GMontenaro M5 Lab 1 Dehydration of a Hydrate 2022

please answer  7 ，thanks！！

> 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

Co 5 .. Aktiv Chemistry Welcome to MyTCC X b Home | bartleby 403 Forbidden: Ac... 1 + Complete the balanced molecular chemical equation for the reaction below. If no reaction occurs, write NR after the reaction arrow. Be sure to include the proper phases for all species within the reaction. CoCl₂(aq) + K₂S(aq) ( 2 □ CI Reset Cu F5 000 3- T 3 F6 4 0²-0 X QYour Sets | Quizlet P Question 46 of 50 03 04 05 06 07 08 C F7 5 6 7 8 9 Co - 2+ 3+ 4 4+ ASUS FB K NR 8 X ** H₂O F9 9 F10 Ac (1) (g) (aq) S 0 Sign In or Sign Up | Chegg.cc X Do Delete 8 O Prt. Sc + W 4

Using the image attached please write the procedure in your own words Please write it in a paragraph if possible please answer fast it's important

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

6. A volatilization gravimetry experiment was conducted on an unknown organic liquid (presumed to only contain carbon, hydrogen, and oxygen). The liquid was massed (data in the first column below) and then combusted in an excess of oxygen. The exhaust gas was passed through a trap containing drierite and then through a trap containing ascarite. The starting and ending masses of the drierite and ascarite were used to obtain the data in the second two columns below. Mass Unknown 12.4370 12.5590 12.2230 Mass CO2 17.0822 17.2497 16.7882 Mass H₂O 13.9849 14.1221 13.7443 A.) Calculate the mass percent of carbon, hydrogen, and oxygen in the unknown liquid. There are no outliers, so you can average the data before processing, if you wish. B.) Calculate the empirical formula of the unknown compound.

You carry out an experiment on the physical properties of 3 organic compounds and observe the following data: Substance Solubility in Water medium Compound A low Compound B high Compound C You know that the 3 organic compounds are an alkene, ketone and alcohol of equal hydrocarbon length. Match the compounds above to their specific organic compound type based upon their solubility. And give a structural reason for the solubility observations that are observed. (I:3) Substance Identity Reason Compound A Compound B Compound C

* 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

Two mixtures of methanol (CH3OH) and water (H2O) are contained in separate flasks. In the first mixture, methanol has a molar fraction of 40%, and in the second a molar fraction of 70%. Flask 1 and Flask 2 are combined in a mixer in a ratio of 2:1 (molar). a.Draw a diagram of the process and label the streams and components. b.ldentify all the unknown masses and mass fractions of the system. c.Calculate the composition (in mass) of Flask 1 and Flask 2. d.Calculate the composition (in mass) of the product out of the mixer. Please give an explanation for the step you take

V/hat is the partial pressure of carbon dioxide, if atmospheric pressure is 675torr and the vapor pressure for water is 393torr? Your Answer: Answer units 00322 moles of carbon dioxide. What is e? 区引射的 Why must the reaction chamber (test tube) for the Alka-Seltzer be dry before adding the Alka-Seltzer? Check ALL that apply. Water will heat up the other reactants MacBook Air DII DD 80 888 F11 F9 F10 F6 F7 F5 F2 F3 F4 $ % & 2 3 4 6. 7 9 W E R Y G H J K S D C V .. .- V * CO 170 ERIC GAGNE P - 38 Ht: 62 Wt: 195 Bats: Right Throws: Right Bom: 1/7/76, Montreal, Quebed odgers Acquired: Free Agent, 1995 H BB S0 BA 2001 Dodeers 2002 Dodgers 2003 Dodgers MLB TOTAL 8 .50 212 107 447.2 360

The Common App... An experiment was conducted using KNO3. The table below shows the data obtained after dissolving different masses of KNO3 in 10 ml of deionized water and then cooling to determine the temperature at which the different concentration of salts begin to recrystallize Concentration of KNO3 Saturation temperature(°C) 2g/10 ml 52.5 4g/10 ml 54.7 6g/10 ml 66.7 8g/10 ml 80.2 If a student dissolve 24g of KNO3 in 120 ml of deionized, at what temperature do you expect to see recrystallization O 52.5 degree celsius O 66.7 degree celsius 0:54.7degrce celsius O100.2 degree celsius

please help me fill in the blanks correctly, the last answer was wrong

11. The following reaction between potassium, permanganate, and manganese sulfate in water produces maga- nese dioxide, potassium sulfate, and sulfuric acid. (₁) KMnO4 + (1₂)MnSO4 + (x3) H₂O → (14) MnO₂ + (15) K₂SO4 + (6) H₂SO4 Balance the equation using the vector approach and write the solution in vector parametric form.

Gypsum (CaSO4) is a common percipitant in water desalination. CaSO4 <=> Ca2+ + SO42-     where Ksp=10-4.6. Assuming that:   [Ca2+]=2x10-2 M; [SO42-]=2x10-3M: a) Find Qsp or IAP for the given water b) Find the solubility index (SI) and determine whether CaSO4 is under, super, or at saturation in water. Feel free to make any assumptions you wish, as long as they're stated.

. These resins are organic polymeric networks that contain functional groups that are permanently attached to the resin. One such functional group is sulfonic acid, -SO3H. When placed in water, the resin (being a large organic molecule) will not dissolve. However, the ionic functional groups become hydrated and the resin will swell as it takes up waters of hydration. The resin may then be thought of as a solid solution mixture with the functional groups being "dissolved" but the polymer remaining as a solid. The hydronium ion (H3O+) associated with acidic functional groups like sulfonic acid will dissociate just as it would if the acid were free of the resin. If other cations such as Cu2+ or Na+ are added to the resin, an ion-exchange reaction can occur:  . Note that one H+ is released for each positive charge bound to the resin.  Since the resin exchanges a hydrogen ion for a sodium ion in this reaction, sulfonic acid resins are called cation-exchange resins. Equilibrium constants may…