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2 Al(OH)3 + 3 H2SO4 → Al2(SO4)3 + 6 H2O. How many grams of Al2(SO4)3 are generated when 152 g of H2SO4 reacts?
Determine the change in Ssys for the process if the specific heat capacity for ethanol = 2.42 J/g K. express your answer in units of J/K
In a second experiment, I(electric current) broke down a sample of H 2 O into 1.45 grams of hydrogen and 11.51 grams oxygen. Are these results reliable with the law of exact extent?
Fe3O4(s) + 4CO(g) --> 4CO2(g) + 3Fe(s). In this reaction, if 335.2 g Fe3O4 is reacted with excess CO, what mass of CO2 will be produced.
If the solution is 40.0% K2CO3 by mass, what is the predicted freezing point of this solution in °C, assuming full ionization.
We have a 100mL 0.2M AgNO3 solution and a 100mL 0.2M CH3COONa solution. Please describe how to prepare a 35 mL mixture solution containing 60mM AgNO3 and 140mM CH3COONa?
Cyanogen is a gas which contains 46.2 % C and 53.8 % N by mass. At a temperature of 25oC and a pressure of 750 mmHg, 1.50 g of cyanogen occupies 0.714 L.
A sunscreen preparation with a density of 2.82 g/mL contains 3.55% by mass zinc(II) oxide. Each tube is filled with 185.0 mL of sunscreen. If you are the manufacturer and use 5.00 lb of zinc(II) oxide.
How many grams of Oxygen gas are required if It is desired to inflate a baggie with 842 milliliters volume by filling it with O2 gas at 1.21 atm pressure and a 306 K.temperature ?
What volume of N2O, collected over water, at a total pressure of 94kpa and 22 Celcius, can be produced from 2.6g of NH4NO3.
The average person generates about 2500 Kcal of heat a day. How many kilowatt-hours of energy is this? If walking briskly dissipates energy at 500 W, what fraction of the day's energy does walking one hour represent.
1g soil has been spiked with 0.1ml of 100 ppm (v/v) trimethylbenzene and subsequently extracted with 250 mL pentane. The extract is then measured with GC-FID.
how much of this chemical would have been measured? Express in terms of measured concentration C (mg/litre) of the filtered sample?
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