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The insect repellent DEET is an amide that can be made from 3-methylbenzoic acid and diethylamine. A 5.6 fl oz can of DEET repellent contains 25% DEET by mass (1 qt = 32 fluid ounces). Assume that the density of DEET solution in a can is 1.0 .g/ml
How many molecules of DEET are in one spray can?
Trimethylamine (CH3)3N is a substance responsible in part for the smell of fish. it has a boiling point of 3.5 degrees c and a molecular weight of 59.1.
What is the total quantity of heat required to do this? The melting point of Pb is 327.4 degrees celsius; its heat of fusion is 4.774 kJ mol-1; its average heat capacity in the temperature range from 51 to 327.4 deg. celsius is 0.134 J g-1K-1.
How many moles of luminol are present in 2.00 L of the diluted spray?
octane has a density of 0.692gml at 20 c. how many grams of o2 are required to burn 1.00 gal of
At 745K, the reaction 2AB(g) ? A2(g) + B2(g) has a Kc = 2.00 x 10-2. If a mixture of 1.00 mol AB and 1.00 mol A2 is sealed into a 10.0 L flask and heated to 745K, what will be the equilibrium concentration of B2
What is the pH of a saturated solution of Ba(OH)2 at 25oC? For Ba(OH)2, Ksp=5.0x10-3.
A student places 2.0 moles of methylamine in 500ml of water. what is the pH? the Kb of methylamine is 4.4x10^-4.
Chromic acid is a diprotic acid H2CrO4 with Ka1 = 0.18 and Ka2 = 3.2 x 10-7. A solution of potassium chromate is prepared at pH 5.43. Calculate the fraction of the total chromate in this solution that is present as the chromate ion CrO42-.
What is the mass (in kg) of helium if it filled a square room if the room has walls that are 9.5 feet high and 9.5 long and the density of helium is 0.18 g/L
Its thermal decomposition can be represented by: 2Al2O3 (s) = 4Al (s) + 3O2 (g) deltaHrxn = 1676 kJ. If aluminum is produced this way, how many grams of aluminum can be formed when 1.000 x 10^6 J of heat is transferred
determine the limiting excess reagent amp percent yield of the reaction.aspirin acetylsalicylic acid c9h8o4 can be made
which provides better protection against corrission :painting a metal or galvanizing a metal. justify your prediction
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