Which compound in cach of the pairs below would you expect to have a greater fluorescence quantum yield? Explain. *(a) OH COH phenolphthalein

Q: Answer the questions using one of the words or phrases from the following list. We suggest that you…

A: Accuracy -In a set of data or measurements accuracy is measurement of how close the data is from its…

Q: What are the requirements of a primary standard?

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Q: how to do a documentation in chemistry lab

A: We need to explain briefly about documentation in chemistry lab. You can evaluate your actions using…

Q: what are the adavantages of the internal standard method compare to calibration curve method

A: In internal standard method, an internal standard filled in the same matrix as the analyte filled.…

Q: How many air molecules are in a 14.0 x 12.0 x 10.0 ft room (28.2 L =1 ft)? Assume atmospheric…

A: Pressure, P = 1 atm Gas constant, R = 0.08206 atm L K-1 mol-1 Temperature, T = 20°C = (20 + 273.15…

Q: 13. A sample of 0.050 mol of NaOH is added to a solution containing 0.100 mol of acetic acid…

A: Two types of buffer solution are generally used ----- 1. Acidic buffer (made of weak acid and its…

Q: Definitely present Definitely absent Possibly present Answer Bank A+ Fe2+ Zn+ Ва Hg Bi Ag+ Lit Sn+…

A: The metal cations are classified into their respective categories (and are listed in the imge below)…

Q: The following item is used in chemistry laboratory. It is called as a glass rod with bulb.· Select…

A: The question is based on the concept of experimental Chemistry. we have to identify the apparatus…

Q: The higher the slope of a calibration curve the better we can detect small differences in…

A: The concept behind the answer lies in the relationship between the slope of a calibration curve and…

Q: This 'H spectrum exhibits resonances at the following chemical shifts, and with these integrated…

A: On the basis of given spectra structure of compound is determined as

Q: + 'CI

A:

Q: Check photo for question

A: The details solution for this reaction is provided below in attach image.

Q: hed in a sealed container. Which of the following changes would increase the partial pressure of SO…

A: Given eqm rxn is SO2Cl2 (g) <=>  SO2 (g) + Cl2 (g)  Given: ∆ H = +67 KJ/mol where positive…

Q: For the titration of 25.00 mL of 0.1000M HCI with 0,1000 M NaOH, calculate the pH of the reaction…

A: "Since you have asked multiple parts of a same question, we will answer only first 3 parts for you.…

Q: 1. Fit a straight line to the following data points using excel program to obtain the concentration…

A: Beer's Lambert's law :

Q: If the value of △G changes with temperature, this would mean that: a) △H=0 b) △H has a positive or…

A: ∆G = ∆H -T∆S

Q: Volumetric glassware must be dry prior to usage. It can be placed in laboratory oven to be dried…

A: It is important that the volumetric glassware be completely clean before you use it For perfect…

Q: (0) 1.03 2. DMS

A: Ozonolysis is a useful reaction for the oxidative cleavage of alkenes to carbonyl compounds.->…

Q: Your doctor gives you a prescription. The dosage for the prescription is 5 mL for every 3 pounds of…

A: Given: According to the doctor prescription 5 ml for every 3 pounds Child weight=84 pounds To find:…

Q: Ka value of Alluminium nitrate

A: AlNO33 is a salt of weak base and strong acid. It dissociates in solution as follows: Al(NO3)3…

Q: Explain the reason 4-point probe method is considered to be more accurate than 2-point probe method.

A: To find: The reason for 4-point probe method is considered to be more accurate than 2-point probe…

Q: Please correct answer and don't use hend raiting

A: Step 1: Step 2: Step 3: Step 4:

Q: Quèstion 16 State two characteristics of a primary standard.

A: In redox titration primary standard such as pure  iron, sodium oxalate is used .

Q: is the correct order to calibrate spectrophotometer? a)turn on bulb b) insert blank c) insert sample…

A: The objective of this question is to set the correct order to calibrate the spectrophotometer.

Q: What is pre-exponential factor?

A: Chemical kinetics, also known as reaction kinetics, is a branch of physical chemistry that studies…

Q: I 4. Determine the pH of a 0.095 mol/L HIO4 solution if the K₂ = 1.29 x 10-² (5 T) + H₂O(l) 10+ (aq)…

A: pH of an acid depends on the concentration of hydronium ion.pH = -log[H3O+ ]Given - concentration of…

Q: Question 4 B

A:

Q: Data Table Test mL of mL of pH tube HOAc NaOAc Trial Trial pH HOAC pH Average Millimoles Millimoles…

A: To calculate the average pH and average calculated pKa, we first need to determine the…

Q: hich protons are in the region from 7.0 – 8.0ppm and at 2.3ppm

A: The answer is as follows:

Q: For Reaction 1: Mg0(s) + 2HCI(aq) MgCl2(aq) + H20(1) 1. 1.1 HCI volume 50 mL (= 50 g) 1.2 t2 32.7 °C…

A:

Q: Perform the Q-test on the following percent KHP values: 35.87 % 36.40 % 37.04 % 39.98 % Select all…

A: Q test is used to identify outlier within the test data. (1) Arrange in increasing order of…

Q: A chemist mixes 42.5 g of benzene with 7.23 g of isopropenylbenzene and 19.7 g of 2-ethyltoluene.…

A:

Q: For the reaction A + B →→C+D, • Trial 1: [A] = 1.0 M, [B] = 2.0 M, rate = 0.0010 M/s 0.0040 M/s…

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Q: Calculate the standard deviation and % error using the following data table if the theoretical…

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Q: Largest radius

A: Given ions are : K+,Ca2+,P3-,S2-,Cl-

Q: Detector response is corrected to take in account dilution before being plotted on the y-axis. O…

A: True

Q: Using the thermodynamic information in the ALEKS Data tab, calculate the standard reaction free…

A:

Q: Lable as true/false, if false change underline statement

A:

Q: can you answer the other sub parts

A: To calculate the pH of the titration mixture after the addition of 33 mL and 44 mL of the titrant.…

Q: A laser pulse is 4.82 x 10-2 milliseconds. How many nanoseconds is this?

A: Answer: This question is based on unit conversion where we have to convert the value of time from…