Suppose 2.2 liters of gas at 37.5 degrees Celsius is under 7.51x10^7 pascals of pressure. How many moles of gas are there in the system?

Q: For the titration: 30.0mL of 0.150 M NH3 (Kb = 1.8 x 10-5) with 0.250 M HBr Calculate the pH after…

A: For the given titration we have to calculate the pH

Q: Which of the following are examples of a nonspontaneous process? a: Liquid water freezing at a…

A: Spontaneous process: All Spontaneous processes has tendency to occur naturally without external…

Q: Molarity calculations- A student adds 1.55g AlCl3 to 125.00 mL water. Then, the student adds 40.00mL…

A: In this question, We have to Calculate the [Cl-] in the final solution when a student adds 1.55g…

Q: Determine chemical shifts, multiplic the relative integration 11 10 9 8 00 (7.47 7.42 -7.33 7.25…

A: Proton NMR tells about the number of protons present in the molecule.

Q: Multiple Response Question Select the criteria for any compound to be considered aromatic. The…

A: We have to select the criteria for any compound to be considered aromatic from the given statements.

Q: Consider the process A(I) → A(g) 72°C 153°C, which is carried out at constant pressure. The total AS…

A: Given :

Q: 5.20 L of water was added to 1.10 L of 4M NaOH. Determine the pH of the solution. Answer Format: [2…

A:

Q: Draw the structures of compounds A to D: A (C6H12) Br2, B 1) Excess NaNH, 2) H₂O с NaNH, D +

A: The chemical structure of A, B, C, D has been solved.

Q: Nit For a certain process, at 313 K, AG = -22.5 kJ and AH = -7.00 kJ. the process is carried out…

A:

Q: Calculate the solubility at 25°C of BaCrO4 in pure water and in a 0.0050M BaCl2 solution. You'll…

A: Using the value of Ksp we can calculate the solubility of the partially soluble salt. In order to…

Q: Arrange the following ions in order of increasing ionic radius: chloride ion, potassium ion,…

A: For the ions given, we have to determine the correct order of ionic radius from smallest to largest

Q: A chemist titrates 220.0 mL of a 0.6204 M butanoic acid (HC₂H,CO₂) solution with 0.2746 M KOH…

A:

Q: Which atoms/ions fit the electron configuration? 1s22s22p63s23p64s23d4

A:

Q: Chemistry How many shielding (core) electrons does argon possess? (it is not 8)

A: Core electrons: Core electrons are the inner electrons of an atom and these electrons do not…

Q: The following reaction series is completed: (1) 1-butyne is reacted with LDA. (2) The organic…

A: Given is organic reaction. LDA is stands for lithium diisopropylamide. It is base and main function…

Q: 7 Ethanoic acid has a melting point of 17 °C, ethanamide has a melting point of 81 °C, and ethanal…

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Q: Identify how many degrees of unsaturation are present in each of the following molecules, based on…

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Q: Consider a 1.0-L container of neon gas at STP. Will the average kinetic energy, average velocity,…

A:

Q: The following information is given for diethyl ether at 1 atm: Tb = 34.60°C Tm-116.30°C Specific…

A:

Q: A calorimeter contained 69.0 g of water at 15.99°C. A 119-g sample of iron at 66.26°C was placed in…

A: Initial temperature of calorimeter will be same as that of water . Heat capacity= mass × specific…

Q: What is one of the products of the following reaction? 8 e N=NC1 ОН OCH3 ?

A:

Q: Unanswered You Answered Correct Answer You Answered Correct Answer Question 10 Predict the identity…

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Q: Determine the resulting pH when 250 mL of 0.35 M HCI is mixed to a 800 mL buffer that has a…

A:

Q: Given the standard enthalpy changes for the following two reactions: (1) 2Ni(s) + O₂(g) → 2NiO(s) AH…

A: 2Ni(s) + O2(g) →2NiO(s)   ∆ H1°=-479.4 kJNi(s) + Cl2(g) →NiCl2(s)    ∆ H2°=-305.3 kJStandard…

Q: Calculate the solubility at 25 °C of Zn(OH), in pure water and in a 0.0070M ZnSO4 solution. You'll…

A:

Q: Suppose 60.0 mL of 0.100 M Pb(NO3)2 is added to 30.0 mL of 0.150 M KI. How many grams of Pbl2 will…

A: The solution has been provided.

Q: An equilibrium constant of 900 indicates

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Q: What is the concentration of H* in a 2.03 M HCI solution? O 2.03 M O 1.0 x 10-14 M < 2.03 M O not…

A: Answer of this question :-  Concentration :- the amount of solute dissolve in solution.

Q: Globally, in 2010 and 2012, respectively, there were about 9.20 billion metric tons and 9.60 billion…

A:

Q: An experiment was conducted using the the instructions below, and the results in the table below…

A: A question based on absorption that is to be accomplished.

Q: Sample 15 ppm calcium 2 10 ppm calcium and 10ppm phosphate 3 5ppm Ca,10ppm phosphate and 1%…

A: Solution- The given data is the absorbance of calcium and their ingredients.

Q: manufactured in an equilibrium process in which phosphorus trichloride reacts with nitrogen dioxide…

A:

Q: For the process: Z₂(g) →2 Z(g), AH° = +478 kJ. What would be predicted for the sign of ASxn and the…

A: Given reaction: Z2(g) → 2Z(g),     ∆H∘ = +478 kJ We have to find the sign of ∆Srxn and the…

Q: In Experiment 4, we used titration to determine the total acid content of samples, which we reported…

A: Note: Answers to A, B, and C are required to solve #D and #E Hence I have answered all the five…

Q: A galvanic cell is constructed as follows. One half-cell consists of a platinum wire immersed in a…

A: Here we are required to find the cell voltage for the given galvanic cell .

Q: What is the structure/s of the major organic product/s for the reaction below? OH NaOH OH + major…

A: Given incomplete reaction is :  What is the major product/s for the reaction ?  Options are :…

Q: Draw the major addition product for this reaction. Do not include any byproducts formed.

A: Butadiene reacts with HBr to give 1,2 and 1,4 - addition products in which 1,2 - adduct is kinetic…

Q: If you could drop 12 atoms of copper into a beaker containing nitric acid, how many molecules of NO…

A: Copper, Cu(s) when added to dilute nitric acid, HNO3(aq) produces nitric oxide gas, NO(g).

Q: During the electrolysis of water in acidic solution, which process occurs at the anode? 4H* (aq) +…

A: Since, In electrolysis reaction, oxidation reaction takes place at anode. So,

Q: 450 g of solid acetic acid (MW=60 g/mol) is dissolved in 2.0 liters of water at room temperature to…

A: Buffers are the soution that resist small changes in pH of the solution. Acidic buffer is the…

Q: A microwave using 18.99cm IR radiation is used to heat 18.2g water from 18.8C to 71.2C. Find the…

A: Here we have to determine the number of moles of photons required to heat 18. 2 g of water from 18.…

Q: For nitrogen gas the values of C, and C at 25°C are 20.8 J K-¹ mol-¹ and 29.1 J K-¹ mol-¹,…

A:

Q: For a certain process, at 322 K, AG = −16.0 kJ and AH = -5.00 kJ. the process is carried out in such…

A:

Q: Consider the following reaction: CO(g) + NO2(g) → CO₂(g) + NO(g) If the rate law for this reaction…

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Q: Consider the molecular orbital model of cyclopentadienyl anion. In the ground state how many…

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Q: Consider the set of compounds shown below. OH OH XXO OH ORG MM = 110 g/mol OH GAN MM = 111 g/mol…

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Q: b. Z: A Z D 0 B :ZII 2

A: Rules for determining major contributor towards resonance :  A. Greater is the no. of covalent…

Q: Consider the following reaction: CO(g) + NO2(g) → CO₂(g) + NO(g) If the rate law for this reaction…

A:

Q: Calculate the solubility at 25 °C of PbCrO4 in pure water and in a 0.0080M Na₂ CrO4 solution. You'll…

A: #(1):  Calculation for solubility in pure water: Ksp of PbCrO4 = 2.8*10-13

Q: 11. PF3 - use a blue ball for phosphorus when constructing this model Total # of Valence Electrons:…

A: we have to till the given tables for the molecules  PF3 NOCl

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.