1) How many zinc (Zn) atoms are contained in 5.16 moles of Zn?

Q: ion 11 of 12 Consider the solubilities of a particular solute at two different temperatures.…

A: Given,  First we have to calculate the amount of solute at 20.0 °C. As, 100 g of water contains…

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

A: Methane reacts with oxygen to form carbon dioxide and water. The equation for the balanced chemical…

Q: 11. Hypothesize why plastic weigh boats, paper towels and plastic pipets continue to be found in the…

A: Laboratory produces tones of plastic waste every year.This because  many pipettes , petri dishes ,…

Q: 15. Rank the following compounds from most basic to least basic. Most basic (least stable)=1, leas…

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

Q: 10. A student reacted dilute nitric acid with lead (II) oxide to prepare lead(II) nitrate. The…

A: Common chemistry laboratory apparatuses : Equipments that are used in experiments are called…

Q: Silver bromide is used to coat ordinary black-and-white photographic film, while high-speed film…

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Q: 3. Below are two other organic dyes that both produce a yellow color when dissolved. Which of the…

A: individually, Radiant yellow will get dissolved in the polar protic solvent ethanol and Alizarine…

Q: What is the Gibbs Free Energy of the following reaction: CH4(g) +20₂(g) + CO₂(g) + 2H₂O(g) Substance…

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Q: Round 0.00971659 to three significant figures.

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Q: A sample of propane (C3H8) is placed in a closed vessel together with an amount of O₂ that is 2.00…

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Q: 6-6-2 D) ??? ??. 222 Xox OH do سامان

A: Kindly repost your remaining questions seperately.

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: your car gets 35 mi/gal, how many gallons of gasoline would you use if you drove 570.3 miles?  1…

A: Given -> Distance= 570.3 miles 1 mile = 5280 ft  Car gets -> 35 mi/gal

Q: Consider the reaction of hydrogen sulfide with methane, given below: 1 CH4(g) + 2 H2S(g) 1 CS2(g) +…

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Q: 1.1 Suggest the specific chemical and physical interactions responsible for the reversal of the…

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Q: QUESTION 15 How many atoms of sulfur are in 499 g of Na₂S₂O3 ? Atomic weights: Na=22.99, S-32.07,…

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Q: explain how the development of the Atomic Theory illustrates the Nature of Science. Support your…

A: It is asked to explain the development of atomic theory illustrating the nature of Science.

Q: 1. What is the molar mass of the following elements? a) B b) Zn c) He

A: Since, In case of atom, molar mass is nearly equal to two times that of its atomic number. Thus,

Q: True or false "Ions" are atoms that have either more or fewer electrons than protons (but not the…

A: Ion : It is atom or molecule which has a net electrical charge on it .

Q: 13. Draw the atoms, showing how they are connected in H₂ so that the 2 hydrogens each form 1 bond?…

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Q: Predict the major product for the reaction. H Cl₂, CH3CH₂OH

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Q: hydroxide to produce water sodium

A: The chemical equation needs to be  balanced so that it follows the law  of conservation of mass . A…

Q: Consider the following reaction: 4 HBr(g) + O2(g) 2 H2O(g) + 2 Br2(g) (a) The rate law for…

A: 4 HBr(g) + O2(g) =  2 H2O(g) + 2 Br2(g) Rate law: Rate law is the expression in which reaction rate…

Q: Draw the products of the complete hydrolysis of an acetal. Draw all products of the reaction. 애 H…

A: Carbonyl compound (aldehyde and ketone) reacts with alcohol to form hemiacetal in the presence of an…

Q: K[Cr(C2O4)2(H2O)] 2H2O what is the complex ion, the coordination number, the geometry? and would you…

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Q: Can you use IR spectroscopy to differentiate between an alcohol and a carboxylic acid?

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Q: what is significant figures of 6.5784125×10^ -1 ? what is significant figures of 6.5784125×10^ -2 ?…

A: Rules for significant figure All non zero integer are significant Exact number have unlimited…

Q: E) OH ??? ???

A:

Q: Compound 1 Compound 3 e Compound 2 Compound 4 What is the relationship between Compound 1 and…

A: Isomer - Compounds having same molecular formula but different structural formula known as isomer…

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

A: SUBSTITUTIONAL SOLID SOLUTION:-Solution in which atoms of solute substitute the atoms of solvent at…

Q: b) Would the conformational energy of the 1,3- and 1,4 - isomers of dimethylcyclohexanes be similar…

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Q: The manganese(II)-catalyzed redox reaction between cerium(IV) and thallium(I) is thought to proceed…

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Q: Which piece of equipment gives the lowest uncertainty   Question 15 options:   100 mL beaker   25…

A: There are different type of equipments which can be used to measure the volume of any liquid…

Q: Subatomic particle Neutron Proton Electron Charge Nitrogen Oxygen Fluorine Sodium Magnesium Mass…

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Q: Compound 1 Compound 3 Compound 2 Compound 4 What is the relationship between Compound 2 and Compound…

A: Isomers : These are the molecules which have same molecular formula but different arrangement of…

Q: 0.390 J/gºC = 4.184 J/gºC nswer to the correct num

A: Question 14    We know ,  The amount of heat released or absorbed by a substance is  given by the…

Q: 6. What items other than a pen are you required to bring to lab next week?

A: We have to write what items other than a pen are you required to bring to lab?

Q: 1. Perform the following conversions. (1 in = 2.54 cm; 1 ft = 12 in; 1 mi = 5 280 ft)  a) 58.8 ft to…

A: Unit conversion means conver one form of unit in to another. It is used in our day to day life.

Q: Carbon as it appears on the periodic table is shown below. Carbon 6 C с 12.011 Carbon has an atomic…

A: Carbon:- Carbon is p-block element and its atomic number is 6. •Carbon electronic…

Q: Cl H H H-C-C-C-H ||| HHH HCI H TIT and H-C-C-C-H | | | Η Η Η What is the relationship, if any,…

A: Isomers are those compounds which have the same molecular formula but they have different structural…

Q: Identify the estimated digit and the magnitude of uncertainty in each of the following measurements.…

A: Identify the estimated digit and the magnitude of uncertainty in each of the following measurements.…

Q: A 2.00 mol sample of carbon dioxide undergoes a two-step process. First, at a constant volume, the…

A: GIVEN Constant Volume molar heat capacity of Carbon dioxide gas (Cv ) = 28.46 J /mol . K Heat of…

Q: Provide a systemic name for the alkane shown in the picture.

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Q: What of these are correct conversions for kg to mg? Select all that apply. 1 mg = 10³ kg 1 mg = 1000…

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

A: Reactants are present on left hand side and products are present on right hand side of chemical…

Q: How many grams of BaCl2 needed to completely precipitate sulfate as BaSO4, knowing that 0.4758 g of…

A: Given,  Mass of BaSO4 = 0.4758 g  Volume of the solution in mL = 10.0 mL  Molar mass of BaSO4 = 233…

Q: Briefly explain why the 1-mL pipette has a lower percent tolerance level in the range 300-1000 than…

A: Each pipette have the specific tolerance limit. This means a rated error in the measurements. For…

Q: Ratio of specific heats of CO2 at 825K.

A: Ratio of specific heat means the ratio between Cp and Cv  That is Cp- specific heat at constant…

Q: The above solution was wrong when entered into homework site

A: Given reaction is :  (a). 1 CH4(g) + 2 H2S(g) ---------->1 CS2(g) + 4 H2(g) Rate of decrease in…

Q: Extraction of DNA involves the use of a 1 M phosphate buffer (1-liter volume) having the hydrogen…

A: Given: Hydrogen ion concentration of buffer =  6.165950019 x 10-9 M Molarity of buffer used = 1 M…

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.