 0.15 M V2 = 250 mL

Q: An unknown compound has the following chemical formula: Al,CI where x stands for a whole number.…

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.