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Small quantities of oxygen can be prepared in the lab by heating potassium chlorate, KCIO3(s) 2KClO3 -> 2KCl+3O2 Calculate how many grams of O2(g) can be produced from heating 59.4g of KClO3(s)
The half life of polonium-210 is 138.4 days. How many milligrams of polonium-210 remain after 415.2 days if you start with 2.0 mg of the isotope?
a helium balloon is held at 1.2 atm of pressure and 300 K. If the pressure on the balloon increases to 4.2 atm, to what temperature must the balloon be heated , to maintain its same volume?
Ammonium hydrogen sulfide decomposes according to the following reaction, for which Kp = 0.451 at a given temperature. If 55.0 g of NH4HS is sealed inside a 5.00 L container at this temperature, calculate the partial pressure of NH3(g) at equilibr..
A feed containing 15% by weight of solids is to be concentrated to 40 % solids using a double effect backward feed evaporator. The first effect is heated by steam at 413 K.
The density of liquid oxygen at its boiling point is 1.14 kg/L , and its heat of vaporization is 213 kJ/kg . How much energy in joules would be absorbed by 4.0 L of liquid oxygen as it vaporized?
A solution of salt (molar mass 90 g mol -1) in water has a density of 1.29 g/mL. The concentration of the salt is 35% by mass.
Gaseous ammonia reacts with oxygen gas to produce gaseous nitrogen monoxide and liquid water. If 750 grams of ammonia and 750 grams of oxygen gas were mixed
How much heat (in J) is evolved or absorbed when a 36.9 g sample of water (specific heat = 4.18 J/(g K)) cools from 87.7oC to 79.2oC
If atmospheric pressure suddenly changes from 1.00 atm to 0.898 atm at 298 K, how much oxygen will be released from 3.10 L of water in an unsealed container?
In solution in 6EB in Atkins 9th edition is not clear to me. The equation for the location of partile in the box is different from the one that is in the book.
The carbon atom model has an additional rotational axis of symmetry that is NOT threefold. Use an arrow to show the location of one of these in a figure of the carbon atom model.
0.80 g of hydrogen chloride (HCl) is dissolved in water to make 5.5 L of solution. What is the pH of the resulting hydrochloric acid solution?
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