What number of molecules (or formula units) are present in 2.38 g of each of the following compounds? H. a. molecules H b. molecules c. (NH4), Cr,O, formula units Try Another Version 1 item attempt remaining Submit Answer

Q: Question 3 What is the reaction order for the decomposition of p-toluenesulfinic acid? 3 CH3C6H4SO2H...

A: Given reaction is :  Options are : Also, 

Q: Question 5 In the electrolysis of an acid solution, oxygen can be produced by the following half-rea...

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Q: Question 1 This following is the reaction for the synthesis of ammonia: N2 + 3 H2 + 2 NH3 At a certa...

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Q: • The molar absorption coefficient e at 590 nm for In is 2.85 x 10 M cm • The length of the cuvette ...

A: “Since you have posted a question with multiple sub-parts, we will solve the first three subparts fo...

Q: A 600.0 mg sample consisting of only CaC2O4and Mg C2O4is heated at 500oC converting the two salts to...

A: Answer: This question is based on the stoichiometric calculation where ratio of the mass of a reacta...

Q: What volume of a 0.150 N KI solution is required to react in basic solution with 34.1 mL of a 0.216 ...

A: Given,  Normality of KI = 0.150 N  Normality of KMnO4 = 0.216 N  Volume of KMnO4 = 34.1 mL  Volume o...

Q: 5. If 123.00 grams of C10H160 are dissolved in 355.00 grams of C&H6, what is the freezing point of t...

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Q: Multiple Choice 1. Salt or sodium chloride solution is prepared using distilled water (assume densi...

A: As per our guidelines, we are supposed to answer only one question. Kindly repost other question as ...

Q: A solution with a mole fraction of 0.12 is composed of 0.2 mole of solute. How many moles of solvent...

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Q: Valence electrons

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Q: ative pH before the addition of any HCl. ative pH after 56.0 mL HCl has been added. ative pH after 7...

A: 1) Before HCl , it is base. Hence , pH > 7 (A) is correct option.  2) after adding 56.0 mL it for...

Q: For the following statements about chemical equations, check the boxes that represent true statement...

A: A chemical equation is a blue print that represents a chemical reaction.  The reactants are represen...

Q: Hexamethylenediamine (C6H16N2) is one of the starting materials for the production of nylon. It can ...

A: Ans. For the percent yield of a chemical compound, we calculate theoretical yield of that chemical: ...

Q: A system does 551 kJ of work and loses 236 kJ of heat to the surroundings. What is the change in int...

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Q: For the following statements about chemical equations, check the boxes that represent true statement...

A: Please find your solution below : Chemical reaction is described by a chemical equation. Chemical eq...

Q: Calculate the maximum amount of moles of AlCl3 that can be produced when 6.82 moles of Al2O3 react w...

A: Given data : Moles of Al2O3 = 6.82 mol Moles of HCl = 34.1 mol

Q: Question 7 A reaction solution is prepared with [S20g2] = 0.0500 M and [I"] = 0.0400 M. The reaction...

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Q: How much heat is removed from the condensation of water at 25°C? Given the standard entropy of the f...

A: In this question we need to find out latent heat of vaporization. Let us solve this step by step. 

Q: The following set of kinetic data was obtained for a certain reaction. T, K 363 373 378 383 388 393 ...

A: The given data set is used to predict the effect of rate on temperature. According to Arrhenius equa...

Q: QUESTION 11 ow many valance electrons, respectively are in Arsenic and Germanium ? D 4 e & 5 e O5e &...

A: Valence electrons are the electrons which lies in the outermost shell of an atom or molecule. 

Q: Calculate the pH of a solution that is a mixture of 0.030M HNO3, 0.55M CH3COOH, and 0.015M HI. Ka fo...

A: Given data : HNO3 = 0.030 M HI = 0.015 M CH3COOH = 0.55 M

Q: What is the true density of Zr, an HCP crystal, in g/cm3? Given: Atomic Number = 40  Atomic Weight =...

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Q: (B) Give the conjugate acid of the following Bronsted-Lowry bases: ( i ) O2- ( ii ) H2PO4- Group ...

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Q: Which of the following represents the reaction of the weak base, CH3CH2COO", in water? O CH3CH2COO+ ...

A: Weak bases = CH3CH2COO^- 

Q: In 1993 the Minnesota Department of Health set a health risk limit for ethyl ether in groundwater of...

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Q: Hexamethylenediamine (C6H16N2) is one of the starting materials for the production of nylon. It can ...

A:

Q: What number of molecules (or formula units) are present in 1.80 g of each of the following compounds...

A: Please find your solution below : Avogadro's number is the number of atoms, molecules, ions, formula...

Q: ANION ELIMINATION TEST OBSERVATIONS ADDED REAGENT(S) OBSERVATIONS Ba(NO3)2 NVR HNO3, Fe(NO3)3 Blood ...

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Q: he following alkyl halide can be prepared by HBr addition to two different alkenes that are constitu...

A: The given molecule is alkyl bromide.    

Q: 1. Explain in 2 sentences how does the definition of “lipid” differ from the types of definitions us...

A: P.S.: According to the company guidelines, we have to answer only the first question. So, please kin...

Q: In the titration of HF with NaOH, which species are present at the equivalence point? HF, NaOH, and ...

A: Titration of HF with NaOH   

Q: A 51.74 g sample of a substance is initially at 25.6 °C. After absorbing 2939 J of heat, the tempera...

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Q: A chemist prepares a solution of silver(II) oxide (AgO) by measuring out 0.00332 umol of silver(II) ...

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Q: Consider the weak acids below and their corresponding Ka values. Rank the acids from weakest to stro...

A: Given Ka values: HNO2: (Ka = 4.0 x 10-4 ) HIO : (Ka = 2.0 x 10-11 ) C6H5COOH : (Ka = 6.5 x 10-5 ) Mo...

Q: subject) - maryhar X M <3- mary.h Ô https://www-awu.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH...

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Q: 1. In this method, the mass of the analyte or a compound derived from the analyte is determined. 2. ...

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for yo...

Q: Explain the major difference between the Michaelis-Menten equation and the Briggs-Haldane treatment ...

A: Micheaeli-Menten equation and Brigg-Haldane equation,both two equation describes enzyme Kinetics .

Q: Which of the following redox reactions will occur according to activity series? Cu(s) + 2HCl(aq) ? ...

A: Which of the following redox reactions will occur according to activity series?

Q: Ethylene glycol contains 38.7% carbon, 9.7% hydrogen, 51.6% oxygen, and a molar mass of approximatel...

A: First of all we will calculate the empirical formula by dividing percentage mass by their atomic mas...

Q: (a) If 45.0 g Ba(OCl)2 and 175mL of 8.00 M HCl are allowed to react, how many grams of chlorine gas ...

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Q: Find value of rate constant....

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Q: a. Calculate the molar mass of P2O5. Molar mass = g/mol b. Calculate the molar mass of Caz (PO4)2 . ...

A: Molar mass is the weight of one sample. First one is Phosphorus pentaoxide -contains 2 phosphorus at...

Q: Draw the structure of a triacylglycerol formed from glycerol, one molecule of stearic acid, and two ...

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Q: In the electrolysis of an acid solution, oxygen can be produced by the following half-reaction: 2H20...

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Q: Question 5 A 20.00 mL aliquot of 0.200 M KI is added to another aqueous solution whose volume is 30....

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Q: potassium and sulfur Express your answers as ions and chemical formula separated by a commas. rubidi...

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Q: .on three components True O False O Number of isomers of the .Ethane is one True O

A: We will be answering all the questions with proper explanation.

Q: 2. What type of intermolecular force of attraction is established when sodium chloride is dissolved ...

A: The type of intermolecular force of attraction is established when sodium chloride is dissolved in p...

Q: A chemist dissolves 717. mg of pure potassium hydroxide in enough water to make up 80. mL of solutio...

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Q: CH3 H,SO, HO

A: This reaction is known as internal electrophilic aromatic substitution reaction where benzene ring a...

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.