What is the minimum concentration
What is the minimum concentration of {rm{OH}}^ - required to dissolve 2.0×10-2 mol of {rm{Zn(OH)}}_2 in a liter of solution?
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A 952 cm3 container of gas is exerting a pressure of 108 kPa while at a temperature of 48 oC. Calculate the pressure of this same amount of gas in a 1236 cm3 container at a temperature of 64 oC
Calculate the energy released when a 28.9 gram piece of copper is cooled from its melting point of 1083 degrees C to 25.0 degrees C. The specific heat of copper is .385 J/g degrees C.
The following reaction has achieved equilibrium. Predict the effect on the formation of phosphorous pentachloride (increase, decrease or no effect) for the stated changes to the system:
Silver chloride often used in silver plating contains 75.27% Ag. Calculate the mass of silver chloride in grams required to make 4.0 g of silver plating.
Linuron or 1-Methoxy-1-methyl-3-(3,4-dichlorophenyl)urea, is a biologically active compound of commercial importance. Write down the chemical structure of linuron.
A raft is made of 11 logs lashed together. Each is 35 cm in diameter and has a length of 5.6 m. How many people can the raft hold before they start getting their feet wet, assuming the average person has a mass of 70 kg? Do not neglect the weight
A 45.5 g sample of copper at 99.8 degrees celsius is dropped into a beaker containing 152 g of water at 18.5 degrees celsius. What is the final temperature when thermal equilibrium is reached?
Does doubling the volumes of acid and base in a neutralization reaction double the amount of heat released? And also does doubling the concentrations (but not the volumes) of acid.
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