GMontenaro M5 Lab 1 Dehydration of a Hydrate 2022

Calculate the - total number of moles of oxalate ions (sources are oxalic acid solutions and potassium oxalate monohydrate is 0.0186 moles) - total number of moles of Fe3+ ions (source is ferrous ammonium sulfate hexahydrate, FeSO4(NH4)2SO4.6H2O)

is water a good solvent for recrystallization for acetanilide based on the image?

> EL session.masteringchemistry.com MasteringChemistry ROSTER-2019-SPRI-PULLM-CHEM-101 blackboard wsu Google Search MasteringChemistry: HW 8 KHW 8 Applications for Dilution Calculations K8 of8 Dilution as a procedure in analysis We sometimes purposely dilute solutions if the analyte concentrations wavelengths in the visible (and sometimes uitraviolet) range. Based on the dissolved solute's properties, we can quantify that solute's concentration are too high to permit an accurate measurement. For example, a spectrophotometer can measure the amount of light that passes through a sample solution for If the solute's concentration is too high, a relatively small amount of incident light having the wavelength that corresponds to the solute's absorption behavior will less light is absorbed, and the detector in the spectrophotometer can generate more reliable data. reach the dete ctor, which results in an inaccurate measurement (consider the result if you blocked the light with an opaque…

18. Jet is an undergraduate chemistry student, he’s out in the laboratory trying to determine the volatile organic compounds as well as overall protein content of the leaf and stem of a malunggay (Moringa oleifera). He subjected the leaf and stem in a separate digestion reaction (treatment of sulfuric acid), afterwards he subjected the products to high temperature induction to get a dry ash like substance. Which type/s of chemical analysis did Jet employ to reach his objective?I. Qualitative AnalysisII. Quantitative Analysis III. Instrumental Chemical AnalysisIV. Wet Chemical AnalysisA. II & IV onlyB. I & IV onlyC. I, II & IV onlyD. I, II, III, IV

kindly help me with this problem thank you  Subject: PHYSICAL CHEMISTRY INSTRUCTIONS: solve as neatly as possible and show complete solution. Round your final answer to four decimal places and box  highlight all final answers. all values must include proper units with proper conversion if needed in your solution. kindly follow this format Given Required Solution thank you so much!

An open tubular column with a diameter of 215 um and a stationary phase thickness on the inner wall of 0.51 um passes unretained solute through in 79 s. A particular solute has a retetion time of 467 s. What is the distribution constant for this solute? Kp = What fraction of time does this solute spend in the stationary phase? ts !! ttotal

a. Colloidal particles typically have a negative surface charge that attracts oppositely charged positive ions in the surrounding bulk solution. These so-called _______-ions are held at the particle surface through electrostatic and van der Waals forces of attraction strongly enough to overcome thermal agitation. b. Turbine and propeller type mechanical mixers used for rapid mixing of reagent chemicals have either ------------- flow impellers with flat or curved blades located parallel to the axis of the drive shaft, or --------------------- flow impellers with blades making an angle of less than 90o with the drive shaf

How to make a discussion and conclusion using these data?

) - O + 88 www-awu.aleks.com Dashboard Rhetorical Analysis Essay Assignment WPAL 101_ 229 _Spring 2022 _ Smith -... ALEKS - Anniston Stovall - Learn Answered: Sodium hydrogen carbonate (.. O CHEMICAL REACTIONS Anniston V Solving for a reactant in solution 1/5 One way the U.S. Environmental Protection Agency (EPA) tests for chloride contaminants in water is by titrating a sample of silver nitrate solution. Any chloride anions in solution will combine with the silver cations to produce bright white silver chloride precipitate. Suppose an EPA chemist tests a 200. mL sample of groundwater known to be contaminated with iron(II) chloride, which would react with silver nitrate solution like this: FeCl,(aq) + 2 AgNO3(aq) → 2 AgCl(5) + Fe(NO3),(aq) 2 The chemist adds 11.0 mM silver nitrate solution to the sample until silver chloride stops forming. She then washes, dries, and weighs the precipitate. She finds she has collected 8.9 mg of silver chloride. ol. Calculate the concentration of…

Chrome File Edit View History Bookmarks People Tab Window Help 99% 1 Fri 2:43 PM 1 Q OChemistry-S2- MI, T2- Activ x A lincolnlearningsolutions.Ims.lincolnlearningsolutions.org/student/158064923/activity/71945701 FF14945E-E5A8-AA5C-E4B3-DE63-DA2. Paused Update ABP CSF # Apps YouTube G Google @ school wR Word Reference 6 3 X school myflixer 国Reading Ideal Gas Law - Assess It Chemistry-S2-MI, T2/Gases/Lesson 146 -147 Tina Etemi 回 04 @ All changes sav 3. If you have 3 moles of a gas at a pressure of 2.5 atmospheres and a volume of 8 liters, what is the temperature? Pay attention to the unit of pressure used. O 0.81 K O 25 K O 81.27 K O 57.86 K

Find the concentration of the solution

02:21 4G File Details 4CH003/UM1: Fundamentals of... Place a thermometer into the mixture and cool the flask in a water bath until the temperature is below 200C. Remove the flask from the water bath and carefully add cyclohexanol (10ml, 9.6g) to the acid mixture. Cyclohexanol is only slightly soluble in water so you should observe two immiscible layers at this point. Dissolve sodium dichromate dihydrate (10.5g) in water (5ml) in a 25ml conical flask and, using a dropping pipette, add this solution carefully drop by drop to the cyclohexanol/sulphuric acid mixture over about 30-40minutes. Swirl the flask vigorously during the addition process and maintain the temperature of the mixture in the round bottomed flask between 25-35°C during the addition by immersion of the flask in the cold water bath. If the dichromate solution is not added slowly, a rapid rise in temperature will occur and the reaction will become violent. 3 When all the dichromate solution has been carefully added rinse…

Note:- • Do not provide handwritten solution. Maintain accuracy and quality in your answer. Take care of plagiarism. • Answer completely. • You will get up vote for sure.

* Chrome File Edit View History Bookmarks People Tab Window Help A1 07 99% 1 Fri 2:44 PM a Chemistry - S2 - MI, T2 - Activ x lincolnlearningsolutions.Ims.lincolnlearningsolutions.org/student/158064923/activity/71945701_FF14945E-E5A8-AA5C-E4B3-DE63-DA2... ☆O Updat ABP C5F Paused E Apps O YouTube G Google @ school wR Word Reference 6 X school myflixer EReadin Ideal Gas Law-Assess It Chemistry-S2-MI, T2/Gases//Lesson 146-147 Tina Etemi 回 O 4 All changes sava 5. A balloon can hold 10 liters of a gas. If you blow up this balloon with 2 moles of oxygen gas at a pressure of 0.76 atmospheres, what is the temperature of the balloon? Pay attention t the unit of pressure used. O 45.7 K O 0.457 K O 4.63 K O 46.3 K PREVIOUS 5 of 5 SAVE & EXIT SUBMIT ALL ANSWERS

The following data were obtained when a hydrate was heated 31.781 g crucible+ sample 30.501 g empty crucible 31.100 g crucible + sample after heating 1. Calculate the % water in the hydrate. SHOW WORK 2. Decide whether the sample was BaCl2 2H20 or MgCl2 6H2O by calculating the theoretical % water in each compound and comparing to your answer in #1. SHOW WORK 95.218 g/mole Formula weights: MgCl2 208.25 g/mole ВаCl> НО C= 18.0153 g/mole 89 II 1

Assume the data below was collected for two different sample solutions using the same experimental procedure you carried out. Based on the two lines shown below, which solution (orange data points or blue data points) corresponds to the sample with the higher molar absorptivity? 0.9 y4.771 - 0.0728 0.7 0.6 04 0.3 02 y1414 - 0.0546 R0.99642 0.1 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 02 0.1 [Concentration, M] orange data points (lower line) O blue data points (upper line) Absorbance

Nano chemistry questions! True or false? 1. Bulk materials have almost constant properties regardless of their size and shape. 2. An important parameter that determines the functioning of nano materials is surface area (SA) to volume (v) ratio 3. Top-down approach are required for synthesis of nanomaterials 4. UV-visible spectroscopy can be used as a simple and reliable method for monitoring the stability of nano particles solutions.