What is the pressure of a mixture of 0.0500 g of H2, 1.00 g of N2, and 1.60 g of Ar in a container with a volume of 4.00 L at 20 °C?

Q: 2. The onset of the glass transition temperature Tg of the following polymers was measured: •…

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Q: Complete the table below by deciding whether a precipitate forms when aqueous solutions A and B are…

A: Here we are required to find the formula of the precipitate formed.

Q: A gaseous mixture was enclosed in a piston and cylinder system having a volume of 8.545 L. When a…

A: The Answer to the following question is-

Q: explain cross linked polymers in detail

A: Cross linked polymers- cross links are types of bond between polymer chain that is ionic or covalent…

Q: 11) Which one of the following best describes the polymer chain shown below? CH3 CH3 CH3 CH3 CH3 CH3…

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Q: 3) How can you prepare each of the following compounds?: (Start from 2-aminoaniline) -Ph Ph CH₂…

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Q: Balance the following chemical equation (if necessary): Cl(aq) + Pb2+ (aq) = PbCl₂ (s)

A: A chemical equation is said to be balanced if atoms of different elements are same in number on…

Q: What relationship exists between the following two structures? a. identical molecules c.…

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Q: Q3: XeF40 belong to the point group C4v, Determine: a. DOF. b. # of vibrations. + c. vibrational…

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Q: What is the ¹H NMR splitting pattern of the indicated hydrogen? H O triplet O quintet O quartet

A: Here we are required to find the splitting pattern of hydrogen indicated

Q: FW m Transmittance % Solvent: CDC13 4830 4000 2.10 1000 3000 CsH₂O2 2008 1983 2000 Wavenumber 1500…

A: Given Molecular formula C5H6O2 IR and NMR spectra

Q: ENZYME KINETICS (NO NEED TO GRAPH!) [S] mM v (no I) 12482 The estimated value of Km a. 1 b. 2 c. 4…

A: We are given the substrate concentration, [S](mM) and rate of reaction in the absence of inhibitor,…

Q: How many joules of heat are needed to raise the temperature of 10.0 g of aluminum from 22 c to 55 c…

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Q: Consider the decomposition of liquid water, H₂O(1): (a) What is the enthalpy change for the reverse…

A: Given reaction of the decomposition of liquid water is  H2O (l) <=======> H2(g) + 1/2 O2(g)…

Q: Which of the following combinations is likely to be ionic? O silver chloride O potassium chloride O…

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Q: The value of AU for a system that performs 6.60 x 104J of work on its surroundings and gains 32.0 kJ…

A: Given, Work done on surroundings , ∆W=6.60×104J Heat gained , Q= 32.0 kJ

Q: A 10.00-ml aliquot of an HCl solution of known concentration (3.800 g/L) was titrated against a…

A: HCl is a strong monoprotic acid.  NaOH is a strong monoacidic base.  The balanced neutralization…

Q: 6. C5H10O2 CsHa(s)+2 -CSH12 CSHO 212=1d.v. 3.5 3.0 2.5 L 2.0 1.5 1.0 ppm

A: Molecular formula C5H10O2  Degrees of unsaturation = 1

Q: Select all molecules with a "singlet" ¹H NMR splitting pattern for the indicated hydrogen. U A □ O B…

A: The splitting pattern in 1H NMR can be obtained by the formula "n+1" where n is the number of…

Q: If 756 c a l of heat were added to 64.8 g of Al at 32.5° c what is the final temperature of the…

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Q: Fill in the missing chemical formulae in the tables below. acid NH H₂SO4 H₂O conjugate base 0 base…

A: Conjugate acid and base have difference of one proton(H+).  When an acid donates a proton (H+) then…

Q: 3. a.Draw the complete arrow mechanism of the following reaction, indicate what type of mechanism it…

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Q: A.What is the condensed structural formula of: 1. Methanol 2. Benzoic Acid 3. Methyl Benzoate 4. 1-…

A: Condensed structure involve every carbon atoms presented individually. This structure use…

Q: 41. The percent of acyclovir and quantity of lidocaine in the 5% cream RAcyclovir (ZOVIRAX)…

A: Given, Acyclovir = 5% cream

Q: If 50.0 g H2O at 13.6 °C is combined with 244 g H2O at 93.7 °C, what is the final temperature of the…

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Q: A glass vessel contains 40 g of argon gas. Assuming ideal behavior, which of the processes listed…

A: Given:  Mass of Argon gas= 40g

Q: Match the name with the formula. You will need to determine FIRST if the name/formula is IONIC of…

A: Ionic compound : These are the compounds formed by combination of ions(charged particles )when the…

Q: A sample of 2.40 g of potato chips was burned in a calorimeter. The calorimeter was calibrated to…

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Q: Is silicon tetrafluoride dispersion force, hydrogen bonding, or the pole interaction

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Q: An ion has 21 neutrons, 12 electrons, and a -3 charge.  What is its atomic number?

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Q: The mass of the Earth's troposphere, the lower part of the atmosphere, is approximately 4.4*1018 kg.…

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Q: Problem 3. (Electroplating) steel part with surface area A = 130 cm² is to be tin-plated. What…

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Q: How many signals would be present in the ¹HNMR? HO NH 2 HO 0 11 0 8 07

A: The number of 1HNMR signal can be identified based on the molecule.

Q: A solution contains 8.14x10-2 M ammonium bromide and 0.460 M ammonia. The pH of this solution is

A: Basic Buffer solution :- An equi molar mixture of a weak base and its salt with strong acid is known…

Q: 4. (a) Explain why the reaction of SF4 with BF3 yields [SF3], whereas the reaction with CsF gives…

A: The Answer to the following question is-

Q: A 1.0-liter solution contains 0.25 M HF and 0.41 M NaF (Ką for HF is 7.2 x 10-4). What is the pH of…

A: Ka =  7.2 x 10 —4 [HF] = 0.25 M [NaF] = 0.41 M

Q: What are the molecular and empirical chemical formulas of a compound made up of these molecules? :0:…

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Q: a) A mixture of hydrocarbons contains 33.9% hexane (C6H14) 11.3% octane (C8H18) and 54.8% heptane…

A: we have to calculate  a) mass of CO2  b) masses of P4O6 and P4O10

Q: Use the dropdown menus to indicate whether a solvent pair could be used successfully in a…

A: Ideal properties of mixed solvents in recrystallization: 1) The compound should be readily soluble…

Q: Write electron configurations for the following ions, and determine which have noble-gas…

A: Here we are required to state the electronic configuration of the following ions.

Q: How many g of helium must be added to a balloon containing 8.00 g helium gas to double its volume?…

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Q: Calculate the theoretical yield with masses for CaCl2 and Na2CO3. The solid measured value is 2.5092…

A: The balanced equation for the reaction between CaCl2(aq)  and Na2CO3(aq) is: CaCl2(aq) + Na2CO3(aq)…

Q: What is the The enthalpy change for the reaction: calcite › aragonite

A: The chemical reaction for which the standard enthalpy to be found is: CaCO3(s, calcite) → CaCO3(s,…

Q: An increase in the temperature of a solution usually     increases the solubility of a gas in the…

A: Note- Here we have to predict  the effect of increase of temperature of a solution in

Q: Data was collected on the osmotic pressure of a series of solutions of an enzyme in water at 298K…

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Q: НО. S 5 О R ОН

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Q: Starting from (R)-3-methylhex-1-yne as the substrate at the center of your page, draw a reaction map…

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Q: Consider the following balanced reaction: 2VO4³- (aq) + SO₂ (g) + 8H+ (aq) --> 2VO₂ (aq) + SO42 (aq)…

A: To solve this problem we have to match the given reaction .

Q: Compare and contrast acid-base and electrostatic catalysis as both seem to implicate charge. Use an…

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Q: Olfactory receptors in our noses, used for the detection of odors, are chiral. Therefore, in some…

A: The chiral centre and R ,S nomenclature of the compounds are shown below,

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.