Review Constants Periodic Tab Part A Butadiene (C4H6) reacts with itself to form a dimer with the formula C8H12. The reaction is second order in C4H6. Assume the rate constant at a particular temperature is 4.0 x 10-2 M-18-1 and the initial concentration of C4H6 is 0.0180 M. What is its molarity after a reaction time of 1.30 h? Express...
Please explain, thank you. 4. (15 points) A solution that is 0.500 M HF and 0.240 M NaOH reacts to produce a mixture with what pH? The pKa of HF is 3.20. Hint: This is two reactions. The first involves a strong base with a weak acid -it will be quantitative. The second is an equilibrium reaction, the winner of...
Please answer questions 14, and 15!! The rate constant for a particular reaction is 0.47 M^-1 s^-1. If the initial concentration of reactant is 0.25 mol/L, it takes _____ s for the concentration to decrease to 0.20 mol/L. A) 2.1 B) 1.4 C) 1.0 D) 0.47 E) 0.20 Use the mechanism below to answer the next question NO + Br_2...
Given: H2(g) + CO2(g) <-> H2O(g) + CO(g) [H2]=0.061M [CO2]=0.012M [H2O]=3.1M [CO]=8.4M Calc.Kc. The reaction is performed at a new temperature. An initial sample of 0.23 M H2 and 0.41 M CO2 gives 0.18M H2O and 0.18 M CO at equilibrium. Determine the composition of the equilibrium mixture. Calc. Kc. Of note, I got Kc = 3.6 e 4 for...
1. A coffee cup calorimeter was used for the neutralization reaction of 100 mL of 1.00 M hydrochloric acid with 100 mL of 1.20 M sodium hydroxide. The initial temperature was 22.88 °C and the final temperature was 29.39 °C. Calculate the calorimeter constant for the reaction. HCl (aq) + NaOH (aq) NaCl (aq) + H2O (∆H°rxn = -58.3 kJ/mol)...
An experiment was conducted to determine the rate law for the reaction A2(g)+B(g)→A2B(g) . The table above shows the data collected. Based on the data in the table, which statement is correct? Trial 1 [A2] 0.10 [B] 0.50 0.20 0.50 Nm + Initial rate (Ms-1) 2.5 10-4 5.0 x 10-4 5.0 x 10-5 1.0 x 10-4 0.30 0.05 1 0.30...
I only need help with part D. The answer is 0.065 sec-1, but I need help to understand why. You are studying a dehydrogenase enzyme that catalyzes the formation of NADH from NAD^+. Subsequent studies determined that NADU will absorb at 340 nm while NAD^+ will not. The extinction coefficient for NADH is 6220 M^-1 cm^-1. The reaction volume is...
estigating Patterns in Data 2 Some oral medications help us get better by entering our bloodstream. After we take the amount of the medicine that is in our bloodstream will decrease over time We can model this decrease by an exponential curve. The following table shows the amount of is a common brand name) in a person's bloodstream t hours...
I want to know why did my professor modify the formula in this problem? When solving for depreciation, I know the formula is (depreciation = [initial cost - residual value / # of useful years]). However, my professor did this instead: depreciation = initial cost / # of useful years. The problem states that you should find the deprecation using...
9.1 Alcohols Worksheet Prior Knowledge: ✓ Acid/base definitions and pka values. ✓ Nucleophile/electrophile definitions and roles. ✓ Substitution and elimination reactions and mechanisms using curved arrows. Leaving group ability. Learning Objectives After completing this activity students should be able to: ✓ Predict the role of an alcohol in the Williamson Ether Synthesis and Fisher Esterification. Determine that protonation of an...