12. TUI a Chemical reaction, the ráté constant at 42.0 °C is 0.00395 s while the rate constant at 67.4 °C is 0.0133 sl. Calculate the value of the energy of activation, in kilojoules. a. 42.65 b. 1.13 c. 0.421 d. 18.5 e. 0.617

Q: Write a balanced chemical equation based on the following description: solid lead(IV) chlorite…

A: since you have posted multiple questions in a single session, we are entitiled to answer first…

Q: Table 2. Soil moisture content data Sample Moisture state 1 Field capacity (2 days after rain)…

A: Answer-1When a moist substance is heated, it loses the water present in it and becomes dry and mass…

Q: use ion exchange method in analytical separation to separate mercury and nickel from polluted water…

A: Basically the river bodies are polluted by the heavy metals like Cadmium,Mercury,nickel. Mainly…

Q: The instructor reveals that the weak acid is hypochlorous acid, HOCl. The known Ka for HOCl is…

A:

Q: Which of the labeled points in the graph below represents the equivalence point? E 14.00 10:00 A B D…

A: At equivalence, the only species present in the solution are neutral ions and water.The pH at the…

Q: foum 3. 100 llereahior bur? 3. 100 2. 1:00 2. 102 .00 opuenlion#14 .20 0. 7:0 200 15) 17.1 キ

A: Given reaction is  2 Li(s) + O2(g) -----> Li2O(s)  Given experimental data is  Trial [Li] (M)…

Q: Calculate the molecular mass of isopropanol (C3H$O).

A: The sum of the atomic masses of all atoms in a molecule

Q: Type your answer to the following: Consider the steps the student took in the following scenario.…

A: A student forgot to weigh the filter paper prior to filtering the salt from the sand. To make up for…

Q: This question has multiple parts. Work all the parts to get the most points. For the reaction below:…

A: Cis-cyclohexan-1,2-diol reacts with acetone to form cyclic ketal whereas trans-cyclohexan-1,2-diol…

Q: A student is given five metals, labelled A, B, C, D, and E. The student is also given 1.0 mol/L…

A: The solution is as follows:

Q: It is a type of mixture with particles evenly scattered in a dispersed medium without settling down

A: Mixture is the  combination of  two substance.  There are  two types- 1) Homogeneous  mixture.  2)…

Q: LOH1 Acid/Base 3.45 x 105 3.64 x 1012 1.24 x 10 2.57 x 10°

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: Determine the number of atoms in 39.0 grams of sodium, Na. (The mass of one mole of sodium is 22.99…

A: Avogadro's  number gives the number of atoms, molecules or ions in one mole of the substance and it…

Q: T Text O Highlight + Insert Comment Prompt Reactants Products Water is split by strong electrical…

A:

Q: Construct a simulated ¹H NMR spectrum for 1,2-dichloroethane. Drag and drop the appropriate…

A: We have find out the answer.

Q: 4. Steam activation is carried out using steam at temperatures of between - 800°C and 1000°C. At…

A: In this question, we have to write True or false regarding the given statement.

Q: What is the importance of calibrating analytical balances?

A: Calibration of analytical balance is important.

Q: Use the exponent (EE) functionality on your calculator to do these calculations (a & c should be…

A: Significant figures of the answer will be two significant figures as the questions have .

Q: -3 -2 -1 0 +1 +2 +3 +4 +5 +6 +7 구모 99 5NO 2 + 6H+ + 2MnO4 999 오,99 5NO3 + 2Mn+2 + 3H2O Reset

A: This question belong to periodic table and Redox reactions.

Q: Which particles will react faster? a) those with 100 nanometers or 1000 nanometer diameter? b)…

A: The objective of the question is identify in which particles will react faster.

Q: Ammonium dichromate is sometimes known as Vesuvian Fire, because of its use in demonstrations of…

A:

Q: Identify A,B,C&D NH2 KI(aq) A NANO,HC1, H,O/H* B 0-5°C HCI Cu,Cl, D warm

A:

Q: We leached 200 g of our soil with 500 mL of NH4CI. The collected solution contained: 320 mg L-1 Ca2+…

A:

Q: 1. The crucible is not fired, as the procedure suggests. The mass of the dirty crucible is recorded.…

A: For proper experimental results, we have to carry out all the experiments as given in the procedure.…

Q: Part A [H,O']-1.8x10 M Express your answer to two decimal places. Enter your answers numerically…

A: pH = -log[H3O+] pH + pOH = 14

Q: BA =0 H₂ Pd/C 1. NaBH4 2. H₂O+

A:

Q: Paragraph 11 1 13 14 I 15 16 3 4 5. 6. I8 1 9.1 10I General Formula Structure Type of organic…

A:

Q: The two compounds in A ar The two compounds in Bar the same molecule skeletal isomers functional…

A:

Q: For the data below, Write the linear equation of the line (use 5 Decimal places and don't add…

A:

Q: This is an experimental set-up for the purification of water experiment. State uses of each labeled…

A: We are given the complete setup of a distillation apparatus for the purification with labelling of…

Q: Final Burette Reading Initial Burette Reading Mass of flask + water (after adding aliquot) Mass of…

A: Density of a substance can be defined as the mass per unit volume. It is a property of substance…

Q: Balancing Act! Balance this equation! (Equation number 1 of 10) СаСОз + 2HСІ — CaCl2 + H20 + CO2 1 v…

A:

Q: 10. Calculate the volume of water in your melted ice and isopropanol solution.

A: We have been asked to solve question no. #10 Volume of isopropanol = 50ml Volume after ice melted =…

Q: la 2-Fe/HCI 1- 2- / AICI3 Br Br COOH

A: In three of the reactions starting compound is benzene. In first reaction,  two times bromination…

Q: 2. Geochemists are concerned with the chemistry of natural waters because it affects drinking water…

A: Since you have provided multiple questions with sub-parts, we will solve the first question with…

Q: the limiting reagent and its amount in the active ingredient Potassium Iodide

A: The chemical reactions occur according to the stoichiometry of the various compounds present in the…

Q: Volumetric Target concentration Mass of mixture Amount of ammonia flask added required 0.43 gl)…

A:

Q: 1a. Throughout the experiment, what are some possible sources of error that could have led to…

A: The objective of this question is to show the experiment involving the separation of table salt and…

Q: Complete the table below. Be sure each of your answer entries has the correct number of significant…

A:

Q: 3. Standard white vinegar you can buy in the grocery store is 5% concentration. That means 5% of the…

A:

Q: Write a step-by-step procedure for this serial dilution. • The stock concentration of the blue dye…

A: In this problem we need to prepare different concentrated solution from a particular solution given.…

Q: In the copper experiment, a copper wire For the toolbar, press ALT+F10 (PC) or

A: Copper is dissolved in nitric acid

Q: Determine the H*, OH-, and pH of a solution with a pOH of 13.61 at 25 °C. [H*] = %3D [OH-] =0.245…

A: Since, pH = -log[H3O+]  ⇒[H3O+]=110pH  pOH = -log[OH-]  ⇒[OH-]=110pOH

Q: Use the data below to determine the mass ratio of iron to oxygen for compound 2. Compound 1 2 Mass…

A: We have given,  For compound 2 , Mass of iron ,Fe=20.98g  Mass of oxygen, O = 9.02g

Q: Your standard curve will contain the log of concentration in ng/mL on the x axis, and absorbance on…

A: It is given that the graph is between log of concentration (in ng/mL) on x-axis and absorbance on…

Q: Volume of Prepared Julce (ml) Servings of Prepared Julce Mass of Total Cost Packaging (9) of Julce…

A: We are given the mass of packaging in the 2nd column, number of servings in the 4th column and total…

Q: In an air pollution analysis, 3 L of polluted air is passed through 50 ml of 0,0116 M Ba (OH) 2…

A: Given data: Volume of air (CO2) = 3 L Concentration of Ba(OH)2 solution = 0.0116 M Volume of Ba(OH)2…

Q: Calculate how much of each solution you need to take to prepare 1 L of buffer solution with a pH of…

A: Sodium carbonate and HCl react with each other as: Na2CO3+2HCl→2NaCl+H2CO3 ----(1)