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What is the [H30+] in the final solution after mixing 0.500 L solution of 0.100M HbrO4(aq) with 0.600L of 0.010M solution of NaOH(aq)?
Each of 2 front tire in the car is filled with a different gas. One tire contains 116g of helium, another tire has 160g of unknown gas. How many times heavier is a molecule of the unkown gas than an atom of helium.
The balloon is designed to continue its ascent to an altitude of 30 km, where it bursts, releasing a package of meteorological instruments that parachute back to Earth.
Thin layer chromotography it would be caffeine, but why? both have amide functional groups making them very polar, so why is caffeine more polar?
What mass of this substance must evaporate in order to freeze 170 of water initially at 23? (The heat of fusion of water is 334 the specific heat of water is 4.18 .
what is the balanced equation for the neutralization reaction between HI and Ba(OH)2 in aqueous solution
Determine the number of ammonia molecules in 4.85g of ammonia (NA= 6.022 x 1023 mol-1).
what is the total number of joules of heat energy absorbed when the temperature if 200.0g of water is raised from 10 degrees celcius to 40 degrees celcius.
The (-) enantiomer of a compound has a specific rotation [a]= -86 degrees. A sample of this pure enantiomer, when measured in a two dm sample tube, gives an observed rotation
To produce 225 moles of tetraphosphorus decoxide how many moles of oxygen are required?
A solution is prepared from 0.95 grams of H3PO4 ,(Phosphoric acid) and 1.15 grams of HClO4 (perchloric acid) in 150 mili litres of solution then determine how many milliliters of 0.425 M sodium hydroxide( NaOH) is needed.
How many kilograms of NH3 will be produced when 25.0 kg of CaCN2 react with excess water?
would a given amount of flourine react with different masses of the two hydrogen isotopes? Does this violate the law of definite proportions.
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