Lab+2

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.

AutoSave File Home Insert Draw Design X Paste Clipboard Page 4 of 9 Off Times New Roman 11 BIU ab x₂x²A 2. A CURE What's in Your Water - Introduction and Prelab Ass Layout References Mailings Review View A A Aa A · E ·5·|==| = = = - Font 61°F Cloudy Next, look at Graph 2. Based on this graph, if you make less than $39,524 per year, what is the average number of hazardous waste sites within one square mile of you? 2295 words What about if you make more than $65,876 per year? F What does this tell you about where hazardous waste sites might be located, and who might be affected by them? English (United States) Text Predictions: On O Search Paragraph Accessibility: Investigate

26) The floor tiles in SE 27 are about 1 square foot and the lab is about 25 tiles wide and about 36 tiles from front to back. When the emergency shower was demonstrated, in 10. seconds the water in the trash can was about 1 foot deep. One student estimated this was 2.5 gallons. Estimate how deep the room will get in inches after a 15 minute shower. List 3 simplifving assumptions you make in this calculation rea L-36 Tile fiDw ill it cost2 The density of gold is 27l An artist plans to apply gold leaf to a painting with an area of 2.32 f? and a thickness of 1.50

FINAL Experiment 1- January 2021_-789644623 - Saved Layout Review View Table A friend of yours went panning for gold last weekend and found a nugget that appears to be gold. With your newfound scientific prowess, you set out to determine if it is really gold. Your tests show that the nugget has a mass of 7.6 g. Immersing the nugget in water raised the volume from 7.22 mL to 8.06 mL. The density of gold is 19.32 g/cm3. What will you tell your friend? acer

You work in a research organization that is looking for markers of various diseases that can be used as a diagnostic for the disease. It has been reported in the past that high levels of Cu are found in the sweat of people with cystic fibrosis. One of the research projects is focused on looking for high levels of Cu in samples that can be obtained non-invasively such as saliva, sweat, hair, nails, etc. The lab will analyze large samples for Cu. What instrument would you recommend purchasing to support this work, Atomic absorption spectrophotometer or an inductively coupled plasma atomic spectrophotometer? Explain the basis for your decision.

Please do question 5 for me and please don’t return in it just write one sentence for each box

2 3 4 -5 g . Use this information to calculate K.n for PbCO2. The solubility of PbCO, in water at 25 °C is measured to be 7.3 × 10 sp Round your answer to 2 significant digits. Continue O 2022 McGraw Hill LLC. All Rights Reserved. Ter II 20

+ 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

sity o... Fingsbo... ckboard... EARED4 Method? 7... 9 2 W 6 9 QUESTION 5 One mole of copper(II) sulfate, CuSO4, contains 2.41 x 1023 2.41 x 1024 6.02 x 1023 1.51 x 1023 4 Click Save and Submit to save and submit. Click Save All Answers to save all answers. 3 16 MAF 1 23 H R T moles of O. tv Y 8 Save All Answers 8 0.22 S

Home Tools Lab Experiment #... x ... +) 玩, 1 | 2 97.4% Record your observations following each reaction including changes in color and state of matter. AGNO3 (Ag*) Pb(NO3)2 (Pb²*) Ca(NO3)2 (Ca²+) а e i NazCO3 Light orange solid white, cloudy solid white, cloudy, solid (СО2) b NaOH f dark brown solid stay clear, liquid white, cloudy solid (OH) g k NazSO4 stay clear, liquid white, cloudy, solid white, cloudy, solid (SO?) d NaCl 1 white, cloudy solid white, cloudy solid stay clear, liquid (CF) .... Remember to complete and submit this table to your instructor before the end of the class session.

text Roboto BIUA 12 1三 主 2. 4. Baking soda is an essential ingredient for most bread recipes. Without baking soda, describe how bread would be different. You may focus on taste, texture, bake time, color, size, or any other relevant characteristics in your response.

SHOW WORK. DON'T GIVE Ai generated solution

uiz: Final Exam Fall 2022 > с ǝl 2022 Fall A Home asu.instructure.com/courses/129933/quizzes/1010775/take Time in AZ Announcements Modules Pearson Access Grades X + Discussions BryteWave Course Materials Resources Smarthinking Online Tutoring Accessibility Honorlock ASUO ASU Course Policies Expand IG. Question 3 A piece of Na placed into a graduated cylinder of water displaces 22 mL of water. Based on the given densities, what was the mass of the metal put into the container? Density (g/cm³) Metal titanium 4.50 potassium 0.862 manganese 7.44 lead sodium O 21 g O 13 g O 17 g O 9.7 g O 6.3 g 11.3 4 pts 0.968

I need help with the calculations for this lab.

Please answer fast it’s very important and urgent I say very urgent so please answer super super fast please For the image attached For 1. a Mass of metal: Trial 1 is 35.0228 g Trial 2 is 35.0915 g Trial 3 is 34.0821 g Mass of water: Trial 1 is 20.0177 g Trial 2 is 20.0250 g Trial 3 is 20.0168 g For delta t of water: Trial 1 is 15.5 C Trial 2 is 15.7 C Trial 3 is 15.1 C For delta t of metal Trial 1 is 80.1 C Trial 2 is 80.2 C Trial 3 is 79.5 C For B my calculated Specific heat is: Trial 1 is 0.462 Trial 2 is 0.467 Trial 3 is 0.466

2. Using the data in Appendix A of Benjamin's Water Chemistry, answer the following questions a. What is the Henry's law constant (KH) at 25 °C for the exchange of hydrogen sulfide between the gas and aqueous phases? H₂S (g) H₂S (aq) b. What is the Henry's law constant for the reaction in part a) at a temperature of 5 °C?

$ F4 An aqueous solution of 2.87 M hydrochloric acid, HCl, has a density of 1.05 g/mL. The percent by mass of HCl in the solution is %. Submit Answer % 5 T G F5 Retry Entire Group 9 more group attempts remaining 6 Cengage Learning | Cengage Technical Support Y H [Review Topics] [References] Use the References to access important values if needed for this question. MacBook Air F6 & 7 gilinent-take F7 8 00 1 DII FB K ( 9 F9 0 L ) O A F10 P Chapter Previous + 11 X Next ☐ Save and Exit OWLY S deles

please i really need your help with this

Part A If 2.0 x 10-4 moles of S20 in 50 mL solution is consumed in 3 minutes and 17 seconds, what is the rate of consumption of S20 ? Express the rate in mol per liter-second to two significant digits. M 2.128 10 Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining < Return to Assignment Provide Feedback

Project PART I. Our Carbon Budget A major driver of global climate change is the emissions of greenhouse gases such as CO₂ into the atmosphere from human activities such as the burning of fossil fuels for transportation, electric power generation, manufacturing, agriculture, home heating, and so forth. Global average temper- atures are now slightly higher than 1° C above their pre-Industrial Revolution levels. Damaging sea level rise and extreme weather events (such as the recent wildfires in Canada that led to the unhealthy air in NYC last summer) will become an increasingly major problem around the world if global average temperature rises more than 1.5° C. Scientists estimate that the total additional amount of CO₂ that can be put into the atmosphere without reaching the 1.5° C level is about 51 parts per million (ppm) or approximately 400 Gigatons (Gt). Let's call 51 ppm our carbon budget. In this project, we want to use linear systems of differential equations to analyze the…

View Assessment ← C Pri Ter Acc X 13 minutes remaining Question 1 blackboard.matc.edu/ultra/courses/_525703_1/outline/assessment/_1556 Blank 1 X Blank 2 Blank 3 All answers must have the correct units. Watch your significant digits! A 55.0 g sample of sugar (C12H22011) is dissolved in 170. g of water. a. What is the mass of the solute? Blank 1 g b. What is the mass of the solvent? Blank 2 g c. What is the mass of the solution? Blank 3 g d. What is the percentage by mass of this solution? (% m/m) Blank 4 % Blank 4 Add your answer Add your answer Add your answer Add your answer Courses Last saved 12:59:40 PM X Questions Filter (6) ▼ + K First < Previous Next

TRUE OR FALSE __________ 6. Glassware is clean when no water droplets cling to the inner wall of the vessel. __________ 7. When smelling the odor of a chemical substance, fan your hand over the substance toward your nose which should be centimeters away from the substance. __________ 8. An accident as simple as breaking a beaker containing distilled water in the sink does not need to be reported to the laboratory instructor. __________ 9. Students should turn off cell phones, iPads, and other electronic devices during the laboratory class. __________ 10. It is a good laboratory protocol to call other students’ attention when they do not practice good laboratory safety procedures.

An environmental scientist obtained the following replicate concentration measurements of methane (CH4) gas at a landfill site: Replicate Measurements CH4 Concentration (mg/m3) 1.0 0.1571 2.2 0.2031 3.0 0.1914 4.0 0.2103 Calculate % error when the scientific community accepts 0.2102 as true value.

Propert es Rev x E Pypor Fulkers x E Pypor Fulkers x O Mal -Fukersx Thomas, Gebri x nent/d/1gQ-IsBbucwMOGIVPUnbTx13fvoW_HIOYBH70iemw3bw/edit view #2 ☆回 Is Add-ons Help Accessibility Last edit was 2 minutes ago Courior New - - 12 + BIUA 田回- =- 三 : =-E E Properties Review #2 T-=Instructions: Select the best answer, by highlighting your chosen answer, to complete the following questions. 1. Mass divided by volume is the formula for which physical property? a. Weight b. Density which tYpe of properties include color, shape, size, and e Conductivity d. None of the above state of matter? a Physical property 6. Chemical property 3. which of the following is a chemical property of a substance? a. Densily b. Color 4. Which physical property is a size dependent property? a. Mass b. Weight 5. which physical property is a size independent property? a. Color b. Mass C. Mass d. Reacts with acid C. Volume d. AIl of the above c. Boiling point d. Both b and c

Student Information Chem159 - Practice 5 Compounds No. of Questions Work Time Liam A Fox (laf251) Practice 20 297:49:47 6 7 8 9. 10 11 12 13 14 15 16 17 18 19 20 (Not Answered) 45.3 g of magnesium sulfate heptahydrate is heated in an oven until all the water is driven off. What is the mass of the anhydrous compound?. 9.28 g 21.5 g 23.8 g 22.1 g (Correct answer) 23.2 g

LIMIT TEST (IMPURITIES - BIOLOGICAL) Instructions: Note the color change of each of the samples by writing blue or pink accordingly. Then give inference whether the sample is contaminated or not contaminated upon observation. Answer the highlighted numbers.     BLANK  (Sterile distilled water) Reference Sugar Solution Sample A Sample B REPLICATE 1 BLUE BLUE PINK PINK REPLICATE 2 BLUE PINK BLUE PINK REPLICATE 3 BLUE PINK PINK PINK INFERENCE NOT CONTAMINATED CONTAMINATED 1 2   1. 2. 3. Which of the two samples is relatively clean of biological impurities? 4. Given the result in limit test as an analyst, what will be the final conclusion to this? Write whether rejected or accepted for each sample.  (see attached photo)

The solubility of Mg(OH), in water at 25 °C is measured to be 0.0096 Use this information to calculate Ke, for Mg (OH)2. L sp Round your answer to 2 significant digits. x10

A Mel B C Ginny Carl D Steve Student Trial #1 (g) 0.5 Carl Ginny Mel Mass of Baking Soda Steve 0.42 0.44 0.47 Trial # 2 (g) Trial #3 (g) 0.51 0.46 0.43 0.43 Students conducted an analysis of baking soda in chemistry lab. During the activity, they had to calculate the mass in grams of the baking soda being used. Some student data appears in the table. At the end of the activity, the teacher told the students that the actual mass of baking soda was 0.45 grams. Which student had the most accurate and precise data? 0.46 0.5 0.45 0.45 2 of 8 12:11

Explain your rationale for using the summative assessment (below) from the lesson plan on mixing substances in a 5th-grade classroom based on the below standard and learning objective, including how it aligns with the learning objective.  Summative Assessment  Summative: Components of the Lab Report Purpose: The student should clearly state the purpose of the experiment, which is to determine whether the mixing of two or more substances results in new substances. Procedure: The student should describe the steps they took to conduct the experiment. This includes the substances they chose to mix and the safety equipment they used. Observations: The student should record any observable changes that occurred when the substances were mixed. This could include a color change, the formation of a precipitate, or a change in temperature. Conclusion: The student should state whether a new substance was formed based on their observations. They should also reflect on their accuracy in…

How is scientific writing different from the style of writing that you learned in ENG 111?  (Select all that are correct.)   Group of answer choices a. Scientific writing is concise, written in 3rd person, and uses past tense. b. Science writing uses lots of colorful language to describe visual reactions to the experiment. c. Science writing uses lots of personal pronouns (e.g., I, me, we, you, your, our) to show ownership of the results and personal attention to directions. d.Science writing assumes the reader already knows how to do the experiment that is the subject of your paper. e.Science writing may include references that are from peer reviewed sources.

Rsimi, Nour 2023VVA Chemistry.7b.FA1 An unknown solid substance is heated according to the temperature versus time graph below. Temperature (°C) 70 40 30 20 288 8 2 0 0 5 15 Time (min) 20 00 4 of 5 1 2 3 4 5 25 While the substance is a liquid, at what temperature do the molecules of the substance have the greatest average kinetic energy? 2 % 3 4 5 16 7 8 insert

I need help understanding how to do this, can you please show me how you get the CFU/mL

Answer using complete sentences. Text question.