Calculate the pH of a buffer solution that is 0.200 M in HCN and 0.120 M in NaCN. The K₂ of HCN is 4.90 x 10-10

Q: The equilibrium constant, Ke, for the following reaction is 4.04 x 104 at 428 K. PC15 (9) PC13 (g) +…

A: Given -> PCl5(g) <-----> PCl3(g) + Cl2(g)  Kc = 4.04 × 10-4 Equilibrium concentration of…

Q: name the compounds V(CO)2Br3]SO4 Ca[Cu(SO4) (H2O)2(N3)] Ag[(CN)(NH3)3]

A: This question belongs to coordination chemistry.

Q: The air at the top of Mount Everest has pressures of 201.0 torr N2, 50.0 torr O2, 2.0 torr Ar, and…

A: Note: Since you have posted multiple questions, we will provide the solution only to the first…

Q: A calibration curve plotting E vs. pCo is used to measure the concentration of Co2+ in solution at…

A: The concept used here is from Physical chemistry.  And topic used ia from Electrochemistry.  The…

Q: A sample of 0.75 g of hydrogen gas was obtained by reacting 32.5 g hydrochloric acid with 18.0 g…

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Q: CP Links M Connect Registration Module Knowledge Check An arctic weather balloon is filled with 3.76…

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Q: Give the starting materials (a) (b) 04 (c) (d) OD Br Br Br Br- NINH,

A: This is a simple problem of organic reaction mechanism where SN2 mechanism is taking place.

Q: Consider the following reaction: 2CH₂Cl₂(g)CH₂(g) + CCl4(9) If 0.200 moles of CH₂Cl₂, 0.362 moles of…

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Q: A 3D representation of a cyclohexane (C6H₁2) molecule, a cyclic compound used in the manufacture of…

A: In this question, we will see the geometry of each carbon atoms and as well as hybridization of each…

Q: Lucas test Ohot, acidic KMnO, FeCl, test Jones test OH VS.

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Q: 3) Which of the following reagents will quantitatively convert an enolizable ketone to its enolate…

A: The concept used here is from general organic reactions.  Here according to the question we have to…

Q: 5. Species Y is to be extracted from a 1.00 L aqueous sample using multiple 20.0 mL portions of an…

A: To find out the total volume of extractant required to achieve a 95 % of Y from a 1.00 L aqueous…

Q: For the oxidation-reduction reaction equation Ca + Cl₂ CaCl₂ indicate how many electrons are…

A: Electrons - 2 e- Explanation -->  When the Calcium element reacts with the Chlorine gas then the…

Q: The conjugate acid of H₂PO is

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Q: Write the formula of the conjugate acid of CH₂CO₂.

A: Answer:- This question is answered by using the simple concept of conjugate acid and conjugate base.…

Q: A sample of curium-243 was prepared. After 1.00 year, the activity of the sample had declined from…

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Q: The initial temperature of a 326 g sample of iron is 26.1 °C. If the sample absorbs 3.43 kJ of…

A: Specific Heat capacity is amount of heat required to increase the temperatures of one gram of…

Q: application of hess's law to pharmacy

A: Hess' Law can be used to determine the total energy required for a chemical reaction. This can be…

Q: Which of the following (assuming ideal gases) occupies the largest volume at 273 K and 1 atm?…

A: Well, it is mentioned that gases are ideal. so we know Avogadro's law, The volume of the gas is…

Q: Check the box under each aldose. If there are none, check the None of the above box under the table.…

A: -> An aldose contains one aldehyde group in single molecule. -> Consists of carbon atom which…

Q: Consider the reaction: C(s) + 1/20₂ (g) = CO(g) Write the equilibrium constant for this reaction in…

A: K is equilibrium constant and it is equal to concentration of product divide by concentration of…

Q: The equilibrium constant, Ke, for the following reaction is 1.80 x 104 at 298 K. Calculate Kp for…

A: Given -> NH4HS(s) ----> NH3(g) + H2S(g)  Kc = 1.80 × 10-4 T = 298 K

Q: 1. Assign the oxidation number to all atoms in each compound. a. Al₂(CO3)3 b. (NH4)2SiO3 Al N H Si

A: We have been given two ionic compounds and we have been asked to find out oxidation number of all…

Q: What is the pH at the equivalence point in the titration of a 22.4 mL sample of a 0.326 M aqueous…

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Q: Data you may need: 1 cal = 4.18 Joules ; density of water = 1g/mL Burning ethanol can be used as…

A: The amount of energy required liquid substance to transform into a gas is called Enthalpy of…

Q: Carbon monoxide reacts with water to form CO2 and H₂ as shwon below. The reaction is performed at…

A: Initial number of moles of H2=0 Equilibrium number of moles of H2=0.2 Thus, change in number of…

Q: The equilibrium concentration of hydroxide ion in a saturated magnesium hydroxide solution is that…

A: For Mg(OH)2, Ksp = 4S^3

Q: Consider the reaction: 3CH4(g) → C3H8(g) + 2H2(g) a. Calculate Gof at 298 K (From Appendix C Gof…

A: According to the question, The reaction is as follows, 3CH4(g) → C3H8(g) + 2H2(g) The value for the…

Q: 24 25 26 27 What is the pOH of a 0.035 M HNO3 solution? The pOH of a 0.0280 M solution of HCI is…

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Q: What is the likely problem with doing a diethyl ether/water extraction on the following reaction…

A: Diethyl ether is a typical aprotic solvent used in laboratories. It is a hard Lewis base that reacts…

Q: Li & H₂C-C CH3 2. H3O* 1.

A: In this question, we will draw the structure of the major organic product.  In this reaction,…

Q: An element X has mass number 35 and number of neutrons 18. Write atomic number and electronic…

A: We know Mass number= Number neutron+ Number of proton The atomic number is basically the number of…

Q: QUESTION 7 What is the [OH -] in a solution that has a [H 3O +] = 2.0 × 10 -4 M?…

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Q: c-0.127 +0.02 d. 0.127 +0.002 2)) what is the molar concentration of Fe ions of 10.42% (w/w) Fe(NO))…

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Q: D 3 5 1. A sample of gas at a pressure of 752 torr and occupies a volume of 5.12 L. What will the…

A: We can calculate the volume, pressure by Boyles law ,Gay lussac law and ideal gas equation.

Q: A I liter solution con Ins 511 M acetic acid and 0.414 M potassium acetate. Addition of 0.342 moles…

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Q: If [OH- ] is 2.45 x 10-10 M, what is [H3 O+ ]?

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Q: 3. In some circumstances, it is possible for a reactant to follow "half-order" kinetics, that is,…

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Q: 12. [-]The gas phase reaction 2N2O5(g) → 4NO2(g) + O2(g) obeys first order kinetics. The half-life…

A: According to the question, The half-life (t12) for the reaction at temperature (T1 = 0+273 = 273 K)…

Q: EXERSICE 1 Calculate: a) the thermal De Broglie wavelength and b) the transport contribution to the…

A: Given=  Temp. ---> 4000k Atomic mass of Xe= 131.29 Side of cubic = 2 cm

Q: For each reaction below, write the following information: 1. The type of the reaction (SN2, SN1, E1,…

A: The carbon containing the Cl atom is a secondary carbon. In addition, the nucleophile is relative…

Q: Calculate the pH in a titration of 40 mL (0.040 L) of 0.100 M barbituric acid (Ka = 9.8 × 10−5) with…

A: Given :  40 mL of 0.100 M barbituric acid  (Ka = 9.8 × 10−5) 29.3 mL of 0.100 M KOH  To find :  pH…

Q: 8) Arrange these compounds in order of increasing boiling point. I. 1-butanol II. butanal A) I<II…

A: Correct answer - (B) - II &lt; I &lt; III Boiling points of the compounds --&gt;  1-Butanol - 117°C…

Q: Diazene, N₂H₂ (also known as diimine), is commonly used as a reagent for organic syntheses. Label…

A: The covalent bond is formed by the overlap of the atomic orbitals.

Q: Identify the species oxidized, the species reduced, the oxidizing agent and the reducing agent in…

A: Oxidizing agent is one which itself get reduced but oxidise the next species which is present.…

Q: If there are no a amino acids at all, check the "none of them" box under the table. Note for…

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Q: icmillan Learning Calculate either [H,O*] or [OH-] for each of the solutions at 25 °C. Solution A:…

A: At 25°C , H3O+×OH- =1×10-14 PH=-logH3O+ When PH of the solution is &gt;7, then it is a basic…

Q: Part 2: The Ideal Gas Law and Combined Gas Law 1. 4.5 x 1023 molecules of O2 fill a 4.5 L container…

A: Mole is equal to number of molecules divide by avagadro number

Q: Please find the stoichiometric balance for the reaction equation Zn(s) + H+(aq) → Zn2+(aq) + H2(g)

A: Oxidation: It involves increases in the oxidation number. Reduction: It involves the decrease in the…

Q: Draw the major product of this reaction. Ignore inorganic byproducts. N

A: Alkyl Cyanide react with grignard reagents followed by hydrolysis gives ketone

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.