Hello, these are part of one question, please show work. Data Sheet Chemical Reactions 2. Obtain and clean with sandpaper to expose the surface: 3 pieces of zine, 2 pieces of copper and 1 piece of lead. Place 6 test tubes in a rack and label each appropriately. Observe the contents of each of the test tubes for evidence of...
Can I get help with these 4 questions. 1. If copper completely dissolves in 15.9 M nitric acid according to the following formula, how much nitric acid is required to dissolve 1.238 g of copper? Cus+ 4HNO3) Cu(NO3)2(a + 2NO 21g) + 2H2O2 2 Determine the oxidation numbers designated by letters for the following redox reaction and write them in...
i need help with question number 6, 7 a, b, 8, and 9 6. The reaction NO2(g) + NOR) <===> N200) + O2(g) has Keq = 0.914 at a certain temperature. At the same temperature, what is the value of Keq for the following reaction? 2 N2O(g) + 2 Ozta) <===> 2 NO26) + 2NO() 7. The reaction NO2(g) +...
You perform three different reactions at constant volume and note the heat associated with the three reactions are equal. Reaction 1 produces gas, reaction 2 consumes it and reaction 3 has no gaseous substances as reactants or products. Which statement below is true? Note: Greatest refers to the value, not the magnitude, so -2 is greater than -5 and 1...
Question 3 10 points Save Ans It is important that you understand how to use the data generated by an absorbance based enzyme assay and relate this back to the enzyme activity Using the steps provided below. calculate the actvity of GPOH in the original preparation expressed as units ml tt two decimal places) under the following conditions: 75 uL...
You use a regression to try to predict little league batting averages based on the player’s height (measured in inches). The resulting regression equation is batting average = .025 + .005*height and e) What batting average would you predict for a little league player that is 8 feet tall? Is this a reasonable application of the regression? f) What batting...
Calculate the standard entropies for the following chemical reactions. Sulfur S(s, rhombic) 31.88 430.9 S818) 49.7 -300.4 SO2(8) SO;(8) SO2 (aq) 102.3 - 296.9 -395.2 -909.3 -370.4 -744.5 248.5 256.2 20.1 217.94 203.26 114.60 Hydrogen Hg) H(aq) H*(8) H2(8) 0 1536.2 1517.0 108.9 130.58 Iodine I(8) 1 (8) 106.60 -55.19 62.25 70.16 -51.57 19.37 12(8) 12(8) HI(g) 180.66 111.3 260.57...
just the balanced equations for main reaction and side reaction with steps and major / minor products please and thank you can you create a balanced stereoselective mechanism equation for both reactions using the 4tertbutyl starting base equation from the 1st previous image for the primary reactions and side reaction equations on the 2nd previous image. and can you also...
pls do all Page 6 of 14 22) Identify a good buffer. ) small amounts of both a weak acid and its conjugate base B) significant amounts of both a strong acid and a strong bso C) small amounts of both a strong acid and a strong base D) significant amounts of both a weak acid and a strong acid...
When acyl halides (R?COX) or acid anhydrides (R?OC?O?CO?R) react with primary amines (R?NH2) or secondary amines (R2NH), the reaction yields an amide: O || R?C?NR2 where R may be an alkyl group or hydrogen atom. For example, propanoyl chloride ( O ||CH3CH2C?Cl) reacts with ethanamine (CH3CH2NH2) to form (O || CH3CH2C?NHCH2CH3). The IUPAC name for the product isN-ethyl propanamide, as it is formed from ethanamine and...