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: I need help calculating and setting up questions 4 or 5. thank you for your help!
A: Since you have posted multiple questions, we are entitled to answer the first only.
Q: d. The property of a substance that is used to separate a mixture of liquids in a distillation is…
A: The reaction involved is: C2H5Br + NaOH → C2H5OH
Q: Write and balance the equation representing what happens when Mg(NO3)2(s), a strong electrolyte,…
A: When a strong electrolyte dissolved in water. It dissociates into its respective ions.
Q: 4. Compare the chemical formulas listed at the top of each drawing in Model 1 with the shapes in…
A: Given : model of different atom, molecules. To find :Chemical formulas of of the drawing models.…
Q: Part A 112.0 mL of glacial acetic acid (pure HC₂H₂O, K.-18x 10 ) is diuted to 1.75 Express your…
A: Volume of glacial acetic acid = 12.0 mL = 0.012 LDensity = 1.05 g/mLMass of acetic acid = volume ×…
Q: You determine the Mg concentration of a water sample using atomic absorption spectroscopy (AAS). The…
A: On dilution, the concentration of the solution decreases. The product of molarity and volume gives…
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: Station #9 = HC2H3O2 (aq) For this acid, what does the white bead represent?________ blue bead?…
A: Acetic acid (CH3COOH) is a weak acid, so it will dissociate little in water. The dissociation will…
Q: What is a possible testable question (in correct format) That Mrs love might ask for this Sanrio?
A: Given : A paragraph is given. To find : Possible question in proper format from the paragraph.…
Q: We started with 20 mL 1 M acetic acid ~ 0.020 L acetic acid in a flask. (Ka acetic acid =…
A: Millimoles of acetic acid taken=Molar concentration of acid×mL of acid=1 M×20 mL=20 mmol
Q: phs.blackboard.com/webapps/assessment/take/take.jsp?course_assessment_id%3D…
A: According to given Equation. colorimetry or colourimetry is a technique "used to determine the…
Q: Table 8.6 (report) Sample temperatre (C) Sample volume (mL) Sample temp in Kelvin (K) K' Value 1…
A: Hi there! The first part of this question is too complex to solve on this platform so we are…
Q: Table 1: Absorbance of X solution (575 nm) Concentration (mg/ml) Absorbance 0.025…
A: The relation between absorbance and concentration can be given as follows; A = e C l Where, A =…
Q: i need answers for 7 and 8 please. thank you
A: In the given question, the species which is a molecule but not a compound has to be selected. The…
Q: OH Br Br CH 2 CH2 C Hz CHo С. SHOW THE EXPANDED CONDENSED FORMULA:
A: Expanded formula: Expanded formula shows all the bonds that are connecting each atom in the…
Q: 1-25. The Reaumur temperature scale, while now obscure, was once in common use in some parts of the…
A: Given the temperature in Reaumur scale is - 20 or We have to convert - 20 or into degree…
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: 4. You are placing the following quantities of BSA (1 µg/µL) in wells A1-A8 for a total volume of…
A: A table of data with mass and volume of BSA. Total volume and corresponding Absorbance values.
Q: 1) Determine the moles of KMnO4 required for each trial. 41.43 mL 0.45 mL = 40.98 mL of KMnO4 moles…
A: Given that, Molarity of KMnO4 solution is 0.1 M. For trial 1: Initial burette reading = 0.45 mL…
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: slope (m): 0.02534 1/(µM) y-intercept (b): -0.0009147 Q5. If Ana determines the absorbance of…
A: According to the Beer-Lambert’s Law: where A is the Absorbance, b is the path length of the cuvette…
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: MIDTERM-EXAM (1) (Protected View) - Word A Dryan Zen References O Tell me what you want to do &…
A: The major functionality present in the given molecule is aldehyde along with hydroxy and alkyl…
Q: Can someone help me interpret this data to be put on my research paper? This is the absorbance…
A: Lambda max is define as a wavelength at which a compound show maximum absorbance and it is use to…
Q: Question 4 and 5 is not answered? It is only answered untill 3rd question, it is incomp
A: From the experimental data, moles of Cu, moles of Cl, and moles of H2O can be found out. Empirical…
Q: 7. (4.3 х 10^8) x (2.0 х10^6) 3
A: While solving such problems, multiplication occur with the first terms and powers are added. It…
Q: I нннн н | | | | | н-c-c=С-С-С-Н I | | н н Name Т. Name H-C-H c = c — с н / нннннн | | | | | |…
A:
Q: Dangerous Paint Stripper Jessica has a summer job working for the city parks program. She has been…
A: Firstly if we talk about the chemical which is being used in the cleaner i.e Ch2Cl2 Methylene…
Q: Can you please help me with 5
A: The question number 5 is (8.41 x 10-5) - (7.9 x 10-6) this can be solved by converting one number…
Q: Balancing Act! Balance this equation! (Equation number 1 of 10) СаСОз + 2HСІ — CaCl2 + H20 + CO2 1 v…
A:
Q: Procedure 3: Include Chemical Formula and Chemical Name in Each Box + Ag+ AgCl CI Silver(1) chloride…
A: Ionic compound: Ionic compound composed of cation which is positively charged (+charge) and an anion…
Q: Name Complete the chart below. For the names given draw a condensed or line structural formula Name…
A: 5) Name: 2ethoxy-3-methylnonane Structure: Family: Alkoxy 6) Name: Ortho-isopropylaniline…
Q: The spectroscopic data in the table is generated with five solutions of known concentration.…
A: According to Lambert-Beer's law, the absorbance of the solution is directly proportional to the path…
Q: AG and AG are equal when Q=
A: Free energy change: change in the free energy takes place while reactants converts to product where…
Q: 5.Consider the following reaction. 4 PH3(g) + 8 02(9g) → P4010(s) + 6 H20(g) If a container were to…
A: Limiting Reactant
Q: For a certain reaction AGºrxn = -16.2 kJ/mol. What is the equilibrium constant at 206°C? Remember to…
A: Answer:Entropy is a measure of system's disorderliness or randomness. In more microstates system can…
Q: Flame Emission Spectra Step 1: Record the color of each flame in the table below NaCl CaCl₂ NiCl₂…
A: Flame emission spectra is also called as atomic emission spectra. Lines produced by each element in…
Q: 4. 5. Ted is sneezing and have watery eyes. What should he do? Tom haven't excreted in the past few…
A: Please find the below attachment. Please rate helpful............. Thank you.
Q: Question 8 Propose a chemical structure for the name below. Make sure to clearly define the…
A: RULES for IUPAC nomenclature; In first step, we identify functional groups present. We make longest…
Q: 6. (1.33 x10^5) - (4.9 x 10^4) =
A: The values to be added or subtracted should have the same units or powers raise to base 10 value.…
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: 5. A family of compounds that often have a pleasant smell. The are commonly found in fruits. 26.…
A: 25) The compound is ESTERS(RCOOR) which provide pleasant smell to fruits.
Q: 2) N2= Ni(acac)2 C Ph JCS P1, 1984, 261
A: In the presence Ni(acac)2, diazomethyl ketone eliminates nitrogen gas to produce carbene which…
Q: Three students (Saerom, Hayoung, and Jiwon) are asked to determine the ppm Ca in a drinking water…
A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: 2. There is a need to make many 10mm holes in a rubber hose. It is not hard to punch or drill holes…
A:
Step by step
Solved in 2 steps with 1 images
- why cant i see the answer? My computer cant pan to view it entirely.HP TrueVision HD 4 Texas Workfor Mộc Homework × W. College Physic mical App AN Careers eagleonline.hccs.edu/courses/188795/assignments/3601808 valnabie diler reD 4 dl 10.1Tam Constants | Periodic Table Part O Complete the fourth row. Complete the following table by calculating the missing entries and indicating whether the solution is acidic or basic. Express your answer using two decimal places. Acidic or [H+] [OH-] pH pOH basic? 7.4x10-3 ΑΣφ 3.3x10-10 M pH 8.25 5.73 Is to fa ho II 10 insert11 of 11 I Review | Constants Periodic Table Suppose that you want to construct a line with slope m = 3 that passes through the point (2, 1). You would begin by setting up the equation y = 3x +b If you plug in the coordinates for any point on that line, the two sides of the equation will be equal. Once you've done this, you can solve for b. What is the value of b? Express your answer as an integer. > View Available Hint(s) 8:59 PM 41% 67°F x口ツ 8/31/2021
- For questions #14-16, you should do your work on a separate piece of paper and then upload it. You should use the GUESS Method of solving for each problem. Also, you have a choice. You can complete both #14 & #15 which are single step question or do the extension problem which is a 2 step problem instead of 14 & 15. You must complete #16. Equations Q = mcAT Q = ±mLf Q = ±mLv Values for Water Clice) = 2.06 J/g°C C(water) = 4.186 J/g°C C(steam) = 1.87 J/g°C Lf (water) = 333 J/g Lv (water) = 2,260 J/g %3D G- S- U- E- S- #14. Calculate the energy required to heat 12.5 g of water from a temperature of 42.2°C to 52.3°C. #15. How much thermal energy is needed in order to turn 15.7 grams of water into ice? Extension: We start with 23.2 grams of ice at 0°C and add heat to the ice. The ice completely melts and then is heated until it reaches 45.3°C. How much energy is added in total? #16. 12.0 g of a metal absorbs 317 J when it is heated from 38.2°C to 82.7°C. What is the specific heat of the…The feedback I got for these answers is that 5/6 are correct. Can you clarify on which one you might think is incorrect?When using a spectrophotometer to measure concentration of a solution, which of the following absorbance readings would indicate the highest concentration? 1. 0.56 2. 0.32 3. 1.34 4. 1.28
- When measuring the caffeine content in coffee, the molecules in the sample will absorb light. The absorbed light data provides information that can then be used in determining the concentration of caffeine. Both statements are correct. 1st statement is True. 2nd statement is False. 1st statement is False. 2nd statement is True. Both statements are False.Please answer questions 3 and 4 and show work please. Thank youOrder these chemical species by increasing pH of an 0.1 M aqueous solution of each. That is, imagine making an 0.1 M solution of each species. Select1 next to the species that makes the solution with the lowest pH. Select 2 next to the species that makes the solution with the next higher pH, and so on. Notice that some of the rankings have been filled in for you already. Also notice that water is on the list. For that particular case, just compare the pH of pure water to the pH of the other solutions. Note for advanced students: for all charged species, you may assume the necessary counterions act as neither acids nor bases. relative pH of 0.1 M aqueous solution species H20 4 H,PO4 HNO, (Choose one) NO2 7 OH (Choose one) HF (Choose one) ▼
- Refer to Figure 1 and answer the following questions: (i) (ii) Pictograms are symbols used in Global Harmonized System (GHS) to make hazard communication more effective. Use one key word to describe the meaning of Pictogram 1, 3, 4, 8 respectively. Provide an example of chemical compound for each. Assign relevant pictograms to the following activities. Activity 1: Heating sodium chloride with concentrated sulfuric acid Activity 2: Preparing aqueous sodium borohydride in a closed glass vessel Activity 3: Adding diethylene glycol to potassium permanganate solid 1 4 2 5 3 6 th 7 8 9 Figure 1. Pictograms under GHS system.Balance each of the following neutralization reactions. Part A HNO, (aq) + Sr(OH)2(s)→H20(1) + Sr(NOs)2(aq) Express your answer as a chemical equation. Identify all of the phases In your answer. ΑΣφ ? DA chemical reaction does not occur for this question. Submit Request Answer t Speec.pdfFor problems 1-4 you are not expected to come up with an exact structure. Use the provided data to identify functional groups the molecule contains and propose some possible structures that fit the data