How many grams is equivalent to 1.204 x 1024 molecules of NH3? How many moles are there in 584 g of NaCl? What is the mass in grams of 4.0 moles of NaOH?

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Q: Na2SO4  •  XH2O If I have 0.548 g of the hydrate after weighing and 0.272 g of H2O was lost after…

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Q: Common name?

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Q: A certain indicator, HA, has a K₂ value of 4.0 x 10-7. The protonated form of the indicator is blue…

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Q: Consider the following reaction: A 1.0 L flask initially contains 1.500 moles of N₂0. (g) and 1.000…

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Q: Consider an electrochemical cell, under standard state conditions, based on the reaction: 2 H(aq) +…

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Q: The structure below is called Jardiance, and is used to treat type Il diabetes. It is currently the…

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Q: A liter of 1/3 NS is to be prepared from 0.9% concentrated sodium chloride solution and sterile…

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Q: 1) The major product(s) in the reaction below is (are) OCH 3 OCH 3 I Br Br₂/AlBr3 OCH 3 II Br OCH 3…

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Q: At a given temperature, the system N₂(g) + O₂(g) ≥ 2NO (g) is at equilibrium with Kp = 4.15.The…

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Q: 2) If an unknown sample contains 39.04% sulfuric acid by mass, then a 1.000 g of that sample would…

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Q: Which isomer of 1-tert-butyl-3-ethyl-5-methylcyclohexane below is thermodynamically the most stable?…

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Q: 4. A) Why is high pressure pump needed in HPLC. B) Why is UPLC is with a higher efficiency than…

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Q: Part C Calculate the freezing point of a solution containing 5.6 % KCl by mass (in water). Express…

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Q: Write the full name of reaction as below: (Watch out for correct spelling) eg) FRCR --> Free radical…

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Q: 2. Write the following word equations as chemical equations. Be sure to include the states of matter…

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Q: Sodium acetate + Hydrochloric acid Molecular Equation Ionic Equation Net Ionic Equation

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Q: 19. An unknown triprotic acid requires 27.62 mL of 0.112 M Ba(OH)₂ to completely neutralize a…

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Q: orrect balanced formulas for the products in these synthesis reactions. 12MgCl₂ +0,2 MgO +2CIz 2) Na…

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Q: (1) Draw the skeletal structure of the following comp H H HO. H₂N и H HH H H H

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Q: 3. A piece of metal weighing 59.047 g was heated to 100.0 °C and then put it into 100.0 mL of water…

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Q: In the following reaction, the rate of formation of NH 3 is 0.15 mol/L min. What is the rate of…

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Q: Draw Lewis structures. Show all covalent bonds where applicable A) BrO31-^ B)H3O1+^ C)H3PO4

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Q: 1. Calculate AE for each of the following cases: a. q +51 kJ, w = - 15 kJ b. q=-65 kJ, w = - 20 kJ

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Q: [Co(H₂O)6]²+ (aq) + 4Cl¯(aq) → [CoCl4]²¯(aq) + 6H₂O(l)

A: Le Chatelier's Principle states that a reaction moves towards a less number of moles.

Q: Question Two (Knowledge/3) At a particular temperature, a 3.0 L flask contains 2.4 mol of chlorine,…

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Q: How is the value of the equilibrium constant affected by the concentration of the reactants used

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Q: A sample of NH4HS(s) is heated and decomposes according to the reaction     NH4HS(s) ⇄ NH3(g) +…

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Q: A volume of 500.0 mL of 0.130 M NaOH is added to 585 mL of 0.250 M weak acid (K₁ = 6.46 x 10-5).…

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Q: Using both the van der Waals equation and ideal gas law, calculate the pressure exerted by 31.00 mol…

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Q: Give me a clear handwritten answer with explanation...From cyclopropane, prepare 2,3-dimethylbutane

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Q: If you dilute 35.0 mL of 2.25 M hydrochloric acid to 550. mL, what is the molar concentration of the…

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Q: Consider the molecule, SOCl2 How many lone pairs are there in the central atom?  (numerical answer…

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Q: II. Your calcium carbonate antacid tablet weighed 1.50 g. You added 25.00 mL of a 1.00 M solution of…

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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.