CALCULATE:  1. The numbwr of moles of 0.020 kg H20 2. The number of moles of 8.30 x 10²⁰ molecules H20  3. The number of molecules l 2.5 liters od water

Q: Passing nitrogen monoxide and oxygen gases into an aqueous solution of sodium carbonate yield sodium...

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Q: Some measurements of the initial rate of a certain reaction are given in the table below. N2|| H2 in...

A: As we can see experiment 3 and 1: Concentration of [N2] becomes 2.63 times and concentration of [H2]...

Q: At 298 K, the Henry's law constant for oxygen is 0.00130 M/atm. Air is 21.0% oxygen. At 298 K, what ...

A: Henry's Constant , KH = 0 .00130M/atm

Q: Which chemical is a good neutralizing agent for an acid spill? A) Ba(ОН)2 B) Na,SO4 С) NaOH D) NaHCO...

A: For neutralizing acid spill we generally use weak base.. Acid spill is hydrochloric acid or sulfuric...

Q: what steps would you take to compare 2 kilograms and 3200 grams

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Q: At a certain temperature this reaction follows second-order kinetics with a rate constant of 175.M's...

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Q: Which is the least polar? O 1-methylbutane O 1,4-butanediol O 1-butanol O 2-pentanol

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Q: A solution is made by dissolving 22.5 mL of oil in enough gasoline to give 60.5 mL of solution. What...

A: Volume of solute (oil) = 22.5 ml Volume of Solution (gasoline + oil) = 60.5 ml To find %(V/V) of oil...

Q: Part A Consider the reaction: SO2 Cl2 (g) = SO2 (g) + Cl2 (g) A reaction mixture is made containing ...

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Q: When the following equation is balanced properly under basic conditions, what are the coefficients o...

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Q: A scientist wishes to measure the concentration of methyl benzoate in a plant stream by gas chromato...

A: The given type of aanylysis called the Single Point Internal Standard method. Internal response fact...

Q: How do structures of these IUPAC names look like? d) 4-Mercapto-3-methylthiopentene

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

Q: This is a pushing question. One frequency for ultraviolet blacklights used in nightclubs is 8.11 x 1...

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Q: Unknown compound D has a melting point of 102-103 degrees C. Carbon/ Hydrogen analysis of compound D...

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Q: Under certain conditions the rate of this reaction is zero order in ammonia with a rate constant of ...

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Q: 3. Calculate the molarity, molality and mole fraction of water in each of these solutions Solute Den...

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Q: ach alcohol below to its proper category (primary, secondary or tertia CH3 OH

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Q: 4. 500 mL of 0.75 N of K2Cr207 from a pure solid reagent if it follows the following half reaction -...

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Q: Draw the Lewis diagram and a resulting structural diagram to represent each of the following: One c...

A: Since you asked multiple questions so as per Q&A guidelines of portal I solved first question,be...

Q: Solid aluminum and oxygen gas combine in a synthesis reaction. 4.80mol of powdered aluminum is place...

A: Given, Moles of aluminium (Al) = 4.80 mol Moles of Oxygen gas (O2) = 3.00 mol Mass (in grams) of Alu...

Q: • Which of the following radicals is expected to be the least selective? 1. HO• 2. F. 3. Cl• 4. Br• ...

A: Answer 2 :-  Radical chain chlorination of 2,3-dimethyl pentane :  2,3-dimethylpentane 1 Alkane) rre...

Q: 3) Show the product(s) & intermediates for the following reactions.

A: In the above reactions the possible products and intermediate are given below.

Q: This is the laboratory apparatus used for liquid-liquid extraction. Florence flask Volumetric flask ...

A: For liquid liquid extraction is extraction of a particular compund from a solution with the help of ...

Q: 1.08 g H2 is allowed to react with 9.83 g N2, producing 1.36 g NH3. Part A What is the theoretical y...

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Q: Determine the magnitude and direction of the electric field at a point 0.5 m to the left of a point ...

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Q: Atomic number

A:  The atomic number is generally use to uniquely identifies a chemical element.

Q: Q1.Fill in positive, negative and neutral The isoelectric point, pl, of two amino acids is shown bel...

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Q: One way the U.S. Environmental Protection Agency (EPA) tests for chloride contaminants in water is b...

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Q: When you put salts in the fire during a flame test, the flame turns a different color. Is this a phy...

A: When we puts salt in fire during flame test the flame turns to a different color.

Q: (4) Determine the point group of CHa and show the symmetry elements/operations using 3D drawing. (5)...

A: In point group classification we have to find out different axis of rotation,plane of rotation ,if a...

Q: Which of the following reactions is correctly balanced? A) CO + O2 → CO2 B) N2 + H → 2NH3 C) 2H2O...

A: Given :-  A) CO + O2 → CO2 B) N2 + H → 2NH3 C) 2H2O + C → CO + 2H2 D) Zn + 2HCl → H2 + ZnCl2  To ide...

Q: What is the mole fraction, X, of solute and the molality, m (or b), for an aqueous solution that is ...

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Q: e molality of lelit.

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Q: moles

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

Q: dentify each compound as Empirical or Molecular. Write your answer on the space  provided.

A: 6) Methyl acetate (C3H6O2) The given compound is molecular formula.       7) Ammonia (NH3) The given...

Q: Solid zinc metal reacts with ssulfuric acid to form hydrogen gas and an aqueous solution of zinc (II...

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Q: W.H.2;How much Cl ions are contained in 5 L solution 28 ppm? K

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Q: Predict the product of the oxidation of each compound below. If the compound is oxidized one time, w...

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Q: The molality of a KMNO4 solution is 0.933 at 25°C. What is the mole fraction of potassium permangana...

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Q: Give the balanced chemical equation (including phases) that describes the combustion of butene, C4 H...

A: a.  This question belong to hydrocarbon. When hydrocarbon burnt in excess of oxygen produce carbon d...

Q: If 25 amperes of current flow for 15 minutes through a solution of Sn(NO3)2, how many grams of tin m...

A: According to the first law of Faraday, the mass of a metal deposited on the anode during electrolysi...

Q: A o bond arises from the straight-on overlap of two atomic Sigma Bonding orbitals. The electron dens...

A: Hybridisation is defined as mixing of orbital having different energy so as to rehybridize to form n...

Q: Use the following information to answer the next question. A sample solution contains two unknown io...

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Q: Perform the following conversion to the correct number of significant figures using the Dimensional ...

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Q: Which compound below can be oxidized the greatest number of times? Oa primary alcohol Oa secondary a...

A: To find which of given compound can be oxidised the greatest number of times. 

Q: 2. The reaction H2 (g) + 2 NO (g) + H,O (g) is studied at a certain temperature N,0 (g) by determini...

A: Introduction :  Rate law can be defined as the representation of rate of reaction in terms of concen...

Q: What is the mass, in grams, of 1.20 mol of iron (III) sulfate? Express your answer using three signi...

A: Given,  Moles of Iron(III) sulfate = 1.20 mol  Molar mass of Iron(III) sulfate = 399.88 g/mol  

Q: When rain water interacts with atmospheric carbon dioxide, it produces what?

A: When rain water interacts with atmospheric carbon dioxide, it produces what?  Product is given below...

Q: Sodium reacts with oxygen to produce sodium oxide as follows: 4Na(s) + O2(g) → 2Na2O(g) If you hav...

A: Given :-  4Na(s) + O2(g) → 2Na2O(g) Mass of Na = 22.74 g  To calculate :-  Amount of O2 required (in...

Q: At a certain temperature this reaction follows second-order kinetics with a rate constant of 13.2M '...

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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.