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An industrial vat contains 2,500 liters of an acidic aqueous solution with a pH of 3.5. How many grams of NaOH need to be added to raise the pH to 4.3?
Determine how much heat (in kJ) is needed to warm 12.0g of ice, that is initially at -10.0 ° C, to steam at 114.0 ° C? The heat capacity of ice is 2.09 J/g⋅ ° C and that of steam is 2.01 J/g⋅ ° C.
The solubility product of Mg(OH)2 is 1.2E-11. What minimum OH- concentration must be attained (for example, by adding NaOH) to decrease the Mg2+ concentration in a solution of Mg(NO3)2 to less than 1.9E-10 M?
Suppose that 160 g of ethanol at 30?C is mixed with 230 g of ethanol at 76?C at constant atmospheric pressure in a thermally insulated vessel.
A gas at 89 degrees celcius occupies a volume of 0.67 L. At what kelvin temperature will the volume increase to 1.12 L. ?
2.00 moles of a gas occupies 62.2 L at a particular temperature and pressure. Its density is 0.900 g/L. The standard molar volume is 22.4 L/mole. What is the molar mass.
if 525 mL of gas at 25 degrees celcius is heated to 50 degrees celcius at constant pressure, calculate the new volume.
A 4.867 g sample of a monoprotic acid was dissolved in water. It took 30.24 mL of a 0.1578 M NaOH solution to neutralize the acid. Calculate the molar mass of the acid.
Why is molarity not the best means of stating acid strength? Is molarity the most representative form of quantifying acids and bases?
Calculate how many atoms of potassium A three mole sample of K2S would have and Calculate the current for diffusion-controlled electrolysis
Compute the final x value using quadratic formula If two moles of caron mono oxide gas and one mole of chlorine gas are placed in the vessel and heated to 500 Kelvin temperature to start the reaction?
The standard molar enthalpy of formation of ClF3 is -405 kJ. 1/2 Cl2(g) + 3/2 F2(g) → ClF3(g)
What mass of methane, CH4, is contained in a 500.-mL sample of CH4 at STP?
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