If the ?b of a weak base is 3.1×10−6, what is the pH of a 0.18 M solution of this base? use ice method

Q: If a bag of fertilizer were labeled as containing 35% K2O,      b. Assume the bag is labeled as…

A: a) Simply divide the K2O  % by 1.21 to get the percentage of K. Multiply by 1.21 to convert K to…

Q: Which of the following is a physical change? Choose all that apply. O a. rusting of a metal can Ob.…

A: Choose which are physical change?

Q: Calculate the molar solubility of CdCO3 (Ksp = 6.2 x 10-12) in 0.0063 M Na2CO3. Format for…

A: Ksp = 6.2 x 10-12 Molarity of Na2CO3 = 0.0063 M This Na2CO3 contributes in total concentration of…

Q: When 6.29 g of a certain nonvolatile solute is dissolved in 500 g of water, the freezing point of…

A:

Q: You dissolve 8.50 grams of NaCL to create 1350 mL solution. What is the molarity of the solution?…

A: We need to calculate molarity of NaCl

Q: Please give the reactions of the following of its esterification reaction: 1. benzoic acid 2.…

A: In organic chemistry esterification is chemical reaction in which two chemical ( generally one is…

Q: If CF2CI2 exists in the stratosphere, which radicals will be formed when it is irradiated? What…

A: Because carbon chlorine bond energy is smaller than carbon fluorine bond energy so it is easier to…

Q: Q9. When the following equation is balanced in acidic solution, the coefficients for H,0, 50,' and…

A:

Q: Calculate the molality of 72.0 grams of ethylene glycol C2H6O2 in 304.6 g of water

A:

Q: Calculate the pH for the titration of 50 mL of 0.1 M HCl with 0.1 M NaOH at 25 °C at the following…

A: pH is the negative logarithm of the hydrogen ion concentration. It is a measure of acidity or…

Q: Draw the products of the complete oxidation of the following fatty acid: i. OH

A: Draw the products of the complete oxidation of the following fatty acid:

Q: The halogen radical produces from question 3 reacts with thermally with ozone (O3) in an SH2…

A: Free radical reactions are those reactions where substitution is caused by a free radical. The…

Q: A certain liquid (A) has a normal boiling point of 127.80°C and a boiling point elevation constant…

A:

Q: Q5. Which one of the following is not a redox reaction? A. 2H,0ta > 2H,0 + Ozi B. N + 3H 2NH C.…

A:

Q: B. At 40 °C, water has a vapor pressure of 55.3 torr. What is the vapor pressure of the solution…

A: Molality of solution = 2.319 molal Mole fraction of EZ = 0.04011

Q: Calculate the molar concentration for 20 g of cane sugar dissolved in 125 g of water, given that the…

A:

Q: A chemical engineer is studying the two reactions shown in the table below. In each case, he fills a…

A:

Q: प्खर जो०त ककवे टागल्वेर क्रेमए pocodurd with mechanis mA 2504 major 2. - १entamos fhरSoप

A:

Q: (b) Tungsten has a BCC structure with a lattice constant of 0.317 nm. Evaluate and sketch the planar…

A: Each crystal structure is made up of small units, these units repeat itself to form the complete…

Q: व- मोर कपलप्पछ वक्तर्व पक्चनेट एon हुगफव ठिठर एवटक fottowwing Cog-- १०५ बकत स्टत्व) Nog

A:

Q: 3. What is the pH of a buffer composed of 0.35 M H2PO, (aq) and 0.65 M HPO,?- (aq)? (K, of H2PO, is…

A: Given ,  Concentration of acid [H2PO4-] = 0.35M  Concentration of salt [HPO4-2] = 0.65M…

Q: An gas whose pressure, volume and temperature are 275 KN/m³ 0.09 m³ and 365 °F, respectively, has…

A: Solution - According to the question - Given data - P1 = 275 KN/m3 V1 = 0.09m3 T1 = 365 F R=…

Q: Calculate the pH and ionization percentage of 0.2 M ammonium hydroxide solution if PKa = 4.7…

A: PH = 9 and % = 0.005 %  But this option is not given

Q: To a buffer containing 0.150 mol NH3 and 0.250 mol NH.* 0.050 mol of HCl (aq) is added. Calculate…

A: In this question, we will determine the pH of the Basic Buffer Solution.  You can see the details…

Q: Decide whether each proposed multiplication or division of measurements is pc proposed…

A:

Q: Complete precipitation of group III cations is assured by keeping the solution O slightly alkaline…

A: Analytical chemistry is branch of chemistry which involves separation, identifications and…

Q: HOME EXERCISE 1. If a 0.010 O M solution exhibits 45.0% T at some wavelength, what will be the…

A:

Q: of increasing atomic fadius A. Li < Na < K< Rb B. Na < K < Rb < Li C. Li < Na < Rb < K D. Li < K< Na…

A: 15. In groups from top to bottom,the atomic radius increases . Therefore, option (a) 16. In the…

Q: The acids correctly ranked according to decreasing strength is: Select one: a. HCLO > HCLO, > HCLO,…

A: The strength of the acid can be determined by the stability of the conjugate base after the donation…

Q: 22. Palladium (Pd) crystallizes in a face-centered cubic lattice with an edge length of 388.8 pm.…

A:

Q: Will a precipitate form if a mixture contains (Ag+) = 1.2 x 10-4 M and (C2O4-2) = 4.7 x 10-3 M?…

A:

Q: Q16. Which one of the following is an incorrect orbital notation? B. 2d C. 3s D. 2p A 4f

A: 2d orbital can’t exist in an atom. We can provide an explanation for it from its subsidiary quantum…

Q: 2. If 11.2 g of naphthalene, C1oHs (molar mass: 128 g/mol), is dissolved in 105.4 g of chloroform,…

A:

Q: Rank the following aqueous solutions from the highest (1) to lowest osmotic pressure (4). 0.01 M…

A:

Q: Which one of the following equilibrium reactions is not affected by a change in pressure? O H2(g) +…

A: By increasing the pressure, equillibrium shift in that direction which has less number of moles of…

Q: 3. In the reaction 2 A+ 28 C+2 D, the rate of disappearance of A is 2.2 x 10 * M/s a. What is the…

A: 2A + 2B ....&gt; C + 2D Given that: Rate of disappearance of A = 2.2×10-4M/s = -d[A]/dt = 2.2×10-4…

Q: (Q86) What is the value (in V) of the standard cell potential (E°CELL) for the following reaction…

A: Here we are required to find the standard cell potential of the given electrochemical reaction

Q: Consider the following cell: Pt|H2(g,0.25atm)|NaOH(aq, 0.10M)||Hg2C2(aq,0.010M)|Hg|Pt Using NaNO3 as…

A: Solutions                          Draw the electrochemical cell and indicate the following

Q: The sulfur from 4.00g steel is evolved as dihydrogen sulfide gas and titrated with 1.60 mL of…

A:

Q: DIBAH toluene H.O 1. H,O* HGSO 2. он HO- 3. CH,CHMgBr 4.

A: 1)      The ethyl phenyl acetet reacting with the Di-isobutyl Aluminum Hydride (DIBAL) and…

Q: in a 1.00-cm cell. What is the molar absorptivity at 266 nm? 3.55 x 104 M-1-cm-1 6.54x 104 M-1.cm-1…

A: Given that:  %Transmittance = 15.1% Conc.(C) = 2.31×10-5 M  Length(l) = 1.00cm

Q: 1. (a) There are two main types of adrenergic receptors: the a- and B-adrenoceptors. Noradrenaline…

A: (a) The proteins or enzymes bind to its ligands with high specificity. If we observe the attached…

Q: What is the color of Methyl Orange in Caustic Potash?  a. Red b. Deep Blue c. Faint pink d. Faint…

A: What is the color of Methyl Orange in Caustic Potash?

Q: 1) H,Cro, 2) PČI, 3) (CH,CH,),NH (excess) OH Answer:

A: HCrO4 is an oxidising agent it oxidises alcohol in to corresponding carboxylic acid.

Q: Is the statement true of false? Support the answer a. For a fixed amount of a perfect gas,  U and H…

A: According to the first law of thermodynamics, the enthalpy change of a system is related to the…

Q: disregard the answers already given. Please show your work in the same format though. THANKS. It has…

A:

Q: In a galvanic cell, the cathode is the positive electrode and the anode is the negative electrode,…

A: Anode is negative in electrochemical cell because it has a negative potential with respect to the…

Q: lowing molecules classify them as aromatic, antiaromatic, or nonaromatic. II romatic; I| =…

A: Organic compounds can be defined as the compounds that contain carbon and hydrogen atom in a…

Q: a] An analyst would like to analyze the concentration of Mg2+ in a solution. He needs a calibration…

A: A question based on absorption that is to be accomplished.

Q: Two milliliters of 0.025molars potassium iodate solution was used to standardized the sodium…

A:

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.