What is the total strain energy associated with an H <----> Br eclipsing nteraction in 1-bromoethane?

For the reaction CH 3 Br (aq) + OH - (aq) → CH 3 OH (aq) + Br- (aq) it is known that when the concentration of OH - doubles, the reaction rate doubles. When the concentration of CH 3 Br increases 1.2 times, the reaction rate increases 1.2 times. Write the rate equation for the reaction

Part a. Calculate the rate of change of CFC-12 (a chlorofluorocarbon gas) in the atmosphere between 1980 and 1990. Be sure to include a unit in your answer. Part b. What happens to the rate of change after 1990? Suggest a reason for the change in rate.

In a study of the conversion of methyl isonitrile to acetonitrile in the gas phase at 250 CH 3 NC(g) CH 3 CN(g) the concentration of CH 3 NC was followed as a function of time It was found that a graph of ln[CH 3 NC] versus time in seconds gave a straight line with a slope of - 4.17 * 10 ^ - 3 * s ^ - 1 and a y intercept of -4.05 Based on this plot , the reaction is order in CH 3 NC and the rate constant for the reaction is

A 10-mm cube of copper metal is placed in 250 mL of 12 M nitric acid at 25°C and the reaction below occurs: Cu(s) + 4H+(aq) + 2NO3(aq) → Cu2+(aq) +2NO2(g) + 2H20(I) At a particular instant in time, nitrogen dioxide is being produced at the rate of 2.3 × 10^-4 M/min. AT this same instant, what is the rate at which hydrogen ions are being consumed in M/min? Report you answer with 5 places past the decimal

Can someone please help? The question is:

Question 9 The chloride ion, Cl-C, is a major catalyst for ozone destruction. O True O False Question 10 Halons are considered a short-term replacement for CFC's to lessen the catalytic destruction of ozone. O True O False

The solid rocket propellant for the Space Shuttle (and Tomahawk Missiles) contain ammonium perchlorate, NH,CIO4(s) , and aluminum powder, Als) bound together with polymer (rubber) compound. The reaction that provides the thrust for these engines is given below: 6 NH4CIO4(s) + 10 Al(s) → 4 Al203(s) + 2 AlCl3(s) + 12 H2O(g) + 3 N2(9) ; AHº, rxn ΔΗΡ -289 kJ/mol 0.0 kJ/mol -1675.5 kJ/mol -705.6 kJ/mol -241.8 kJ/mol 0.0 kJ/mol Use the enthalpies of formation (AHº;) to calculate the change in enthalpy, AH® x, for this reaction (~ 6 mols of NH4CIO4(s). AH°, [ Select ] kJ/ 6 mol NH4CIO4(5) rxn

5. Another liquid, butanol, with the formula, C4H9OH, has a molecular weight of 74.0 g/mol and the molecular structure illustrated below: H HHH H-C-C-C-C-O-H H HHH Predict how butanol's evaporation rate should compare to ethanol's and methanol's evaporation rates. Explain your prediction using the molecular structures and weights of ethanol, methanol, and butanol, the types of intra- and inter- molecular bonds they make and the observations you made of ethanol and methanol in this investigation to support your prediction.

Determine the structures of the missing organic molecules in the following reaction: Y II OH X + H₂O H+ H* OH Note: Molecules that share the same letter have the exact same structure. In the drawing area below, draw the skeletal ("line") structures of the missing organic molecules X and Y. You may draw the structures in any arrangement that you like, so long as they aren't touching. Click and drag to start drawing a structure. C X :0 Ś m c+