me molality

Q: Chemical name of the gas evolved when hydrogen fluoride is made to react with silica.

A: Since you have posted multiple questions, the answer for first question is given below. Kindly repos...

Q: Consider the following standard reduction potentials: 2H+ + 2e− → H2 (E = 0.00 V) Sn+2 + 2e− → Sn (E...

A: A given reaction or process is spontaneous if E°cell > 0 i.e E°cell is positive. 

Q: Write the equilibrium constant expressions (Kc and Kp) for the following reactions:

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Q: [2] Write a chemical equation for an equilibrium system that would lead to the following expressions...

A: Answer - (a) According to the question - The equilibrium constant( K ) expression as follows - The ...

Q: When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution (dissolvin...

A: heat of dissolution is the heat which may be releases or absorbed when a solid is dissolved in water...

Q: Devise a 4-step synthesis of the product from the starting material. CH3 1. reagent 1 2. reagent 2 H...

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Q: Balance the reaction, do not leave any fractions, don't leave anything blank, then answer the questi...

A: For the given reaction , Mg(OH)2 +H3PO4--->Mg3(PO4)2 +6H2O  We have to fill the blanks .

Q: A. Determine the best fit line (with r) of the calibration curve. B. Calculate the equilibrium conce...

A: A) Calibration curve Equation for Best-fit line: y = 14.903x + 0.0493                              ...

Q: Timer Calculate the molarity (M) of a solution prepared by dissolving 14.7 g of HCI in enough water ...

A: Molarity is defined as number of moles of solute dissolved per litre of solution.

Q: [References] The reaction of a mixture of CO and H2 is predicted to produce 586 g of CH3OH. CO(g) + ...

A: Given: Theoretical yield of CH3OH = 586 g Actual yield of CH3OH = 469 g

Q: 2. A solution that may contain Cu, Bi?", Sn*, or Sb* is treated with thioacetamide in an acidic medi...

A: 2. subjective examination Dark encourage halfway disintegrated in basic medium : could be Cu2+ Stayi...

Q: )A 315.5 g of sodium chloride is dissolved in 900 g of water at 25 degree Celsius. Find: a. Final va...

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Q: Answer part A-E. a. When iron rusts, solid iron reacts with gaseous oxygen to form solid iron (III)...

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Q: An Ag/AgCl electrode dipping into 1.00 M HCI has a standard reduction potential of +0.2223 V. The ha...

A: Answer: To find out the molar concentration of chloride ion in the solution we have to use the Nerns...

Q: Balance the reaction, do not leave any fractions, don't leave anything blank, then answer the questi...

A: Given,  Balance the reaction, do not leave any fractions, don't leave anything blank, then answer th...

Q: Manganese commonly occurs in nature as a mineral. The extraction of manganese from the carbonite min...

A: First step :  2MnCO3(s) + O2(g) -------> 2MnO2(s) + 2CO2(g)  Second step :  3MnO2(s) + 4Al(s) ---...

Q: 2. What quantity of heat is associated with the synthesis of 35.6 g of NH3 according to the followin...

A: Nitrogen oxide reacts with water to form ammonia and oxygen. According to the given reaction when on...

Q: he mass percent o

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Q: molecule or polyatomic ion polar or nonpolar? atom closest to negative side polar HBr nonpolar O pol...

A: Answer: All three compound are covalent compounds, therefore their polarity or non-polarity will dep...

Q: Show what is asked for the following alkanes. 1. Pentane a) combustion b) halogenation 2. Butane a...

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Q: Consider an isothermal column of an ideal gas at 25oC. What must be the molar mass of this gas be if...

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Q: A particular mass of N2 occupies a volume of 1.00 L at –50 °C and 800 bar. Determine the volume occu...

A: Answer: Ideal gas law: PV=nRTPVT=nRhere:P=pressure of the gasV=volume occupied by the gasn=number of...

Q: c. Write the ionization equilibria for aspartate. Calculate the pl. Show your work. H3N (9.8) CH (2....

A: We are required to find isoelectric point of the aspartic acid Also we are required to label the 3 s...

Q: The value of Ksp for AgBr is 5.4 x 10-13. For the Ag/AgBr electrode, AgBr(s) + e Ag(s) + Br (aq) E°A...

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Q: 2. Circle all the compounds below that will racemize when treated with a weak acid or base. Explain ...

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Q: 109.613 pm 216 pm 105.120 pm Not stated

A: Given,  Edge length in BCC  = a Relationship between a and r  4r = (3)1/2a In BCC particles are pres...

Q: Calculate the mass percent of Cu in CuCl2. (Mass of Cu= 63.55 g and Cl= 35.5 g) ii) Calculate the nu...

A: Mass percent is the percent ratio of mass of element in the compound to the total mass of the compou...

Q: Calculate the magnesium ion molarity for a solution which has magnesium ion concentration of 176.4 p...

A: Concentration of magnesium ion = 176.4 ppm  Molarity of this solution = ?   

Q: The following initial rate data are for the reduction of nitric oxide with hydrogen: 2 NO + 2 H2 N2 ...

A: 2 NO + 2H2 -------> N2 + 2 H2O  Rate = k [NO]m[H2]n  k = rate constant  m = order of reaction wit...

Q: 5. A conductivity cell filled with 0.10 demal KCI solution gives at 25°C a resistance of 910 ohms. W...

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Q: molarity

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Q: Consider the reaction: AC(9) + 2B(9) AB2 (8) + C9) What is the equilibrium expression for this react...

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Q: Purification of benzoic acid 1. What is the purpose of washing the crystal in the filter paper with...

A: 1) Answer: Benzoic acid is prepared from toluene industrially.  Toluene is react with cl2 gas under ...

Q: Sketch within a cubic unit cell the given direction and plane. The origin point for the index of dir...

A: The planes in unit cubic cell are pictorially shown below

Q: 2. A solution that may contain Cu, Bi*, Sn*, or Sb2* is treated with thioacetamide in an acidic medi...

A: To identify:  What cations are present in the solution. Given:    Cu²+, Bi²+, Sn4+ , or Sb²+  When t...

Q: A typical respiratory reaction by humans is the oxidation of glucose (C, H1O6) by the oxygen gas (O2...

A: Answer: This question is based on stoichiometric calculation, where we have to convert the mass of o...

Q: Explain why the behavior of H2 (positive deviation) is different from the behavior of CH4 and NH3, (...

A: A question based on intermolecular forces that is to be accomplished.

Q: A 20µM solution is prepared by diluting ml of a 0.1mM solution into 500ml of wate

A: Number of moles of solute before dilution is equal to number of moles after dilution  M1V1 = M2V2  M...

Q: . What is reactant selectivity in zeolite catalysis?

A: What is reactant selectivity in zeolite catalysis?

Q: Complete hydrolysis of which of the following disaccharides yields a single monosaccharide? lactose...

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Q: Show what is asked for the following alkanes. 1. Butane a) combustion b) halogenation c) substitutio...

A: The asked questions contain the chemical reactions of the respective alkanes. Which can be shown as:...

Q: Indicate whether either an increase or a decrease of pressure obtained by changing the volume would ...

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Q: 4. Using resonance structures, show how the intermediate is stabilized in the reaction of p-chloroni...

A: It is an example of Nucleophilic aromatic substitution reaction Here we are required to show stabili...

Q: The following statements about anthracene are true EXCEPT: i. It gives a negative result in Baeyer'...

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Q: A chemist prepares a solution of silver(I) nitrate (AGNO,) by measuring out 413. umol of silver(I) n...

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Q: Consider the following reaction for formation of nitric acid from the pollutant nitrogen dioxide rea...

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Q: Assessment one F Direction: In a long 1. Find the mo 2. What is the

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Q: 2. Consider the transition for the H atom from n=4 to n=2. a) What would be the theoretical change i...

A: Given-> n(initial) = 4  n(final) = 2  

Q: 2. In the titration of 50 ml. of 0.05 M of AGNO; solution with 0.05 M KSCN solution, calculate the m...

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Q: 7:30 Which alkyl halide in each of the following pairs will react faster in an SN2 reaction with OH-...

A: Nucleophilic substitution biomolecular reaction (SN2): The bimolecular nucleophilic substitution rea...