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How many grams of sodium azide are needed to fill a 30*30*25cm bag to a pressure of 1.30atm at 21.0C? 2NaN3=3Na+2N2
How many liters of NO(g) are produced when 0.85L of 2.00M HNO3 solution is added to 216 of Ag according to the equation. Which reactant is the limiting reactant?
The evaporation of water H2O(l) ->H2O(g) is endothermic: Change in T degree +44.01 kJ Determine the minimum mass of water (in ) has to evaporate to absorb 183 joules of heat?
what molecule would give the following mass spec data. this molecule shows three significant fragment ions. Alpha-fragmentation forms the m/z =59 base peak
This strontium isotope is radioactive, with a half-life of 28.1 yr. Calculate how long it will take for 0.860 g of the isotope to be reduced to 0.170 g by decay
Write the balanced equation for the reaction of each hydrocarbon (cyclohexane, methylcyclohexane, toluene, ethylbenzene, isopropylbenzene, and tert-butylbenzene) with bromine.
How many possible isomers could exist for diacetylferrocene? Explain. Calculate the volume of 3M aqueous sodium hydroxide needed to neutralize the acetic and phosphoric acids in the synthesis of acetylferrocene?
what is the energy uncertainty associated with a short pulse of laser light that lasts 4.8fs
Wriite an equation for a substitution reaction between 2-bromopropane and potassium iodide. In this case, do not include the state
Which salt is most soluble in water? chromium (III) nitrate, silver iodide, barium phosphate, or calcium carbonate.
Glucose is pumped into some animal cells by a symporter powered by simultaneous entry of Na+. The entry of Na+ provides a free-energy input of 10.8 kJ/mol under typical cellular conditions (external [Na+] = 143 mM, internal [Na+] =14 mM
Rubidium has two naturally occurring isotopes with the following masses and natural abundances, Calculate the atomic weight of rubidium.
Calculate the pH for the soluton after addition of solid sodium formate to cause the formate ion (CHOO-) to increase to 0.2 M
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