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1.40 M solution of 75.0 mL is diluted to a total volume = 278 mL. A 139-mL portion of that solution is diluted by mixing 117 mL of H2O. Determine the final concentration? (Assume the volumes are additive.)
using a sample of Ne gas of 30.1-g exerts a certain pressure in a container that has fixed volume. Determine What mass of Ar is needed to exert half the pressure (at the same conditions of volume and temperature)?
A zero-order reaction has a constant rate of 2.40×10-4 M/rm s. If after 80.0 seconds the concentration has dropped to 7.00×10-2 M,
If I have 7.0 moles of gas at a pressure of 0.10 atm and at a temperature of 50.1 degrees C in a balloon, what is the volume of the balloon? (Round to one decimal place.)
explain what would happen if you failed to achieve complete precipitation of the Lead in procedure 2(separation of silver and Lead ii ions as chlorides), Explain how this might impact your results
How do you determine the charge of an electron when given the number of moles of electrons and the amount of electricity passed through the circuit?
Draw the structural formula for 3-methylhexane and 2-butanol and identify the chiral carbon and the four "groups" attached to the chiral
calculate the osmotic pressure in mm Hg of 6.00 L of an aqueous 0.889 m solution at 30.°c, if the solute concerned is totally ionized into three ions
What is the molarity of an HCl solution if 22.3 mL of the solution is required to react with 0.266g of Na2CO3?
what is the molality of a solution of 10g benzophenone and 1mL of cyclohexanone
Determine hydroxyl and hydrogen ion concentration in this solution. (if Ka for ammonium ion = 5.0 x 10^-10.)
A 10 mL aliquot of a 10 M solution diluted to 250 mL A 25 mL aliquot of a 10 M solution diluted to 250 mL A 57 gram beaker that weighs 82 grams after NaCl is added transfers all of the NaCl into a 100 mL volumetric flask and dilutes it to the mark..
find the electronic configuration for ionization energies of magnesium the orbital number in which the electrons are
The gas above the top liquid is at an absolute pressure of Pg. Furthermore, the densities and heights of liquid 1 and liquid 2 are P1 and P2 , and L1 and L2 , respectively. In terms of these given symbols, waht is the absolute pressure at the bott..
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