What is the calculated pKa value to 4 decimal places

Q: (ОН)2 сan b

A: We have: Solution containing 0.28 M Pb2+ and 0.45 M Al3+. We need to determine the pH range.   The…

Q: Can someone help me with this laboratory questions. Thank you

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

Q: REPORT SHEETS DATA AND OBSERVATIONS 26.57 g 1. Mass of evaporating dish plus sample 2. Mass of…

A: In this question we have to calculate the experimental data of the salt and sand and percent…

Q: (7) includes all sources consulted for background reading (a) Abstract (b) Bibliography (c)…

A: The correct answer is reference.

Q: v is 9 L big, has a 37 °C, how many res.

A: Hello. Since more than one question has been asked, the first question shall only be answered in…

Q: pKa's: 2

A: Given as, pKa 1=2.19,pKa 2=6.94,pKa 3=11.51. As per rule, allowed to answer one question and post…

Q: How long will it take for 78% of a sample of 238U to be left intact?  The half-life for 238U is 1.0…

A: The nuclei which shows spontaneous decay with time are called as radioactive nuclei. Half-life of…

Q: The element mercury (Hg) is a heavy metal that is highly toxic in very small quantities. An ailing…

A: 1.60 ppm means There are 1.6 mg in 1 kg of moos.or we can say that 1mg of Hg is present in (1÷1.6)…

Q: A balance high readability is necessarily equated to high accuracy. Select one: a. True b. False

A: Given statement,  A balance high readability is necessarily equated to high accuracy.

Q: 3. An object has a mass of 2.62114 g. The object is weighed accurately on the three types of…

A: a) A centigram balance has two decimal place precision. Thus the weight of the object noted on…

Q: Do you guys think these ones are correct

A:

Q: 1. State the mathematical equation known as Beer's law. Define each symbol.

A:

Q: Please help me figure out how to put this in my calculator [0.8(1/12)]^2 The correct answer is…

A: The expression given is [0.8(1/12)]2.

Q: 2 Ag+ (aq) + fe(s) → Fe²+ (22) + 2 Agis) €₁ = ? 9 +2.04 V +1.24 V 6 c) +0-36V d) -0.36V el -1.24V

A: In an electrochemical cell, the electrode with higher standard reduction potential acts as a cathode…

Q: An electric current of 17.70 A flows for 583. milliseconds. Calculate the amount of electric charge…

A: The amount of electric charge transported is given below

Q: Which test is used for elemental analysis? Answer:

A: Elemental analysis  is the process  which is used to analyse the new substance or compounds

Q: VIE The equation 96 A True B False 250Cm-?+ Sr+4n is correctly completed as 250Cm-14Ce+38Sr+4!n. 96

A: Nuclear reaction are those in which both nuclear fusion and fission reaction takes place.

Q: но Ph

A: 1st Have to protect the carbonyl group

Q: Analytical balances are not sensitive to photons O air flow O vibrations *O warming up time O…

A:

Q: Taking logarithms and antilogarithms is necessary to solve many chemistry problems. For practice,…

A:

Q: Chem 6

A: Endothermic reaction are those in which energy of product is higher than energy of reactant it means…

Q: 0.13 absorbance/4713.6 L/mol = ? Answer In scientific notation please.

A:

Q: Find the term symbol for the ion Mn-25

A: Electronic configuration of Mn-25=[Ar]18 3d5 4s2. The outer electronic configuration is s2.

Q: Scenario In an investigation, lab groups combine two compounds, as shown below. Based on the data…

A: Given mass of magnesium is 5 gram and given mass of HCl is 15 gram . first we are going to calculate…

Q: Round 571901 to three (3) significant figures.

A: In order to round to 3 significant figures,we need to look at the fourth significant figure. if it…

Q: [Referen Use the References to access important va Vhich of the following statements are correct?…

A: 5 statements are given , we have to choose correct statements .

Q: खोक्कांकंर मीमट MAIS रOOMम ०f 7 जा्षुळ च्छाजीक प्मलैकव प्रेवा ललवडड नो 97.288 अके dnनवाकड उ.37 8 0+…

A:

Q: What is the pka of an acid with a Kg=4.5 x 10-6? Give your answer with two digits after the decimal…

A: To represent the strength of an acid, pKa value is used. The negative base-10 log (or logarithm) of…

Q: ww TYTT 140 d 120 100 (CDCL3) 60 40 PPM

A: Given C-13 data indicate 6 peaks, so there are 6 different types of carbon present. Assignment of…

Q: ELECTROCHE x - x2* + 2 y3+ + 3 e -

A: We have: Half cell reaction: X  --->  X2+  +  2e-               E0 = -2.32 V…

Q: Categorize each as a determinate or an indeterminate error and further classify determinate errors…

A: We have find out the types of errors. Note -as per our company guidelines we are supposed to answer…

Q: Balance

A:

Q: 1:47 PM ...14.1KB/s &a 87 PHYSICS CHEMISTRY BIOLOGY v English(En) 13 * Review Consider the given…

A:

Q: e balanced by putting the following coefficients

A: The given unbalanced chemical reaction is: Als+H2SO4aq→Al2SO43aq+H2g In a balanced chemical…

Q: what does the values in 1 and 2 indicates?

A: The given curve is,

Q: 234TH 226 8Ra + -> 90

A: we know , number of emitted alpha perticles=final mass -initial mass 4 number of emitted beta…

Q: 1) on + X → -> 3. i +

A: It is an example of  nuclear reaction n01  is neutron which has mass of 1 unit same as the mass of…

Q: what if it became 0.6 A what is the answer

A:

Q: the remaining blank answers are rejected

A:

Q: A compound contains only Mn and F. The ratio of Mn and F is 2.54 moles of F per 1 mole of Mn. If the…

A: The ratio of Mn and F in the compound is 1:2.54

Q: what is the procedure of millikan oil drop experiment?

A:

Q: energy (ir

A:

Q: pH - 8.80 Express your answer using two significant figures. Enter your answers numerically…

A:

Q: e half life(i

A:

Q: Prepare two graphs, %T vs. Concentration and Absorbance vs. Concentration, using the data for the…

A: According to Beer-Lambert law the amount of light absorbed or transmitted when passed through a…

Q: 7. Fill in the empty spaces with the correct answers.

A: MPT divided into 7 periods and 18 groups  1A and 2 A group elements are called S-block elements 3A…

Q: pls answer number 3

A: In following 3rd question Na2HPO4 and H2PO4 calculate the weight required to prepare 200ml of buffer…