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A. How many milliliters of a 0.72 MHCl solution do you need to obtain 0.0032 mol of HCl?
B. A flask containing 470 mL of 0.50 M H2SO4 was accidentally knocked to the floor.
How many grams of NaHCO3 do you need to put on the spill to neutralize the acid according to the following equation?
H2SO4(aq)+2NaHCO3(aq)---->Na2SO4(aq)+2H2O(l)+2CO2(g)
Would the organisms find the environment in the untreated water more favourable, less favourable, or identical (from an energy standpoint) after equilibration with air. Explain briefly
Calculate the pH during the titration of 10.00 mL of 0.400 M hypochlorous acid with 0.500 M NaOH. First what is the initial pH (before any NaOH is added)?
The element is so highly unstable that no observations of its properties have been possible. Based on its position in the periodic table, propose two different reasonable valence electron configurations for this element.
The energy required to ionize boron is 801 kJ/mol. What minimum frequency of light is required to ionize boron?
Unfortunately, the airbag explodes and your colleagues laugh at your inability to account for non-ideal or real gas behavior (van der waal). Which correction, attractive forces or molecular volume, is primarily responsible for your air bag blowing..
How reliable is the perfect gas law in comparison with the van der Waals equation? Calculate the difference in pressure of 10.00g of CO2 confined to a volume of 100cm3 at 25 degrees Celsius between treating it as a perfect gas and a van der Waals ..
State Lewis (dot) formulas for the following and indicate their shape whether it is linear, trigonal, pyramidal, bent, or tetrahedral and to tell whether it is polar.
What is the direction of the electron flow in the electrical circuit connecting the electrodes - What is the direction in which nitrate anions migrate?
Calculate the concentration of an aqueous solution of Ca(OH2)that has a pH of 12.57? Express your answer using two significant figures.
The Neumann-Kopp law is a generalized experimental finding that the heat capacity of a substance can be well approximated by the sum of the heat capacities of the constituent elements, weighted by their contribution to the total composition.
a high school girl was getting ready for a big date but discovered with horror that her silver necklace was tarnished.
helium gas at 25 oc filled a balloon to a volume of 2.25 l. what would the volume of this balloon be when cooled at
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