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A 25.72 mL sample of a 0.200 M solution of barium nitrate is mixed with 11.19 mL of a 0.250 M solution of potassium sulfate. Assuming that all ionic species are completely dissociated, what is the osmotic pressure of the mixture in torr?
Blood is essentially an aqueous solution but it must transport a variety of non polar substances hormones for example
The mass of a cube of iron is 292 g. Iron has a density of 7.87 g/cm3. What is the mass of a cube of lead that has the same dimensions.
3NaHCO3(aq) + H3C6H5O7(aq) → 3CO2(g) + 3H2O(l) + Na3C6H5O7(aq) How many moles of Na3C6H5O7 can be produced if one tablet containing 0.0119 mol of NaHCO3 is dissolved?
Derive the expression for the energy of a molecule, Consider the system of a gas adsorbed onto a surface. The gas can be treated as a two-dimensional ideal gas
Standard Electrode Potential (E), a) Write the equation for the cell reaction and indicate cathode and anode half-cells for the electrochemical cell formed from Mg/Mg2+ half-cell and In/In3+ half-cell.
If it takes 526 J of energy to warm 7.40 grams of water by 17 degrees Celsius, how much energy would be needed to warm 7.40 grams of water by 55 degrees Celsius?
The equation for the complete combustion of ethene (C2H4) is C2H4(g) + 3 O2(g) ==> 2CO2(g) + 2H2O(g) If 2.70 mol C2H4 is reacted with 6.30 mole O2,
Creatine is a by-product of muscle metabolism, and creatinine levels in the body are known to be a fairly realiable indicator of kidney function.
The pH of the solution at the equivalence point, The pH of the solution after 40.0 mL of HCl are added.
At constant pressure and 25 degrees celcius a sample of gas occupies 4.5 liters. At what temperature will the gas occupy 9.0 liters?
what is the pH of a solution obtained by adding 3.50g of HBr to 435mL of a 0.639M solution of HNO3?
a quantity of water is heated from 25.0 C to 36.4 C by absorbing 325 joules. what is the mass of the water?
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