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Determine the ion concentrations, the pH, and the POH of a 0.050M solution of NaOH. NaOH is a strong base.
The elements silver, molybdenum, and sulfur combine to form Ag2MoS4. What is the maximum mass of Ag2MoS4 that can be obtained if 8.63 g of silver
A gas sample has an original volume of 680 ml when collected at 720 mm and 28°C. What will be the volume of the gas sample if the pressure increases to 820 mm and the temperature increases to 55°C?
Joseph places a glass containing 200 grams of water at 20 degrees Celsius into a refrigerator. It then loses 11.7 kJ as it cools to a constant temperature. What is the new temperature
When 4.00 g of methylhydrazine is combusted in a bomb calorimeter, the temperature of the calorimeter increases from 25 C to 39.5 C. The heat capacity of the calorimeter is measured to be 7.794 kJ/C. Calculate the heat of reaction for the combusti..
Explain what are the concentrations of H3Cit, H2Cit-, and HCit2- in a sample of lemon juice that has a pH of 2.30 and a total concentration of the four citrate-containing species of .350 M? Presume that [Cit3-] is 0. Explain what is the concentrat..
a solution containing 4.2 g of KOH and Ca(OH)2 is neutralised by an acid . if it consumes 0.1 equivalent of acid , calculate composition of sample in solution.
gold and silver both have the fcc crystal structure and ag forms a substitutional solid solution for all concentrations
The density of palladium(Pd) is 12.0 g/mL at 20 degree Celsius temperature and the density is 11.0 g/mL 1550 degree Celsius temperature . What is the change in volume (V) if tempreture raises of 4.21 kg Pd from 20°C to 1550°C.
The solubility of calcium chromate is 1.56 ×10-3 g/100 mL of solution. What is the Ksp for CaCrO4?
An experiment was done utilizing a simple spectrophotometer. An aspirin tablet was added to 2mL of 1 M sodium hydroxide solution and 10mL of water, and brought to boil to dissolve the tablet. The solution was then diluted to 100mL with water. 1.00..
What is proton pump, proton matrix, proton gradient, and proton motive force? Please give simplies answer as possible.
Explain what mass of sodium phosphate would have to be added to 1.0 L of this solution to completely eradicate the hard water ions? Presume complete reaction.
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