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24 Cards in this Set
- Front
- Back
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Dilution equation
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m1v1=m2v2
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what mass of K3PO4 do you need to make 250ml of a .5 M solution?
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27 g K3PO4
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If you have 12 M HCl and you need 500.00 mL of .10 M, what volume of the concentrated acid do you use? How much water?
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4.1 mL of 12 M HCl
495.8 mL water |
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If you take 10.00 mL of an acid and dilute it to 250 mL and the diluted acid is found to have a concentration of .125 M, what was the original concentration?
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3.13 M
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If 125.00 mL of HI are titrated with 14.33 mL of .25 M KOH, what is the concentration of the acid?
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.14 M
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If the 10.00 mL of strontium hydroxide gets titrated with 17.85 mL of .10 M hydrobromic acid, what is the concentration of the base?
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.089 M Sr(OH)2
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Write the raction when Uranium-238 alpha decays.
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238/92 U ----> 4/2 alpha +234/90 Th
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Write the reaction when Neptunium-239 beta decays
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239/93 Np ------> 0/-1 Beta + 239/92 U + antineutrino
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potassium-40 electron captures
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40/19 K + 0/-1e ---> 40/18 Ar
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Write the reaction when sodium-22 emits a positron
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22/11Na ----> 0/1 e +22/10 Ne + neutrino
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Write the decay series when Californium-252 undergoes alpha, alpha, beta, alpha, beta decay.
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252/98 Cf--->4/2 alpha+248/96 Cm---> 4/2 alpha+ 244/94 Pu--->0/-1e+244/95 Am--->4/2 alpha + 240/93 Np --->0/-1e + 240/94 Pu
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distinguish between fission and fusion
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fission. splitting of heavy nuclei
fusion. union of light nuclei |
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If 48.1 grams of a radioactive isotope decays to .188 grams in 1250 years. What is the half-life?
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156.25 years
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how do you determine which type of decay an isotope will undergo?
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Neutron to proton ratio and overall mass determines overall decay type.
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what is nuclear binding energy?
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Energy required to separate a nucleus into its individual nucleons
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What is the band (belt/zone) of stability?
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the area within which all stable nuclei are found. it ends at number 83 Bismuth
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list the names and formulas for the seven gas laws.
i listed 8 i think |
ideal gas law PV=nRT
boyle's law p1v1=p2v2 charles' law v1/t1=v2/t2 gay-lussac's law p1/t1=p2/t2 dalton's law of partial pressures pt=p1+p2+p3+... Avogadro's law: v1/n1=v2/n2 graham's law: r1/r2=sqrtm2/sqrtm1 combined gas law p1v1/t1=p2v2/t2 |
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what is the value with units of the gas law constant
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.0821 (L*atm)/(mol*K)
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what are two assumptions about an ideal gas?
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molecules are constantly moving randomly and there are no attractions or repulsions between molecules or surroundings
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800 mmHg=?kPa
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107 kPa
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With which two gas laws is there commonly a water vapor correction.
THIS IS NOT A DEFINITELY CORRECT ANSWER AS OF TODAY 8/12/13 |
dalton's law of partial pressures
and the ideal gas law |
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what are several things that can be found on the electromagnetic spectrum?
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electromagnetic radiation, uv rays, x rays, microwaves, radiowaves, gamma rays, visible region, wavelength in meters 10^-11, 10^3, Frequency S^-1, 10^4, 10^20
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what are the four quantum numbers and what do they mean?
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-Principle quantum number: (n): main energy level (1,2,3...)
-Azimuthal: (l): shape of orbital (l=n-1). When l=0, s When l=1, p when l=2, d when l=3, f -Magnetic: (m(sub)l): 3D orientation (m=-l to +l) for example: s has one orientation=0 d has three orientations= 0,1,-1 p has five orientations= 0, -1,-2,1,2 f has seven orientations= 0, -1,-2,-3, 1, 2, 3 -spin (m(sub)s)- 2 possible spin states per electron spin up (+1/2) and spin down (-1/2) |
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WHAT ARE THE FOUR ORBITAL SHAPES, THE NUMBER OF ORBITAL PATHS PER SHAPE, AND THE MAX NUMBER OF ELECTRONS PER SHAPE?
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s sphere has 1 paths per shape and max 2 electrons
p peanut has 3 paths per shape and max 6 electrons d double peanut has 5 paths pershape max 10 electrons f flower has 7 paths per shape max 14 electrons |
