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A motorist traveling at 15 m/s encounters a deer in the road 38 m ahead. If the maximum acceleration the vehicle's brakes are capable of is -6 m/s 2 , what is the maximum reaction time of the motorist that will allow her or him to avoid hitting the deer? Answer in units of s.
a flask holds 100ml. when empty is mass is 125.54g. when filled with a solution of potassium bromide the mass of the
What is the total number of valence electrons that must be shown in the Lewis structure for magnesium fluoride B. How many dots would be shown in the Lewis symbol for phosporus. Use a number, not a word.
Find the pH of a 0.130 M solution of a weak monoprotic acid with a Ka value of 1.6 *10(to the power of -6)
The first step of the Wittig reaction occurs through what kind of mechanism? A. acid-base B. SN2 C. rearrangement D. nucleophilic acyl substitution
Explain what is the value of [O2(aq)] for water saturated with a mixture of 50% O2, and 50% N2 by volume at 25 Celsius and a total pressure of 1.00atm
Question- Hydrochloric acid is usually purchased in a concentrated form that is 37% HCL by mass and has a density of 1.20g/ml. describe exactly how you would prepare 2.85l of 0500M HCL from the concentrated solution
Silver tarnish is the result of silver metal reacting with sulfur compounds, such as H2S, in the air. The tarnish on silverware (Ag2S) can be removed by soaking in a solution of NaHCO3(baking soda) in a basin lined with aluminum foil.
Calculate the molarity of the barium hydroxide solution if 50.00 mL of the barium hydroxide solution requires 37.42 mL of 0.1021 M hydrochloric acid
When 1.550 g of liquid hexane (C6H14) undergoes combustion in a bomb calorimeter, the temperature rises from 25.87 ºC to 38.13 ºC. Find ?E rxn for the reaction in kJ/mol hexane. The heat capacity of the bomb calorimeter, determined in a separate e..
MES (2-(N-Morpholino) ethanesulfonic acid) is a common buffer utilized in biochemistry labs to stabilize proteins. The pKa for MES is 6.09. a. Explain what is the pH of 1 liter of a 200mM MES aqueous solution
Gas A2 reacts with gas B2 to form gas AB at a constant temperature. The bond energy of AB is much greater that that of either reactant. What can be said about the sign of pH, pSsurr, and pS
When a catalyst is added the reaction 2SO2(g)+O2(g)?2SO3(g) takes place. At equilibrium the total pressure is 4.05atm . Find the value of Kc.
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