helium balloon has a volume of 55.0 liters at 37.2 C and 648 mm Hg of pressure. To what volume will the balloon expand if it rises to an altitude where the pressure is 0.764 atm and the temperature is -14.5 C?

Q: 3. A gas occupies a volume of 14.0 L at 455 mm Hg pressure 25 °C. What will be its new volume if the…

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Q: Glucose can be coverted into a hemiacetal ring structure. Which test would prove this? Molish test…

A: Sugar with the presence of hemiacetal act as a reducing agent...

Q: Use the pH interactive to classify each item to the proper solution. 0.1 M HCI pH = 1 pH = 13 strong…

A: The solutions given are 0.1 M HCl, 0.1 M HC2H3O2, 0.1 M NaOH, 0.1 M NH3.

Q: Draw the major product of this aminolysis reaction. Ignore inorganic byproducts.

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Q: 3. Determine the missing products or reagents for the reactions shown below. Show stereochemistry…

A: These are addition reaction where reagents gets added to triple bond to give the desired product.

Q: A mixture of methane and nitrogen gases is maintained in a 5.15 L flask at a pressure of 2.66 atm…

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

Q: . What is the pH at the half-equivalence point of a 0.100 M solution of HC2H302? Ka of НС2H302 = 1.8…

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Q: (b) 1) LDA 2) 0 H-C-H 3) H30* н-с

A: LDA is a strong base, it is quite bulky in nature. so it would like to abstract proton from the less…

Q: 4. A sample of a gas is in a 17.3 L container that is at a pressure of 0.33 atm and 34.3 °C. What is…

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Q: A 200. mL solution that is 6.7 x 10 M in Cu²+ is mixed with 0.30 mole NH3. There is no change in…

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Q: Which arrow-pushing patterns are employed in the following mechanism? H3C-Br O Proton transfer;…

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Q: A copper ball weighing 2.300 g is dropped into a beaker containing 20.00 mL of H2O at 20.00 °C.…

A: When the hot metal is dunked into the water, the heat is released by the metal and equal heat is…

Q: Draw the starting alkyne that would lead to this major product under these conditions.

A: Alkyne reacts with HBr to give vinylic bromide. The reaction is proceeded by the electrophilic…

Q: Which of the following ions has the smallest size? (a) Cl- (b) F- (c) Al3+ (d) Na+

A: Since,As we move from left to right in a period then size decreases .But when we move from top to…

Q: An unknown sample of Mn2+ gave an absorbance of 0.392 in an atomic absorption analysis.  Then 2.00…

A: l

Q: 4. How would you carry out the following transformation Indicate the appropriate reagents in each…

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Q: Select the reagents for the following transformation. Please enter your answer as a string of…

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Q: 21.293 mL of 0.214 M weak base B is titrated with 0.276 M HCI. Calculate the pH at the equivalence…

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Q: Identify the conjugate acid for each base. conjugate acid of HS: Incorrect conjugate acid of S²- :…

A: Since,Conjugate acid is obtain by adding hydrogen ion.Conjugate base is obtain by removal of…

Q: Calculate, and plot, the fraction of NO(g) molecules in each rotational state from l = =

A: To Calculate and plot, the fraction of NO(g) molecules in each rotational state from l=0-30 at 300 K…

Q: ynthesis / Retrosy 7) Using the carbon containing starting material(s) provided, propose a synthetic…

A: Starting material for the reaction is ethene.  Different steps are included to derive the desired…

Q: At 25 °C and 765.6 torr, a sample that is a gaseous compound containing carbon, hydrogen, and oxygen…

A: Given: Temperature = 25 oC = 25+273 = 298 K Pressure = 765.6 torr = 1.007 atm Volume = 0.582 L

Q: Explain the octet rule. Use evidence from the text.

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Q: rse Propose an efficient synthetic round for the following transformation. Use only the reactions…

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Q: 15. FILL IN THE BOXES. Predict the major carbon containing product/s of 3-methyl-1-butene with each…

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Q: Por each compound circle each atom that could hydrogen bond with Water. You will need to REDRAW the…

A: There are various types of intermolecular hydrogen bonding exist between molecules. Hydrogen…

Q: Now that we have a reference for many of the common polyatomic ions, let's look at how to write the…

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Q: 10. Place the following in order of increasing strength as an acid. 1. 2. 0= 11. What is the IUPAC…

A: Acidity order of given compounds can be given as:

Q: Determine the equilibrium constant for a reaction at 260.0 K if AG° =14.30 kJ/mol. (R = 8.314 J/mol…

A: Given that, The standard Gibbs free energy change of an equilibrium reaction is ∆G0 = 14.30 kJ/mol =…

Q: 4. Predict the major organic product(s) for the following reactions. (2 equiv) H H NaOH A 1. NaOH 2.…

A: a) Pentanal in presence of Sodium Hydroxide undergoes an aldol reaction through the abstraction of…

Q: An analytical chemist weighs out 0.318 g of an unknown triprotic acid into a 250 mL volumetric flask…

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Q: A buffer solution contains 0.100 M fluoride ions and 0.126 M hydrogen fluoride. What is the…

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Q: QUESTION 6 For a principal quantum number n, how many electrons are possible n 2n+1 2n². n²

A: To solve this problem we have to know about Principal quantum number.

Q: H 1s H₂ o* 1s 01s antibonding node bonding MO H 1s energy

A:

Q: Using the data in the tables and Coulomb's law, calculate the energy change for this reaction (per…

A: The lattice energy between calcium and sulfide ions can be calculated using the Coulomb's law which…

Q: A 25.0-mL 0.500-M KNO3 solution is mixed with a 30.0-mL 0.400-M Fe(NO3)3 solution. What is the molar…

A: The concentration of the solution formed by mixing two or more solutions containing the same solute…

Q: Gaseous butane (CH₂(CH₂)₂CH3) will react with gaseous oxygen (O₂) to produce gaseous carbon dioxide…

A: Given :  Mass of butane = 4.6 gm  Mass of oxygen gas = 21.6 gm

Q: Write the Keq for: 2 K3PO4(aq) + 3 Ca(NO3)2(aq) 6 KNO3(aq) + Ca3(PO4)2(s)

A: Keq is the ratio of the equilibrium concentrations of product over equilibrium concentrations of…

Q: Draw the major product for this reaction. Ignore inorganic byproducts. HgSO4, H₂O

A: Given starting compound is non terminal alkyne.  Here in this reaction non terminal alkyne react…

Q: Theaffect. The Grignard Teagent employed whead to the product A H The transformation above can be…

A:

Q: Write the IUPAC name for L-asparagine, one of the naturally occurring amino acids, which is shown…

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Q: A. B. I Br2, CCl4 Br₂, H₂O Br2, CCl4 Br₂, H₂O

A: These are addition reaction to alkene where alkene adds to Br to form cyclic bromonium ion where the…

Q: After plotting the cell potential (Ecell) measured at 298 K on the y-axis versus the natural…

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Q: determine Ecell (in volts) for the reaction shown below under the given conditions:…

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Q: 4.2 3.8 3.4 2.6 f1 (ppm) 2.2 1.8 1.4 1.0 0.6 0.2 -0 2.00-1 0.98- 2.02-1 3.951 2.941 3.59 -3.57 3.56…

A: In the 1-H NMR spectra, the number of peaks will be the same as the number of different protons…

Q: Calculate [H3O+] for a solution of pH 4.3.

A: Given pH = 4.3  The hydronium ion concentration is calculated by using :  pH = -log[H3O+]  [H3O+] =…

Q: Nitric acid is neutralized with potassium hydroxide in the next reaction. HNO3(aq) + KOH(aq) →…

A: We will first determine the mass of solution by adding the volume and multiplying density. And we…

Q: The energy E of the electron in a hydrogen atom can be calculated from the Bohr formula: R₁ E=- In…

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Q: 8. Using the provided chart, predict the proton ¹H NMR spectrum of acetaminophen Assignment a b C d…

A: The expected ppm of the proton depends on the shielding and deshielding nature of proton.…

Q: H-C=C-H 1) NaNH, 2) Mel 3) R₂BH 4) H₂O₂, NaOH ?

A:

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.