How many zinc (Zn) atoms are contained in 5.16 moles of Zn? Is this the correct answer including the correct labels?

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Q: 2. Consider the following reactions in open systems: I. II. III. IV. 2H2(g) + O2(g) → 2H₂O(g)…

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Q: Part C Hydroxyapatite, Ca₂0 (PO4) 6 (OH)2, the principal component of human bones. Express your…

A: Atomic mass is the mass of  all the atoms         present in molecules .its unit is amu .

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A: According to the molecular orbital theory the atomic orbitals combine to form molecular orbitals.…

Q: Convert the following metric values to the unit specified.  Do not include units in your answers.…

A: Given, a) 0.00256 L =  ______ mL b) 5.631 kg =  _______  g c) 3.45e6 nm =  _______  km Note: 1L =…

Q: The pH of the buffer solution is 4.0 while the pKa of the weak acid is 3.0. Compute for the molar…

A: Given the pH of the buffer solution is 4.0 while the pKa of the weak acid is 3.0. We have to…

Q: Determine the density of an object that has a mass of 138 g and displaces 12.1 mL of water when…

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Q: Which pathogens/diseases activate humoral immunity? Describe the mechanism of this activation.

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A: The  process of delocalisation of pie electrons from high density to lower density is known as…

Q: +++ Complete the Chart-fill in the name or draw the structure of the functional group 1.Ether 2.…

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Q: H₂N CH₂ O-CH3

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Q: What is scientific notation of 0.65784125?   Explain thanks

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Q: what are the IUPAC names of the alcohols that could be used to produce this compund?

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Q: Give the IUPAC name for the following compound. Be sure to use cis/trans, E/Z or R/S where…

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Q: The following arrows are incorrectly drawn and I drawn them correctly please check if it's right and…

A: In this question, we will give explanation with correct resonances for each wrong resonance…

Q: 4. Titanium reacts with iodine to form titanium(III) iodide: 2 Ti(s) + 3 12(g) -->2 Til(s) AH = -839…

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Q: What is the mass, in grams, of 28.74 mLmL of acetone? Express your answer using four significant…

A: Here, we have to find the mass of acetone (in grams) of 28.74 mL of acetone.

Q: Please send me the question in 20 minutes it's very urgent plz

A: The apparatus used in chemistry for several purposes.are given in the question.

Q: Part IV. Draw the major organic product(s) for each reaction below. Indicate the stereochemistry…

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Q: Name the 3 parts of a DNA nucleotide?

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Q: IV. Complete the table by computing for the missing pH, pOH, [H+], and [OH-] 1. 2. 3. 4. 5. [H+]…

A: A question based on equilibrium concept that is to be accomplished.

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A: According to the question we have, The pressure = 1.0×10-10 torr The temperature is given by = 307 K…

Q: A buffer was prepared from a concentrated propanoic acid (10.0 M) solution in two steps. First, 10.0…

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A: Here given:- =>Volume of water=1.89×104 litres=18900 litre     Volume of water=18900000 ml…

Q: 3. Explain the difference between extensive from intensive property? Cite an example for each. 4.…

A: Thermodynamics is branch of chemistry in which we deal with amount of heat evolved or absorbed by…

Q: A solution consists of 60.3 g of potassium bromide, KBr, and 120.7 g water. (a) Calculate the weight…

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Q: a ?

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Q: Ethyl phenylacetate - Honey   Write the complete reaction Analyse the mechanism of reaction ( How…

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Q: molality of a solution formed by a

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Q: Using the periodic table, write the electron configuration and orbital diagram of each of the…

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Q: Match each weak acid with the pH value at which it would buffer. You are currently in a sorting…

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Q: The geometry of trimethyl amine N(CH3)3 is pyramidal with bond angle of 108.7 degrees whereas the Si…

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Q: (c) Write a brief account on the difference between nematic and smectic phases.

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Q: If 100 grams of CH4 is made to react with 200 grams of O2, what mass of CO2 (in grams) is formed?

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Q: atoms or ions 2- Se, Se, Br F, C1, CI S, AI, P atoms or ions in order of decreasing size 0.0.0 0.0.0…

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Q: MISSED THIS? Watch IWE 2.14; Read Section 2.9. You can click on the Review link to access the…

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Q: 20 Analyze each reaction: 10. C₂H4O2 + H₂ → C₂H4O + H₂O A. Which compounds are the reactants? B.…

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Q: Which of the elements goes completely into substitution solution with Ni?

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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.