Unit IV Scholarly Activity

Help Explain one effective or ineffective aspect of this graph.

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…

what is the concentration of the unknown sample using serial diluitions: 0.05M 1.7472nm, 0.025M 0.8569nm, 0.0125M 0.4167nm, 0.00625M 0.1958nm the epsilon value is 0.0101 and l is 1 cm

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A certain drug has a half-Iife in the body of 2.5 h. What should the interval between doses be, if the concentration of drug in the body should not fall belc 40.% of its initial concentration? Round your answer to 2 significant digits.

Chemistry An aquifer contaminated with petroleum is found to have the following component concentrations at a particular site: benzene158 ppm toluene124 ppm ethylbenzene91 ppm xylene45 ppm n-heptadecane161 ppm pristane  84 ppm Provide an estimate for the age of the spill at this site using (a) BTEX ratio and (b) nC17:Pr ratio. Show your calculations and use units throughout. Give proper s.f. for the answer.

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Page Grades for Nancy Duran: CHE 103 X A ALEKS - Nancy Duran - Learn × + ✰ www-awa.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-IQgHlvdL2donGg9plnQUm9kiGJhghYuAiZLqZVWgwEXBsd4IBLw36AkXLcyDcVVrmllCzwt0IT1g... ? O CHEMICAL REACTIONS Limiting reactants QU N OO EXPLANATION Gaseous butane (CH₂(CH₂)₂CH3) will react with gaseous oxygen (O₂) to produce gaseous carbon dioxide (CO₂) and gaseous water (H₂O). Suppose 2.3 g of butane is mixed with 4.49 g of oxygen. Calculate the maximum mass of water that could be produced by the chemical reaction. Round your answer to 3 significant digits. The question is a limiting reactant problem. You can tell it's a limiting reactant problem by the fact that you were given the initial amounts of more than one reactant. Here is the balanced chemical equation for the reaction you will need to solve the problem: 2 CH₂ (CH₂), CH₂(g) + 130₂ (g) → 8 CO₂(g) + 10 H₂O(g) You can solve limiting reactant problems in the following three steps: Step 1: Find the initial…

A sample of rainwater was collected from four separate locations across theMetroplex. Each sample was measured once by two separate methods for the presence ofsulfate. Determine whether the two methods are equivalent with respect to giving thesame answer for [SO42-].

ALEKS-Andrew Herrera - с BREAKING: Trump Target X G co2 mass - Google Search X www-awa.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-lvgXwPgmUhvITCeeBZbufuBYTi0Hz7m7D3ZcS7wwwixkly301VUrFixkxntsU-sHou_SrXFcoeXT-... X G ml 1- Google Search 85°F Sunny OSTATES OF MATTER Using the combined gas law Exmlanation For many purposes we can treat nitrogen (N₂) as an ideal gas at temperatures above its boiling point of -196. °C. Suppose the temperature of a sample of nitrogen gas is raised from -96.0 °C to -78.0 °C, and at the same time the pressure is increased by 15.0%. Does the volume of the sample increase, decrease, or stay the same? x | Check If you said the volume increases or decreases, calculate the percentage change in % the volume. Round your answer to the nearest percent. -- Q Search increase LO O decrease O stays the same G140 in percent - Google Sear x + C 10 X 1/5 S © 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center f

3. In patients with early stage lung cancer, stereotactic body radiation therapy (SBRT) has greatly improved survival in patients unable to undergo surgery. In tumors 100 Gy 10 BED have demonstrated significantly improved survival, when compared with doses <100 Gy 10. What is the BED of the following protocol? Would you suggest increasing the dose, or does it appear adequate, assuming the given information? What would you expect as the most likely side effect of therapy for this patient? 3 fractions of 15 Gy delivered every other day.

Lege-CHEM 1020- Spring20- NGWENDSON > Activities and Due Dates > Ch 7 HW O Assignment Score: 42.6% O Resources Lx Give Up? E Feedback Resume Question 23 of 23 O Attempt 3 Consider the reaction. 2 Pb(s) + 0,(g) → 2 PbO(s) An excess of oxygen reacts with 451.4 g of lead, forming 386.6 g of lead(II) oxide. Calculate the percent yield of the reaction. percent yield: 74 privacy policy terms of use contact us help about ús careers 13 59 6. PAGES Aa APR 16 POF DII DD D00 F11 F12 F10 80 F9 F7 F8 F5 F6 F4 F3 & of

(9.29 × 105/8)-20.81 =  with correct sig figs

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For the reaction of NO, to form NO and O2, which reaction vessel (all at different temperatures) would yield the smallest equilibrium constant? 2NO2(g) = 2NO(g) + O2(g) Datasheet and Periodic Table A8-12 3: 7 T. H. K V All IN of