A liter of solution contains 0.020 mol KCN and 0.020 mol HCN. Solve for the pH and β of the buffer solution. pKHCN = 9.2

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A: The balanced equation is  Zn(s) + 2HCl(aq) ⇒ ZnCl2(aq) + H2(g)

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A: We have find out the activity coefficient of K+.

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Q: (i) (k) (m) OH Хоні X, I PCC CH₂Cl₂ CrO3 OH aq. H₂SO CH₂O K H₂SO4 CH3OH (h) (1) XOR CrO; OH aq. H₂SO…

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Q: Although they were formerly called the inert gases, at least the heavier elements of Group 8 do form…

A: To find the theoritical yield and percentage yield of a  given chemical reaction.

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Q: Rank the pKa values of the conjugate acids for nosylate, tosylate, and brosylate

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Q: 4. Cobalt phosphate (Cos(PO4)2, 15.38 g. 366.75 g/mol) and chromium(III) chloride (CrCl3, 3.46 g,…

A: (a) To calculate the equilibrium concentration of each ion for the following reaction.  Co2+(aq) +…

Q: Give typed explanation A 0.10 M solution of an acid, HA, has a pH of 3.0. What is the Kb of the…

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A: Given: Concentration of stock solution = 0.8 M Volume of stock solution = 10 mL Water added = 6 mL

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Q: Н.С х НО НО CH3 0 каза паза HC CH3 -H -Н -H -H CH₂ НО- -ОН CH НО. Н НО- НО Н- -OH -Н -н -ОН НО. CH,

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Q: How many moles of carbon dioxide are in 211 g of Carbon dioxide? 4.8 4.79 (with margin: 0)

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Q: How many kilograms of sodium sulfate are necessary to weigh out of 9.50 moles?

A: Number of moles of sodium sulfate, Na2SO4 (n) = 9.50 moles

Q: which is the e-isomer?

A: When substitute group are opposite side on double bond. Is called E isomer.

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A: This question belongs to Chemical Bonding.

Q: Please propose reagents that complete the following transformation, showing all intermediates.

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Q: SF6 1. How many lone pairs on the sulfur? 2. Hybridization on the sulfur?

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Q: Consider the following balanced equation: 4NH3 +7026 H₂O + 4NO2 [NH 3] [02] Rate (M/s) 1.0.273 0.586…

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Q: A ---> B  (2nd order)                               Time (sec)      [A]…

A: Given A ---> B  (2nd order)                               Time (sec)      [A]…

Q: Ph cati OH 1 enantiomer (1 chiral compound) 1:1 mix of enantiomers mixture of diastereomers achiral

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Q: Give the IUPAC name for the following compound. Br CO,H (select) (select) NO₂ ethylbenzoic acid

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Q: 4. ОН strong acid

A: The given reaction is an example of acid mediated conversion of alcohol to most substituted alkene.

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Q: A gas with an initial pressure of 1.19 atan at 75 °C is cooled to -35°C Express the pressure to…

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Q: Write a balanced molecular equation, a total ionic equation, identify the spectator ions 6.…

A: Solution- (6). Thiosulfuric acid + lead(II) nitrate:Balanced molecular equation: H2S2O3(aq) +…

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Q: Consider the following energy diagram. Energy Which step has the least AG? A-C OC-E E-G C OG-I F H M

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Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.