Chemistry, 13.09.2019 20:10 cvbnkifdfg
Blood alcohol concentration (bac) is a measure of alcohol in your body, expressed as grams of alcohol per 100ml of blood. for a bac of 0.05, every 100ml of your blood contains 0.05 grams of alcohol. your bac can be measured through your breath, blood, and urine. drivers with an open licence have to keep under a bac of 0.05.
scientists estimate the mass of blood in a human body to be approximately 8 percent of body weight. if we assume that 17 % of the alcohol that a person drinks from beer goes into the bloodstream, how many litres of beer can an 71 kg person drink to get a bac of 0.05? the alcohol content of beer is 6 % volume, and the blood density is 1025kg/m3, the alcohol density is 789 kg/m3.
Answers: 1
Chemistry, 21.06.2019 12:50
Use the standard enthalpies of formation for the reactants and products to solve for the δhrxn for the following reaction. (the δhf of c2h4 is 52.26 kj/mol, co2 is -393.509 kj/mol, and h2o is -241.818 kj.) c2h4 (g) + 3o2(g) 2co2 (g) + 2h2o(g) δhrxn = the reaction is .
Answers: 3
Chemistry, 22.06.2019 11:00
Which statement is true about hcl? (5 points) select one: a. it is a salt because it increases the concentration of metallic ions. b. it is a salt because it is formed by the reaction of an acid and a base. c. it is an acid because it increases the concentration of hydroxyl ions. d. it is an acid because it increases the concentration of hydronium ions.
Answers: 1
Chemistry, 22.06.2019 17:10
)benzene and toluene form nearly ideal solutions. consider an equimolar solution of benzene and toluene. at 20 °c the vapour pressures of pure benzene and toluene are 9.9 kpa and 2.9 kpa, respectively. the solution is boiled by reducing the external pressure below the vapour pressure. calculate (i) the pressure when boiling begins, (ii) the composition of each component in the vapour, and (iii) the vapour pressure when only a few drops of liquid remain. assume that the rate of vaporization is low enough for the temperature to remain constant at 20 °c.
Answers: 1
Chemistry, 22.06.2019 17:20
Which of these features are formed when hot groundwater is forced out through cracks in the earth's surface?
Answers: 2
Blood alcohol concentration (bac) is a measure of alcohol in your body, expressed as grams of alcoho...
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