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Compute the volume in mL of a 1.1 M iron (II) bromide solution that contains 75.0 grams of iron (II) bromide (FeBr2). Round to 2 signings
A hydrochloric acid solution is standardized using 0.500g of sodium carbonate, Na2CO3. Find the molarity of the acid if 29.50mL are required to reach a phenolphthalein endpoint.
How do you find the limiting reactant in an equation. Also, why is the amount of grams of each reactant not the proper way to determine the limiting reactant
A disinfectant states that it will kill 99.9% of bacteria if left on for 45 minutes. What percentage of bacteria are killed if the disinfectant is left on only for 5 minutes
A fixed amount of gas at 25.0 °C occupies a volume of 8.66 L when the pressure is 629 torr. Use Charles's law to calculate the volume (L) the gas will occupy when the temperature is increased to 155 °C while maintaining the pressure at 629 torr.
Sketch a line bond structure for hydrogen phosphide and designate the formal charges where applicable.
air at 100 kpa and 27degc enters an isentropic compressor at a rate of 100 ls and leaves at 1000 kpa. determine the
A reaction has an activation energy of 32 kj/mol. If the temperature of the reaction doubles from 45 to 90 degrees by what factor will the ratio of the rate constants, k2/k1,change
The combination reaction between hydrogen with oxygen generates tremendous amount of heat. Depict a reaction profile for the reaction and explain whether it is exothermic or endothermic.
How many grams of aluminum metal must react with aqueous sodium hydroxide to produce 7.50 L of hydrogen gas at 12.5 degrees Celsius and 740 torr if the other product is aqueous Na3AlO3. 2 Al (s) + 6 NaOH (aq) ----> 3 H2(g) + 2 Na3AlO3(aq)
an experiment was performed to determine the amount of pyridoxine (B6) in a vitamin tablet. A tablet weighing 0.4006g was dissolved in 25mL of solution
calculate the entropy of a sample of a solid in which the molecules may be found in any one of four orientations with
assume that ethanol c2h5oh of 160 gramsnbspnbsp at the temperature of 27 degrees celsius is added with ethanol of 280
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