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IF a liquid fuel mixture contains 31.35% (C6H14) hexane, 14.70% (C7H16) heptane, as well as the rest octane (C8H18).
You need to make 50 agar plates. Each plate holds 30mls. Final agar consentration is 2.5%. How much agar powder do you need
1. A 15.0-mL volume of 0.5000 M KOH (a strong base) is added to 25.0 mL of a 0.400 M solution of weak monoprotic acid (HA). The pH of the resulting buffer solution is 3.62. Compute the acid ionization constant (Ka) of the weak acid.
draw the lewis structure of CCL2S
suppose you have a calorimeter that contains 100.0 grams of water at an initial temperature of 25 c. a salt 2.19 g
what is the minimum amount of 6.0 M H2SO4 neccessary to produce 23.5 g of H2(g) according to the following reaction? 2Al(s) +3H2SO4(aq) --> Al2(SO4)3(aq) + 3H2(g)
drinking water was determined in seven replicate measurements with the following results (in ppb): 1.84; 1.92; 1.94; 1.92; 1.85; 1.91; 1.97. What is the standard deviation of these measurements in ppb?
solute a has a partition coefficient of 3 between toluene and water with 3 times as much in the toluene phase. suppose
Number of protons & the number of neutrons in the nucleus of the element boron and potassium and the number of electrons in their 1st & 2nd quantum shells?
You are the Science Officer on the Starship Enterprise and you come across a new planet. You find that no light with wavelength less than about 650 nm reaches the surface of the planet.
What is the Cl ? concentration just as Ag2CrO4 begins to precipitate when 2.0 M AgNO3 is slowly added to a solution containing 0.048 M Cl ? and 0.048 M CrO42-
how would you make a 50.0 mm mops buffer pka7.15 at ph7.00 using a 500 mm sol of mops acid and a 1.00 m sol of naoh?
Consider the synthesis of methane from hydrogen gas and carbon at 1370mmHg and 450 C.
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