Question 7 A 25.0mL expandable container of nitrogen was placed in a pressurized furnace at 4.0atm. The temperature rose from 25°C to 40°C. Assuming constant pressure, what is the volume (mL) of the gas after heating?

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Q: The SI unit for volume is the

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Q: his tial might in destroyed, but we can estimate that its volume was 31,150 L (1100 ft³), given the…

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Q: 11 [Ca], equilibrium (mol/L) 12 Molar solubility of Ca(OH), (mol/L) Average molar solubility of…

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Q: IV. Place the following molecules (or ions) in order of increasing CO bond length: CO, CO₂, CO3-²

A: Bond length is defined as the average distance between nuclei of two bonded atoms in a molecule.…

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Q: Determine the pH of each of the following solutions. Give your answers to two decimal places of…

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Q: What term is used for each quantity? (For example, 0.001 g=one milligram) A. 0.000 001g B.…

A: Answer:-   Given  A. 0.000001 g  B. 1000000000 m  C. 0.000000001 s  D. 0.01 g  What term is used for…

Q: Part A: A 252-mL buffer solution is 0.420 M in ammonia (NH3) and 0.303 M in ammonium chloride…

A: We would use Henderson Hasselbalch equation to calculate  initial pH.  Then , HBr which is a strong…

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Q: Consider the reaction HCI(g) + NH3(g)- NH4Cl(s) Using the standard thermodynamic data in the tables…

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Q: Write the equilibrium expressions for the following reactions: 2 N2O(g)  +  O2(g)  ??  4 NO(g)…

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Q: How many grams of solute are present in 715 mL of 0.230 M KBr? mass of solute: g

A: Molarity is defined as number of mole of solute divide by volume of solution in liter.    Mole is…

Q: What formula would you predict for a binary ionic compound of potassium and fluorine?

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Q: Provide the abbreviation of the following nucleotide. O-P-O- N Koy H OH H OH NH NH₂

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Q: Calculate the standard potential (in V) of the following chemical reaction: 2Cu* (ac) → Cu²+ (ac) +…

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Q: 5. Consider the following reaction: 2Fe(NO3)3(aq) + 3CuCl₂(aq) →2FeCl3(s) + 3Cu(NO3)2 (aq) The…

A: Given :  Concentration of Fe(NO3)3 at t = 19.4 s is 0.53 mol/L  Concentration of Fe(NO3)3 at t =…

Q: Homework: (a) Calculate the molar conc. of 1.0 ppm solutions each of Li* and Pb+2.(b) What weight of…

A: Given:-  solution of pb+2  and Li+   = 1.0 ppm Volume of water = 1 liter

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Q: reaction. Draw the starting material and intermediate compound formed in the following 1.) BH3 2.)…

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Q: ▾ Part A Ni²+ (aq) + Mn(s)-Ni(s) +Mn³ (aq) Mn (aq) Mn(s)[Ni(s)[Ni+ (aq) Mn(s) Mn (aq)||NP+ (aq)…

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Q: Which of the resonance structures below is more significant? H H O A NH structure A structure B both…

A: Resonance is an electron movement phenomenon.  Here we are required to find the resonating structure…

Q: Draw the major product of this reaction. Include stereochemistry if applicable. Ignore byproducts.…

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Q: 3. Provide the product(s) or reagent(s) as appropriate. ? 1. H₂O, H₂SO4 2. H₂CrO4 1. NaOH 2. H₂CRO4…

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Q: For each of the following sets of quantum numbers, determine how many electrons in a single atom…

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Q: The reaction of aluminum with hydrochloric acid produces hydrogen gas: 2Al(s) + 6HCl(aq) → 3H₂(g) +…

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Q: Determine the pH of a solution with [OH-] = 1.43 × 10-6 M.  Your answer should contain 3 decimal…

A: We will first calculate the pOH. pOH=-log[OH-] And we will convert pOH to pH pH+pOH=14pH=14-pOH

Q: Draw Nh4+ Lewis structure

A: The lewis structure for the Above molecule is given below:

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Q: A sample of argon gas at a pressure of 863 mmHg and a temperature of 88° C, occupies a volume of…

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Q: A typical chest X ray exposes a patient to an effective dose of 0.05 mSv. A) How many rem is this?…

A: The part A is to convert the given quantity into rem.  Part B is to count number of chest X rays.

Q: A. What is the density of an unknown liquid if 15.00 mL of the unknown has a mass of 12.257 g? B.…

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Q: How many sigma (o) and pi (л) bonds are in the following molecule? H H .H H methyl anthranilate H H…

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Q: 1.Give the structure of the nucleophile that could react with 1-iodobutane to form the following…

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Q: Ques If 450 g of magnesium hydroxide is dissolved in water to make 6.5 L of solution, what is the…

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Q: What is the pH of a solution with [H 30 1 = 1 × 10-9 M? 1.0 × 10-5 M 5.0 -9.0 -5.0 9.0

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Q: Part B Enter the identity of the missing nucleus showing mass balance for the following nuclear…

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Q: The pH of an aqueous solution of 0.0566 M potassium cyanide, KCN, is . (Assume that Ka (HCN) = 4.00…

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Q: 1. If there are 4.00 moles of a gas at a pressure of 5.60 atm and a volume of 12.0 liters, what is…

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Q: O OH HO H* I

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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.