What is the pH of a solution containing 0.876 mol L-1 of HCl and 1.069 mol L-1 of a weak acid with pKA = 5.76 ?

Q: nydrok 5. If a beaker contains 2.0 moles of water. How many grams of water are the beaker?

A: Number of moles of water = 2 moles

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Q: Consider the Gibbs energies at 25 °C. Substance AG; (kJ · mol-1) Ag*(aq) 77.1 CI"(aq) -131.2 AgCl(s)...

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Q: Balancing Redox Reactions: Using oxidation number method 1. Fe + HCI FeCl3 + H2

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Q: 1. Predict the product of the following transformation. 1. NaOEt 2. PHCH21 3. H30* CO2Et heat CO2H N...

A: Given:- We have to find the product . These are the reactions of carbonyl compounds.

Q: A volume of 500.0 mL of 0.140 M NaOH is added to 565 mL of 0.200 M weak acid (?a=1.59×10−5). What is...

A: Given,  The pH of the buffer solution made by using 500.0 mL of 0.140 M NaOH is added to 565 mL of 0...

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A: 1.) Mirror image is rendered by placing a hypothetical mirror in front of molecule and draw the imag...

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Q: Which of the following equations is a mathematical definition of enthalpy? O AH AE+ PAV O AH = AG + ...

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Q: Question 28 Which type of half-cell, when used along with a Mn/Mn2+ half-cell, gives the largest cel...

A: Reduction potential of Pb+2 / Pb = - 0.1262 V Reduction potential of Cu+2 /Cu =  + 0.34 V Reduction ...

Q: This is the chemical formula for acetic acid (the chemical that gives the sharp taste to vinegar): C...

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Q: strong or weak? acid

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Q: Draw the line bond structures, Lewis structures, as well as indicate the hybridization of each carbo...

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Q: What VSEPR shapes are in sucrose

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Q: If a 0.50 M solution of an unknown monoprotic weak acid has a pH of 2.44, what is Ka for this acid? ...

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A: We have given with set of quantum numbers and have to tell which are possible.

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Q: Draw the expanded, or complete, structural formula for the hyrdrocarbon represented by the skeletal ...

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Q: press Ksp in terms of molar solubility, x, for the salts with the given formulas. AB(s) Ksp = AB, (s...

A: Solubility product is the product of concentration of ions raise to the stchiometric coefficients.  ...

Q: 1. A similar experiment as this lab is done as following: 0.456 g of solid AgCl is added a 25 mL sol...

A: Given, Reaction : AgCl (s) + L (aq) → AgL+ (aq) + Cl-(aq)

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A: Buffer is a solution of weak acid or weak base with its conjugate base or conjugate acid respectivel...

Q: TOPIC 8: Drawing Resonance Structures How many nuclei can reasonably bear the charge in each of the ...

A: This is the concept of resonance.

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Q: The following essential oil is steam-distilled from heartwood chips, and its perfume is a pleasant b...

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Q: 1.What is the absolute configuration of this isomer of 2,3-dihydroxybutanal? pls explain. 2. What is...

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Q: _____ 9.  What is the difference between a strong acid and a weak acid?   A strong acid can hold m...

A: Given:- What is the difference between a strong acid and a weak acid? To find:- The correct option a...

Q: What is the a) vapor pressure (Psoln), and b) osmotic pressure (π) of a 26.0% (w/w) aqueous glucose ...

A: Glucose is non-volatile in nature. 

Q: Consider the following reaction which produces phosgene, a toxic gas used in WWI. CO (g) + Cl2 (g)...

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Q: A 0.550 mol sample of HI was injected into a 2.0 L reaction vessel held at 400°C. 5. Hydrogen iodide...

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

Q: You wish to prepare 207 grams of 14.7 % Ca(NO3)2. You will need grams of calcium nitrate and mL of ...

A: Given mass of solution = 207 gm 

Q: Answer the following question. 1. The interstitial space between the particles is called __________...

A: Interstitial space is between the particles.  

Q: =105.79 sters CHARLES LAW A balloon, origiinally at 6.28 Land 211K has its temperature increased to ...

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Q: We want to prepare a buffered solution having a pH of 4.97 using concentrated (23.6 M) formic acid (...

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Q: A Calculate the freezing point of A, in °C, from this data: AH: (KJ/mole) S (J/mole K) A(s) A) Ag) -...

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Q: Liquid hexane (CH, (CH,) CH,) reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide ...

A: Mass of hexane = 44. 0g Mass of oxygen = 198 g

Q: (Be sure to specify states such as (aq) or (s). If a box is not needed, leave it blank. If no reacti...

A:     Ca(OH) 2 (aq) +    HBr(aq) ———>

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A: Given, The molecular formula of the compound = C6H18O3 Empirical formula of the compound = ? Empiric...

Q: 4

A: To find the ratio of the polar optical phonon emission rate to the absorption rate for AIAs at 300K.

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Q: Write balanced equations describing each of the reactions in Steps1 through 5. A solution may contai...

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Q: Jse names from the table below. List each class of functional group only once. If there are fewer th...

A: Functional group is a substituent because of which chemical reaction takes place. 

Q: For H2SO4, Ka,1 is very large and pka,2 = 1.96 at 25 °C. For 0.00165 mol L-1 H2SO4(aq) at 25 °C, cal...

A: The solution is as follows:  

Q: For the formula: q = m c ∆T, What does the c stand for? * 1 point heat mass specific heat change in ...

A: Ans.  c stands for specific heat