What volume of 5.0M NaCl is needed to provide10.0 grams NaCl?  Atomic weights: Na = 22.99  Cl = 35.45

Q: A certain material has the following lattice parameters: a = 667.4 pm b = 611.7 pm c = 330.4 pm alph...

A: From the given data, a ≠ b ≠ c and angles alpha = gamma ≠ beta 

Q: equilibrium constant

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Q: 1) Fill the blanks in the following sentences with the correct thermodynamics term- b) c) The substa...

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Q: Answer questions below showing calculations. 1. Knowing that one mole of KHP, C8H5O4K, reacts with ...

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Q: One mole of iron None of the other choices is correct. O is heavier than one mole of lead (Pb). O is...

A: Given  One mole of iron

Q: Use the References to access important values if needed for this question. Draw the structure of the...

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Q: Which of the following samples contains the greatest number of atoms? 2.0 mole of Ar 0.1 mole of Fe ...

A: To solve this problem we have to calculate the number of atoms in each given samples .

Q: For the compound shown below, identify the two beta hydrogens and give the major Hofmann elimination...

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Q: n (molecular equation)

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Q: 26. The chemical reaction below is an example of what type of reaction: Mg(s) + H2SO4(aq)→ MGSO4(aq)...

A: Mg(s) + H2SO4(aq) ---> MgSO4(aq) + H2(s)  

Q: A buffer solution is composed of 5.00 mol of acid and 1.75 mol of the conjugate base. If the pKa of ...

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Q: I. Observing pH Changes in Water and Buffer Solutions upon Addition of HCl and NaOH Solutions soluti...

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Q: Refer to the (unbalanced) equation CS2 + Cao – CO2 + CaS. How many grams of CaS are produced if 53 g...

A: Weight of CO2= 53 gram  CS2+CaO-> CO2 + CaS     

Q: Radium-221 has a half of 30 sec. How long will it take for 82% of a sample to decay?(Round your answ...

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Q: Titrations are generally both more accurate and more precise the smaller the concentration of titran...

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Q: If the tax on alcohol is Php 500 per proof gallon, how much tax must be paid on 5 gallons of alcohol...

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Q: A buffer that is 0.671 M in acridine (C13H9N) and 0.671 M in acridinium chloride (C13H10NCl) has a p...

A: Given- Molarity of C13H9N = 0.671 M Molarity of C13H10NCl = 0.671 M Volume of buffer = 100.0 ml Volu...

Q: Balance the equation in basic conditions. N2H4 + Cu(OH)2 -> N2 + Cu

A: Balance chemical reaction: 2 Cu(OH)2 + N2H4 ---> 2 Cu + N2 + 4H2O

Q: Calculate the volume, in milliliters, of 0.170 M NaOH that must be added to 409 mL 0.0463 M 3-(N-Mor...

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Q: What is the pH of a 0.65 M solution of ascorbic acid?

A: Given :-  Molarity of 0.65 M solution of ascorbic acid = 0.65 M  pH of 0.65 M solution of ascorbic a...

Q: Calculate the wavelength of a photon (in meters) that has a frequency of 2.83 x 1013 s-1.

A: Given, Frequency of a Photon (f) = 2.83 x 1013 s-1 Wavelength of a photon (λ) = ? m Note: speed of l...

Q: Sort the following molecules by electron group geometry by dragging and dropping each symbolic repre...

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Q: 14. Calculate the volume in milliliters of a 1.420 M NAOH solution required to titrate the following...

A: Using stoichiometric ratio we can determine how many moles of NaOH required in each titration . From...

Q: slion ith an initial concentration of 0. 3166 M. cOci, (g) → co (g)+ Cl, (g) -10 K = 2.2 × 10 the re...

A: ICE table    COCl2 CO Cl2 I 0.3166 0 0 C -x +x +x E 0.3166-x x x Kc = [Cl2][CO]/[COCl2] ...

Q: Calculate the induced dipole moment of SO2 due to a K* ion that is 5.2 Å away from the center of the...

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Q: II. Predict which substance in each set of pairs given under certain condi- tions will dissolve fast...

A: The factors affecting solubility are, surface area, temperature, pressure, nature of the solute-solv...

Q: A solution of HCN was prepared in 2.5 L of water.  The pH of this solution at 25°C was determined to...

A: We have to calculate the moles of HCN.  

Q: Question 21 Which of the following compounds is the most nucleophilic? CH30- O (CH3)3COH CH3OH O CH;...

A: we need to determine the most nucleophilic species from the given options

Q: In a 0.55 mM aqueous solution of butanoic acid (C,H,CO,H), what is the percentage of butanoic acid t...

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Q: How will you measure the volume of the Erlenmeyer conical flask?

A: Erlenmeyer conical flask is mainly used in chemistry labs during the process of titration. The titra...

Q: The reaction for the combustion of propane is kcal (DOʻHT + (8) 0E – (3)OS + (3)*H°Ɔ mol AH = -526.3...

A: Given, C3H8 (g) + 5O2 (g) → 3CO2 (g) + 4H2O (l) ∆H = - 526.3 kcal/mol Note: negative sign (-) indica...

Q: If 25.00 mL of saturated Ca(OH) 2 solution was titrated with 0.050 M HCI and 19.37 mL of 0.050 M was...

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Q: Ellie Mint is trying to determine the reaction mechanism for the following reaction: 2 H2 + 2 NO—>N2...

A: The rate law of a reaction is determined by the slowest step of reaction. The sum of molecularity of...

Q: What is the theoretical yield of an aldol condensation reaction involving cyclopentanone as the keto...

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Q: Locate the radial nodes in the 3s orbital of an H atom. Give them in Å.

A: Solution - According to the question - Given -

Q: CH30

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Q: Problem: A gas undergoes 3 process that completes a cycle in series P1= 10 atm PV1.1=constant P2= 50...

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Q: d) A(n) reaction is one where the products have lower energy than the reactants. is a device used to...

A: (d) --> An exothermic reaction is one where the products have lower energy than the reactants. (e...

Q: Predict the product, if any, of reaction between propanoyl chloride and aniline.

A: In this question,we have to write the reaction between propanoyl chloride and aniline

Q: 1. Observing pH Changes in Water and Buffer Solutions upon Addition of HCI and NAOH Solutions soluti...

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Q: The major product formed in the following reaction is CO2M TiCl4 H CO2ME CO2ME (a) (b) H. H. CO2ME (...

A: Here given a Diel Alder's reaction. We have to choose the product from the option and to explain.  

Q: what are the roles of glutamate and histidine in the catalytic mechanism?

A: Please find the below attachment.

Q: The equilibrium constant K, for the reaction HCN(aq) =H*(aq) + CN (aq) is 4.9 x 10-10 at 25 °C. Calc...

A: The equilibrium concentration can be calculated as follows

Q: Hl HO OH hexal p ortitafs of 13.5

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Q: SN2 reactions proceed with racemization at the center undergoing substitution O slightly more invers...

A: Choose the correct option for SN2 reaction--

Q: Using the solubility curve in the second picture answer the following questions.

A: Saturated solution is the solution in which no more solute can be dissolved at the same temperature....

Q: True or False: The definition of a mole is an Avogadro's number of a specific entity, such as an ato...

A: The statement is True.  A mole is an Avogadro's number of some specific entities or chemical units a...

Q: Classify the relationship between the two structures shown below: and Br Br Br Br Identical Enantiom...

A: Isomer are compounds which have same empirical formula If configuration are same at every carbon cen...

Q: 1) КОН 2) EtBr 3) H2NNH2 N-H Draw Your Solution Br 1) NaCN, DMSO 2) H;0“, heat 3) SOCI, 4) excess NH...

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Q: forensic chemist is given an unknown substance for analysis. It is suspected that the unknown substa...

A: Given :   Mass of unknown substance = 0.5 g  Mass of benzene = 8.0 g  Freezing point of solution (Tf...

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".