CHEM 102 - Recitation Week10

Read and interpret the following information using the following abstract from a scientific journal article. In 2-3 sentences, summarize what you understand from this research

7. You can see an MSDS below. Please answer the following questions related to the MSDS. a) What is the name of this chemical? b) What should you do if someone drinks the chemical? c) Would this chemical catch on fire if it was exposed to flames? d) If this chemical gets in your eye what should you do? e) What color is this chemical? f) What should you do if someone spills a small amount of the chemical?

B. Rates of reaction are typically measured as the change of concentration per unit time. Some typical units of concentration are: M, mM, pM, µM, nM. Some typical units of time are: years, days, hr, s, ms, ps, µs, and ns. For each reaction, suggest a reasonable unit of measure for the rate of reaction. a. The combustion of gasoline. b. The transformation of organic material into crude oil. Chemical change involved with memory in the human brain. с. d. The rusting of an iron nail. 9. Why would a scientist use nM/ps instead of M/s? - 112 -

Retype each equation into the adjacent box. Use the X' button for superscripts and the X, button for subscripts. Use the right and left arrow keys on your keyboard to get out of either the superscript or the subscript mode. 2Na + Cl, 2NaCl L(s) + 2e 21¯(aq) W étv 26 MacBook Air DII DD F12 F11 F10 F9 80 F8 F7 F6 F5 F3 F4 * & dele %23 $ 9 く

Chapter 13 is a Homework question. question 47. Please explain how can I do it without graphing it because if this question comes on the test how can I quickly solve this question without any graph and do it mathematically? If possible can you make a video? Thank you.

Calculus Preface (?) Brytwave Blackboard Quizlet Clutch E Knowledge Check Question 9 Black Forest Biologicals, a biotech startup, has a promising Alzheimer's drug candidate Compound SLT-88 entering Phase I trials this year. SLT-88 is the only product formed by the reaction of two precursor compounds A and B, both of which are quite expensive. The chief medicinal chemist of Black Forest is trying out different reaction conditions to minimize the cost of manufacturing SLT-88. In the table below are listed the initial and final amounts of A and B used under two different trial conditions, and also the actual amount of SLT-88 recovered in each case. Complete the table by calculating the theoretical yield of SLT-88 and the percent yield of SLT-88. Round your amounts to the nearest milligram and your percentages to the nearest whole percent. amount of A amount of B yield of SLT-88 Trial initial final initial final theoretical actual 1000. mg 0 mg 550. mg 286. mg 999. mg 150. mg 0 mg 1000. mg…

Can you help me answer this type of question from my study review package please

1.Explain the slogan about chemical safety " A spill, A slip, A hospital trip" 2.How do you apply 5s(sort, set in order, shine, standardize, sustain) to attain chemical safety at home and in school?. Enumerate

I have my graph made but need to do the following but do not remember how.  "Use graph paper in lab book to plot moles S2O82- consumed versus time in seconds and fit with a line of best fit.""To determine the slope of your line do not use any of the data points from your data, use 2 points on your straight line.""Units of rate are M/s so you must calculate rate from the slope of your line (mol/s)" The first picture is the graph, using the seconds and moles from the second picture.

Write out the recipe and list all the ingredients (including the measures) of your favorite dish. Your recipe must not be the same as another post. If your favorite dish has already been posted, then choose another recipe. Explain how the ingredients in this recipe cause a chemical reaction. Ask ONE (1) clarifying question about a topic you find difficult or want to learn more about from the concepts introduced in this module. In your response to your peer’s posts, locate a resource that may help address the clarifying question regarding the genetic topic in the initial post.

All changes saved 17 Allyson and Cami add 25 mL of 3 M hydrochloric acid (HCI) to beakers containing 0 mL, 25 mL, 50 mL, and 75 mL of distilled water. The students then drop 5 cm of Magnesium (Mg) ribbon into each beaker and measure the time for the magnesium to completely react with the acid. The results are shown in the data table. W Y. 125 mL 125 mL 125 mL 125 mL 100 mL 100 mL 100 mL 100 mE 75 mL 75 mL 75-mE 75 mL 50 mL 50-mL 50 mL 50 mL 25-mL 25 mL 25 mL 25 mL Magnesium and HCI Reaction HCI Water Time Beaker (mL) (mL) (s) W 25 8. 25 25 16 25 50 23 Y 25 75 33 17 of 25 NEXT SAVE&EXIT PREVIOUS Which statement BEST explains the change in reaction time as the amount of water increases? US 7:18 Lit & 8.

The concentrations of three gaseous chemicals are measured over time (see figure, below). Choose two different significant points in time for this reaction and explain what is happening at the chosen times. Support claims with evidence from grade 12 chemisty concepts.

Order from smallest to greatest

Retype each equation into the adjacent box. Use the XY button for superscripts and the Xy button for subscripts. Use the right and left arrow keys on your keyboard to get out of either the superscript or the subscript mode. 2Na + Cl, → 2NACI L(s) + 2e → 21-(aq)

Introduction to Integrated Rate Laws Learning Goal: To understand how to use integrated rate laws to solve for concentration. A car starts at mile marker 145 on a highway and drives at 55 mi/hr in the direction of decreasing marker numbers. What mile marker will the car reach after 2 hours? This problem can easily be solved by calculating how far the car travels and subtracting that distance from the starting marker of 145. 55 mi/hr x 2 hr = 110 miles traveled milemarker 145 -110 miles milemarker 35 If we were to write a formula for this calculation, we might express it as follows: milemarkero- (speed x time) milemarker where milemarker is the current milemarker and milemarker, is the initial milemarker. Similarly, the integrated rate law for a zero-order reaction is expressed as follows: [A]orate x time [A] or since rate k[A] = k Azero-order reaction (Figure 1)proceeds uniformly over time. In other words, the rate does not change as the reactant concentration changes. In contrast,…

Show ALL your steps, work and details in your calculations, use GRASPS: Given, Required, Analysis, Solution, and Paraphrase to answer the question, it is required. Answer in complete sentences and therefore statements.

Mind Tap - Cengage Learning X om/ilrn/takeAssignment/takeCovalent Activity.do?locator=assignment-take me teaching and le X [Review Topics] [References] Use the References to access important values if needed for this question. An 1.11 mol sample of nitrogen gas at a temperature of 10.0°C is found to occupy a volume of 27.5 liters. The pressure of this gas sample is atm. Submit Answer 888 F4 + A FS Retry Entire Group 8 more group attempts remaining Cengage Learning Cengage Technical Support MacBook Air VA DII DD Previous

Help please.

Retype each equation into the adjacent box. Use the XY button for superscripts and the X, button for subscripts. Use the right and left arrow keys on your keyboard to get out of either the superscript or the subscript mode. 2Na + Cl, - - 2NACI L(s) + 2e- 21 (aq)

Report Sheet (Energy and Matter) Name Qudreg L. Formantes Date 07 /04 21 Section 115 Team Instructor Name Midas Tsai Part A: Exothermic and Endothermic Reactions: NHẠNO3 Solution CaCl2 Solution Initial water temperature (°C) 22 °C 22°C Final water temperature (°C) 19 °C 24° C Temperature change -3 °C 2° C Endothermic or Exothermic Endo thermic Exothermic Add the term heat to the reactants or products in the following chemical equations. H20 NH,NO; (s) → NH,* (aq) + NO; (aq) H2O CaCl, (s) Ca* (aq) + 2C1° (aq) Q 1: Use the knowledge you attained from the above activity and answer the following. Indicate the process that absorb energy with a positive sign (+, endothermic) and the process that releases energy with a negative sign (-, exothermic). Process Sign (+ or -) Exothermic or Endothermic Freezing water Cooking a potato in a microwave oven Burning wood log in a fireplace Digestion of food inside the body Photosynthesis