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ethanol is often present in technical grade diethyl ether what effect would the use of technical grade diethyl ether
in lab a student wasnbspgiven a hydrated version of nicl2nbspas thenbspunknown the initial mass of the hydrated salt
an aqueous solution ofnbspperchloric acidnbspis standardized by titration with anbsp0137nbspm solution ofnbspsodium
what is the molality of the solution if 56g of nacl is dissolved in 500ml of water density of water is
a pi bond vb theory or a double bond vsepr theory does not affect the geometry of a moleculenbspa what is hybridization
consider the following reaction2naoh h2so4---gtna2so4 2h2o 786 g of h2so4 is present initially how many grams of naoh
you have a beaker with 100 00 ml of 0325 m naoh solution on your lab bench your lab partner pours 100 ml of 0825m naoh
a 100 g sample of a metal x that is known to form x2 ions was added to 0100 l of 0500 m h2so4 after all the metal had
the molecular formula of malonic acid is c3h4o4 if a solution containing 0762 g of the acid requires 1244 ml of 1174 m
the combustion of butane can be represented by the following equationc4h10nbspg o2g rarr co2g h2ogbalance the
when copper is heated with an excess of sulfur copperi sulfide is formedin a given experiment 189 g of copper was
write the balanced equation for the combustion of isooctane c8h18 to produce carbon dioxide and water use the smallest
a compound contains only carbon hydrogen and oxygen combustion of 2342 g of the compound yields 3433 g of co2nbspand
one of the major uses of sulfuric acid is the production of phosphoric acid and calcium sulfate the reaction
1nbspa weather balloon is partially filled with helium to allow for expansion at high altitudes at stp a weather
1 what is the total pressure in millimeters of mercury of a gas mixture containing argon gas at 025 atm helium gas at
you wish to determine the molarity of k ions in a 500 ml sample of k3po4 you completely react the potassium phosphate
questiona 0879g of a sample a cacl2h20k2c2o2 solid salt mixture is dissolved in 150ml of deionized water a precipitate
a wheel with a moment of inertia of 55 kgbullm2nbspis rotating with an angular speed of 54 rads a second wheel with a
what was the distance delta y that the ball traveled from the starting position at the clamp to the 140 cm photogate to
a hydrogen atom has its electron in thenbspnnbspnbsp2nbspstatea how much energy would have to be absorbed by the atom
a hydrogen atom has its electron in thenbspnnbspnbsp5nbspnbsplevel the radius of the electrons orbit in the bohr model
a hydrogen atom initially in thenbspnnbsp 2 level emits a photon and ends up in the ground statea what is the energy of
a neutral argon atom znbspnbsp18 nbspis in its ground state electronic configuration how many of its electrons are in
find the heat required for 5-kg water to be heated from 30 celsius degree to 50 celsius degree express the temperature