annotated-P7%20Post-Lab%20Activity-1

Experiment 605_Hydrates_1_2_1 (1) (Protected View) - Word (Unlicensed Product) ces Mailings Review View Help Foxit PDF Tell me what you want to do contain viruses. Unless you need to edit, it's safer to stay in Protected View. Enable Editing ir Office product is inactive. To use for free, sign in and use the Web version. Post-lab Questions Activate Use free at Office.cc 1. Calculate the mass percent of water for the hydrate, LINO,-3H;O. 2. What will be the probable effect if you kept the crucible completely covered during the entire heating and cooling processes? Would your calculated percent water in the hydrate be high, low, or unaffected? Explain. 3. If 2.752 g sample of Ca(NO:); XH;O is heated to constant mass, the residue weighs 1.941 g. Determine the value of x and the formula of the hydrate.

+ terface/acellus_engine.htm?ClassID=1467683063 Use the data below to determine the mass ratio of iron to oxygen for compound 2. Compound 1 2 Et onal Academy of Science. All Rights Reserved. Mass Fe (grams) 15.55 20.98 [20:1 Enter the answer that belongs in the green box. Iron Ratio Cmpd 2 Mass O (grams) 4.45 9.02 Sh Enter

View History Bookmarks People Tab Window Help S, Amaya K - Outlo x B Chapter 5- CHEM-1110-941- x Question 20 - Chapter 5- Con x education.com/ext/map/index.html?_con%3con&external_browser%3D0&launchUrl=https%253A%252F%252Flms Saved 3 attempts left Check my work Enter your answer in the provided box. It takes 155 s for an unknown gas to effuse through a porous wall and 97 s for the same volume of N2 gas to effuse at the same temperature and pressure. What is the molar mass of the unknown gas? g/mol ... 115 MAR 1664 18 ottv A

hrome File Edit View History Bookmarks Profiles Tab Window Help Watch Gilmore Girls | Netflix ALEKS A ALEKS - Reyna Garc A www-awu.aleks.com/alekscgi/x/lsl.exe/1o_u-IgNslkr7j8P3jH-IVDWKW BBZZ16tTytly4Fcf Spotify Web Playe... M Common Ethical D.. O CHEMICAL REACTIONS Identifying the limiting reactant in a drawing of a mixture The drawing below shows a mixture of molecules: key carbon hydrogen nitrogen sulfur oxygen chlorine Suppose the following chemical reaction can take place in this mixture: CO(g)+2 H,(9) → CH,OH(9) Of which reactant are there the most initial moles? Enter its chemical formula: Of which reactant are there the least initial moles? Enter its chemical formula: Which reactant is the limiting reactant? Enter its chemical formula: Explanation Check FEB 13

M Apple Google Disney ESPN Yahoo! Biomedical Careers Program Apple iCloud Yahoo Images Bing Google Wikipedia COWLv2 |... b D2L ☆ & G For the reaction r r Submit Answer prod03-cnow-owl.cengagenow.com Fe(s) + 2HCI(aq)→→→FeCl₂(s) + H₂(g) AH° = -7.4 kJ and AS° = 107.9 J/K D2L D2L D2L Facebook Twitter LinkedIn Use the References to access important values if needed for this question. The Weather Channel Yelp TripAdvisor b D2L M G C The maximum amount of work that could be done when 2.08 moles of Fe(s) react at 286 K, 1 atm is Assume that AH° and ASº are independent of temperature. Retry Entire Group 4 more group attempts remaining kj. +88 M

Activity 3 Evidences of Chemical Change Objective: Identify signs that chemical changes are taking place. Write down the evidences which prove that the chemical change occurs in each process. You can use Google or YouTube to search for the possible results of the given chemical system. Chemical System 1. Decaying of food. Evidence of Chemical Change 2. A silver spoon tarnishes. 3. An iron nail rusts. 4. Cooking of adobo. 5. Lithium in cell phone battery 6. Coconut water turning sour. 7. Pineapple juice ferments. 8. Ripening of green mango. 9. Liquid milk is added to vinegar in a glass. 10.A firecracker explodes. 7

Exit Fullscreen For this assignment, you are required to conduct research on one of the following energy sources within Canada: • Fossil fuels • Nuclear energy • Biofuels • Wind energy • Solar energy You will research how the energy is extracted or produced, and provide details about the chemical process (stating equations and reactions). Your work must also include a comment on the impact your chosen energy source has on the environment and society. This assignment is worth 15% of your course grade. Instructions Assignment components Ensure your assignment includes the following pieces of information relevant to your chosen energy source: • The name of your chosen energy source and a brief description of what types of compounds are used in the production process • Details about the chemical process, stating balanced equations and reactions • A calculation of bond dissociation energy for the reaction, accompanied by an explanation of what the value indicates • An analysis of the impact…

1) Listen The Ksp value for calcium sulfate [CaSO4] is 2.40 X 10-5 and a professor made 1825 mL of a CaSO4(ag) solution but then one of his graduate student accidentally poured in a 0.125 M solution of calcium phosphate [Ca3(PO4)2] solution. You may ignore the additional volume coming from the Cag(PO4)2 solution to make the calculation simpler. Now that you have calculated the new equilibrium constant (K) with this common ion effect then which way will the chemical equilibrium shift? need more information to be determined at equilibrium chemical equilibrium will shift to the right first and then to the left chemical equilibrium will shift to the right chemical equilibrium will shift to the left 201591..docx LAB EXP. #3 -..docx Show All

Y Part A Which route would be better: one that produces a small amount of hazardous waste or one that produces a large amount. f nonhazardous waste? Which green chemistry metric accounts for this dilemma? Match the items in the left column to the appropriate blanks in the sentences on the right. minimize maximize the one that produces a small amount of hazardous waste Submit E-factor product made the one that produces a large amount of nonhazardous waste materials used difficult choose hazardous reagents used waste produced Request Answer The best route is the effective mass yield. The the amount of because it should the E-factor and accounts for this dilemma as it looks at the amount of Reset Help relative to

QUESTION 24 In the experiment "Beer-Lambert's Law and Spectrophotometry", you prepared a calibration plot similar to the one pictured below. What is the approximate concentration of a solution whose absorbance is 0.35? Calibration Plot 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0. 0.01 0.02 0.03 0.04 0.05 Save A Click Save and Submit to save and submit. Click Save All Answers to save all wnswers. Absorbance

adds-up to 100. You may use the periodic table previously provided, a calulator and clean scrap paper. Timed Test This test has a time limit of 2 hours.This test will save and submit automatically when the time expires. Warnings appear when half the time, 5 minutes, 1 minute, and 30 seconds remain. Multiple Attempts Not allowed. This test can only be taken once. Force Once started, this test must be completed in one sitting. Do not leave the test before clicking Save and Submit. Completion Your answers are saved automatically. Remaining Time: 1 hour, 58 minutes, 38 seconds. * Question Completion Status: A Moving to another question will save this response. Question 4 A sodium chloride solution is 38% NaCl by mass and has a density of 1.12 g.ml, determine: The Molarity of the solution The molality of the solution The mole fraction of water A Moving to another question will save this response.

22:26 Wed 25 Aug Question 10 of 20 A tank with 43.2 kg of water is leaking at a rate of 0.0135 kg/s . How many hours will it take until the tank is completely empty? STARTING AMOUNT ADD FACTOR ANSWER RESET *( ) 3600 1000 0.0135 0.583 53.3 0.889 1 3.20 x 103 60 43.2 0.001 hr min kg S kg/s

We were given an activity about observing 2 balloons. 1 balloon is in the basin with cold water and the other balloon is in the basin with hot water we were task to observe it after 1 minute and after 3 minutes and wrote our observation which is the balloon in the basin with hot water expanded and the balloon in the basin with cold water shrunk. The question is how would we apply our learning on this activity in real life?

nin x UNIT_8_PROGRESS_CHECK (Protected View) - Word (Unlicensed Product) Mailings Review View Help Tell me what you want to do ontain viruses. Unless you need to edit, it's safer to stay in Protected View. Enable Editing Office product is inactive. To use for free, sign in and use the Web version. Activate Use free at Office.com the questions. Acid Ka HF 6.7 x 10 4 НС-Н3О2 1.8 x 10-5 [H+][A-] a. Using the expression Ka= explain how to determine which solution has the lower pH, 0.10 M HF(aq) [HA] or 0.10 MHC,H3O2(aq). Do not perform any numerical calculations. b. Which solution has a higher percent ionization of the acid, a 0.10 M solution of HC,H;O2(ag) or a 0.010 M solution of HC,H;O2(aq)? Justify your answer including the calculation of percent ionization for each solution. 14T 13+ 12+ 11+ 10+ 9+ 8- 6- 5+ 4- hp

We started with 80mm of soil in the mason Jar.  In some cases, after seperation of the sand, silt and clay, the volume of the soil is greater than 80mm.  What could be the cause of this?

This section in a Safety Data Sheet contains information on the density, evaporation rate, pH value, and flashpoint of the material, among others. * Physical and Chemical Properties Handling and Storage Stability and Reactivity O Accidental Release Measures

HDPE and PS are both inert to bases and acids, which plastic would you rather chose to put 1 Liter of 6M HCl for general chemistry lab? Explain why.

The destruction and removal efficiency for a particular VOC in an incinerator is 97.5%. Determine the mass flow rate (mg/s) of the VOC at the inlet if the volumetric flow rate is 15 m3/s and the outlet concentration is 100 µg/m³. O A. 40 О В. 50 О С. 60 O D. 70

2- While trying to produce substance B, the following reactions take place. X and Y are unwanted components. What are the conditions (reactor type, temperature and concentration) that must be met for maximum B production, why? k1A = 0.5 e–10,000/T min–1, T (Kelvin) k2A = 50 e–20,000/T min–1, T (Kelvin) k3A = 100 e–5,000/T min–1, T (Kelvin)

4) But the real angler continues, regardless of the local sage. What sort of tone does the author create by using the connotative effects of the word sage in paragraph 6? The word "sage" is used primarily as a joke, gently mocking the fishing guide who cannot force fish to A) appear or guarantee good fishing to a paying customer. Primarily, the author is creating None of awe or B) respect for the great wisdom and power that the Eiminate sage, or fishing guide, holds in his mind. The author is being highly critical, even condemning. of the ignorance of these so-called "sages who can't help fisherman catch fish. The word sage" in this context has no connotaive D) effect on the tone or meaning of this entire passage.

3. Standard white vinegar you can buy in the grocery store is 5% concentration. That means 5% of the liquid vinegar is acetic acid and 95% of the solution is water. In a hardware store, you can buy industria strength vinegar, which is 30% concentration. This means that 30% of the vinegar is acetic acid, and the remaining 70% is water. Samuel does another experiment, this time with 5% vinegar and 30% vinegar. He sets up two science fair volcanoes (in no particular order), each with the same temperature, mass of baking soda and volume o vinegar. But one volcano uses 5% vinegar and the other volcano uses 30% vinegar. He measures the volume of gas production for the'first minute of each reaction, and he records the data below. Volcano # 1 Volume of gas produced (mL.) vs. Time (s) for Volcano #1 Time Volume of gas (s) produced (ml) 60 E 50 10 20 30 25 8 40 38 46 30 20 Volume of gas produced (ml) 40 50 50 60 52 of 10 53 20 40 60 80 Time (s) Volcano # 2 Volume of gas Volume of gas produced…

A population numbers 16,000 organisms initially and decreases by 8.9% each year.please type answer in words don't image upload thank you.

Chemistry Convert the following airborne concentrations from ppm to mg/m3 at NTP. Please show the work on a piece of paper, so it can be easier for me to read.   . a. 110 ppm cyclohexene b. 8 ppm dimethylformamide c. 20 ppm methylene chloride

Tab Window Help View History Bookmarks Profiles Chrome File Edit A ALEKS - Iffat Khan - Learn St. John's University - My Appl x A www-awn.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-lijkPWvZoZLqKt1FLlq7wcPWKzBYGfE9IMFjfv2X= O SIMPLE REACTIONS Identifying precipitation, combustion and acid-base reactions Classify each chemical reaction: type of reaction (check all that apply) reaction O precipitation O combustion O combination кон (аq) + нсIо, (аq) - ксіо, (аg) + н, о() O single replacement O double replacement O acid-base decomposition O combination O precipitation O single replacement O double replacement O decomposition O combustion Feso, (aq) + PbCL, (aq) → FeCl, (aq) + PbSO,(s) O acid-base O combination O precipitation 2K (s) + Br, (1) → 2K Br(s) O single replacement O combustion double replacement O acid-base O decomposition O combination O precipitation Baco, (s) Ba0(s) + Co, (g) O single replacement O combustion O double replacement O acid-base decomposition Explanation…

O : Q 8 File Edit View History Bookmarks Profiles Tab Window Help O Psychology Research Sign-Up x WPAL 101 233 Spring 202 ALEKS A ALEKS - Reyna Garcia Watch Gilmore Girls | Netflix A www-awu.aleks.com/alekscgi/x/lsl.exe/1o_u-IgNslkr7j8P3jH-lvdWKW_BBZZ16tTytly4Fcfu6zOtOf8oMM9smRgOXk4zql8rHN-B4Sv7Er8YkAkkZH6IMU... O * G Spotify Web Playe. M Common Ethical D. O CHEMICAL REACTIONS 0/5 Solving moles-to-moles limiting reactant problems Nitrogen dioxide (NO2) gas and liquid water (H,O) react to form aqueous nitric acid (HNO,) and nitrogen monoxide (NO)gas. Suppose you have 2.0 mol of NO, and 5.0 mol of H,O in a reactor. Calculate the largest amount of HNO, that could be produced. Round your answer to the nearest 0.1 mol. | mol Explanation Check OU Rinhts Reserved. Terms of Use I Privacy Center Accessib

OnCourse Connect Assessment: Chemistry x Copy of spread_of_islar x = The Spread of Islam -G x M Inbox (904) - aarojame A Classes boncourseconnect.com/assessment/1651879/5287e2a3-0d0b-e2c0-c15c-3e68a37149b4 D TPSS Bookmarks CHEMISTRY BENCHMARK TEST 01 CHEMISTRY I 12-7 (AARON JAMES, ID: 12390724) A student dissolved 15 grams of pure acetic acid (CH,COOH) in enough water to make 100. milliliters of solution. Given the atomic masses provided on the periodic table, what is the molarity (M) of the acetic acid solution? a 0.025 molar D0.40 molar © 2.5 molar O 4 molar A B B 1 2 4 5 6 7 8 9 10 3. O Save/Exit 4 sn TESS

354 Submit Part B What are the reactants and products when butane combusts with excess oxygen? Express your answer as a chemical equation. The equation does not need to be balanced. ( R Request Answer 1.8 Submit A chemical reaction does not occur for this question. Provide Feedback 1 ΑΣΦΑ BREW- Ti 10 a Request Answer izel Tov- Show" 4SH-"A GUT THIS INSTEAT ? stane Copyright © 2023 Pearson Education Inc. All rights rese #/ BAKERY hp 2221 IT PALM B $1.19.145 C.

Activity B: Rates of diffusion Get the Gizmo ready: Click Reset. Introduction: The Diffusion Gizmo allows you to manipulate five variables: the Wall, the number of x particles in region A, the number of y particles in region B, the temperature, and the Particle mass. Question: How do factors other than temperature affect the rate of diffusion? 1. Choose a variable: Pick a variable to investigate. Which one did you choose? 2. Form hypothesis: How do you think this variable will affect rates of diffusion?

board Instructions Please select the best answer for each of the questions. This test has a time limit of 2 hours.This test will save and submit automatically when the time expires. Warnings appear when half the time, 5 minutes, 1 minute, and 30 seconds remain. Timed Test Multiple Attempts Not allowed. This test can only be taken once. Force Completion Once started, this test must be completed in one sitting. Do not leave the test before clicking Save and Submit This test does not allow backtracking. Changes to the answer after submission are prohibited. Your answers are saved automatically. Remaining Time: 1 hour, 34 minutes, 00 seconds. * Question Completion Status: A Moving to the next question prevents changes to this answer. Question 2 What is the pH of the solution which results from mixing 25 mL of 0.20 M CH3CO>H and 25 mL of 0.20 M NAOH? (K, for CH3CO>H = 1.8 x 10-b) OA 8.87 OB. 10.43 OC7.00 OD.9 02 OE 5.13 A Moving to the next question prevents changes to this answer. *- F11…

5 please help! *urgent* write as many accurate and relevant statements about the picture below. please write more than 5 correct descriptions/statements. please be as descriptive as possible.

Subject : Chemistry and Environmental Pollution Write short notes on the following contaminants of emerging concern (CECs). The notes should explain what are they, their properties, uses, where it is found and their health risks.   •Endocrine-disrupting compounds (EDCs)   •Nanomaterials   •Microplastics

Give typed full explanation only Nothing should be in written form otherwise leave it

Please help me fill in the highlighted. I don't know. Please explain how to get the answers. Thank you in advance.