Determine the lime and soda ash dose
Determine the lime and soda ash dose in mg/L as CaCO3 to soften the following water to a final hardness of less than 120mg/L as CaCO3.
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C3H8(g)+5O2(g) > 3CO2(g)+4H2(g) + O(g) In the combustion of 250g of propane with an excess of hydrogen, what volume of carbon dioxide is produced at 290k and 1.5atm
At the start of the reaction there are 0.714 mole of H2, 0.984 mole of I2, and 0.886 mole of HI in a 2.20 L reaction chamber. Calculate the concentrations of the gases at equilibrium.
Trigen Corp. management will invest cash flows of $1,039,626, $326,251, $905,760, $818,400, $1,239,644, and $1,617,848 in research and development over the next six years. If the appropriate interest rate is 8.16 percent, what is the future value
Approximately how many atoms would it take to make the distance 1 cm from end to end. Round to the nearest whole number, do not include units or commas. do not use scientific notation.
Ca(s) + Cl2(g) = CaCl2(s) ΔH = -796 kJ mol-1 What will be the enthalpy change (to 2 significant figures) for the reaction when 4.0 g of calcium metal reacts with chlorine gas at constant pressure? The relative atomic mass of calcium is 40. &Del
A certain mass of oxygen was collected over water when potassium chlorate was decomposed by heating. The volume of the oxygen sample collected was 720. mL at 25.0 oC and a barometric pressure of 755 torr. What would the volume of the oxygen be at
Calculate the mass of one atom of helium (atomic mass=1.01 amu). Calculate the wavelength of this atom if it is traveling at .8c
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Evidence of Cultural Impact: The cultural impact of economic factors can be observed through specific practices and initiatives within the NSHA:
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Point of use cleaning of used instruments MUST be performed immediately following the procedure in the following location