Calculations involving chemical formulas and equations. Analyze and provide complete solutions to the following problems:   a. Total # of molecules in 5.82g of SrH2. b. Mass in mg of 2.88 x 10 22 formula units of Bi(NO3)3.5H2O.

Q: HO2C CH2N2 H H Me., Me Et20 90 & (4 steps) Me., Me Me Me

A: Diazomethane (CH2N2) reacts with carboxylic acid to form methyl ester. CH2N2 abstracts proton from t...

Q: Molnupiravir, shown below, is an anti-viral medication used to treat COVID-19. HO OH HN- Но The appr...

A: carbon having 4 sigma bonds in its surrounding is sp3 hybridized  carbon having 3 sigma bonds in its...

Q: 2. At a particular temperature, the reaction below was studied N2O4 (g) ↔ 2 NO2 (g) a. Write the equ...

A: The reaction below was studied., N2O4 (g) ↔ 2 NO2 (g)

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A: Water is essential for all life on Earth. Water is required for the synthesis and structuring of cel...

Q: Suppose a 500, ml flask is filled with 1.6 mol of CO, 1.7 mol of NO and 1,8 mol of CO,. The followin...

A: Number of moles of CO = 1.6 mol  Number of moles of NO = 1.7 mol  Number of moles of CO2 = 3.6 

Q: An acidic solution containing 0.015 M La² +* is treated with NaOH until La(OH), precipitates. At whi...

A: The solubility product is an equilibrium constant which describes the solubility of a solid salt in ...

Q: Which reagent(s) and/or condition(s) are needed for positions 1 and 2? 1. OH 2. Br Br

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Q: 1. Many organic reactions approximately double their rates for each 10 °C rise in temperature. Do yo...

A: Electrophilic aromatic substitution (EAS) refers to the substitution reaction with benzene by electr...

Q: This is the chemical formula for talc (the main ingredient in talcum powder): Mg;(Si,O3),(OH); An an...

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Q: Which of the following is NOT a chemical reaction? Select one: O a. Decomposition of the protein ser...

A: A chemical change in the process in which a new compound is formed which shows completely different ...

Q: Construct the expression Kc for the following reaction. Sn(s) + 4 Cl:(g) = 2 SnCl-(1) 1 Drag the til...

A: Equilibrium constant : 

Q: 2. Calculate [A]/ [HA] ratio of phosphoric acid species presents in blood at pH=7.4. Identify specie...

A: Henderson Hasselbach equation is used in the preparation of a buffer.  pH = pKa + log [base][acid] T...

Q: Are chemical reactions reversible? In other words, is it possible the reverse the direction of a rea...

A: Concept:  Reversible reaction: In a reversible reaction the conversion of reactants to products and ...

Q: Consider the molecule shown below. NH2 Он Which of the following statements is true regarding this s...

A: To predict the correct option we have to draw proper chair conformation where it faces less steric i...

Q: What is the pressure in a 5.00 L tank with 7.60 moles of oxygen at 39.3 °C?

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Q: What happens if the solvent concentration falls below that of the silica stationary phase? What is t...

A: The chromatography technique consists of two phases mobile and stationary phase .Mobile phase is the...

Q: но. NH, OH "H,N. 2 OH HO. он Residues of amino acids are labeled 1 through 9. a) Based on chirality,...

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Q: Some cherical compounds are listed in the first column of the table below. Each compound is soluble ...

A: Strong acids are those species which dissociates completely to  furnish H+ ion when dissolved in wat...

Q: How many moles are in 239 g of iron?

A: Given :- mass of iron = 239 g  To calculate :- number of moles of iron

Q: ^CO2Me Me- Me2CuLi H H Et20 Me., Ме., Me -78 °C, 30 min Me See the Michael Addition Me Me

A: Gilmann reagent is a soft reagent which prefer 1,4 michael addition.

Q: This is the chemical formula for epinephrine (the main ingredient in adrenaline): C,H1303N A biochem...

A: We have to predict the moles of Hydrogen in the sample.  

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A: pH meter is an instrument which is used to measure the pH of any solution. Since it is an instrument...

Q: pka of Hypobromous acid is 8.60 What must be the minimum concentration of hypobromous acid in 1.00L ...

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Q: If you combine 250.0 mL of water at 25.00 °C and 110.0 mL of water at 95.00 °C, what is the final te...

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Q: Synthesis gas (a mixture of ?2 and ??) can be produced by the catalytic reforming of methane with st...

A: Now in ist reaction is between methane gas and steam making it absorb energy for reaction to occur t...

Q: 2) Calculate how you would prepare 1.000 / of a pH 9.50 buffer made from NH3 and NH,CI. You are prov...

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Q: Which of the following is true regarding the Heck coupling reaction? 1)Bond formation can occur bet...

A: There are several coupling reactions which were catalysed by the palladium catalysts.  Some of them ...

Q: limiting reagent

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Q: 6. How many signals on a 'H NMR spectrum would be predicted for the following compounds, which compo...

A: Each Chemically non-equivalent protons gives a signal. All equivalent protons gives only one signal....

Q: When 5.93 g of potassium sulfate (K,SO4) is dissolved in 111 g of water in a styrofoam calorimeter o...

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Q: What is the stereochemical relationship between the compounds below? HO -H- LOH HO H- но- но- -H- H3...

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Q: CO2ME Me- Me CO2ME hv 12 Ме., PhCI Me Me 110°С, 87% Me Ме Ме

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Q: From the stock solutions of 1.00-mol L acetic acid and 1.00-molL of sodium acetate, six solutions we...

A: Since you have asked a question with multiple subparts, we will answer only first 3 subparts for you...

Q: A sample containing a mixture of SrCl, · 6 H,0 (MW = 266.62 g/mol) and CsCl (MW = 168.36 g/mol) orig...

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Q: A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 5....

A: The solution is given below - 

Q: 125 mL of 0.3 M HC1 was mixed with 320 mL of 0.15 M NaF. What is the pH of the solution after mixing...

A: Given data : Concentration of HCl = 0.3 M Volume of HCl = 125 mL Concentration of NaF = 0.15 M Volum...

Q: 1. Calculate the change of enthalpy (in kJ) for each of the following processes: A. Melting 1.50 mo...

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Q: Construct the expression Kc for the following reaction. 2 SOCI:(g) + O:(g) = 2 SO:CL(g) 1 Drag the t...

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Q: Which of the following is the product for the given reaction? HNO3 ? H2SO4

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Q: Give the symbol and the oxidation number of the following : potassium ion   6.  hydrogen ion ferrou...

A: symbol and the oxidation number of the following :   1. potassium ion  6. hydrogen ion 2. ferrous io...

Q: I 2 3 4. Which of the following elements requires the greatest amount of energy to remove its outerm...

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Q: the standard enthalpies of fo

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Q: CH3NH, is a weak base with K, = 4.0 x 104. What is the pH of a 1.0 M solution of CH3NH;CI? O 5.3 O 1...

A: Here salt is a combination of weak base and strong acid so we can determine pH by applying hydrolysi...

Q: OIf  = a +2x B= d - 2x %3D %3D Evaluate:AB f(x)

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Q: TMS TMS Me2CuLi H H Me., Me Et20 Me., Ме Ме со-Ме CO,Me

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Q: Predict the reactants of this chemical reaction. That is, fill in the left side of the chemical equa...

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Q: In walking a kilometer, you use about 100 kJ of energy. This energy comes from the oxidation of food...

A: Solution .              Given that                      For 1km  energy required = 100kj 30% efficie...

Q: с. 1. 2 equiv PhLi THE EtO. 2. H30* d. NABH4 МеОН

A:

Q: 3.Draw the crown ether that would be most appropriate for the reaction below. NaF benzene Br F.

A: The appropriate crown ether for the SN2 reaction is given below

Q: On what amino acid do caspases specifically cleave their substrates? (Choose p20/p10 dimers cleave c...

A: The correct matching is as follows:  

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.