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Identify the lattice type and all symmetry operations that are indicated by the space group symbol for the orthorhombic pbc21. Describe each of these fully.
When 24 copper pennies are submerged in water, the pennies displace 8.26 cm3 of water. If the combined mass of the pennies is 73.86 g, what is the density of copper?
If a combination of helium and argon expands from 66.0L to 86.0L under a constant pressure of 13.0 atm, calculate the work done by the gas
Write and solve balances about the eggs sorter on total eggs and broken eggs. How many "large" eggs leave the plant each minute
The equilibrium constant for the neutralization reaction of NH3 with an HCl solution at 298 K is: Given Kb=1.8x10^-5
For a particular orbital, as one goes away from the nucleus along the z-axis, the probability desity decreases to zero, then increases, and finally decreases without increasing a second time. This is consistent with
A 295 mL stock solution contains 2.3 M Ca(CN)2. When 100 mL of the stock solution is diluted to 120 mL, how many moles of CN- ions will be contained in the dilute solution?
Write balanced reaction equations for the two steps in the synthesis of 2-butoxynaphthalene.
The pH of a saturated solution of nickel hydroxide, Ni(OH)2, is 8.83. Calculate the Ksp for nickel hydroxide.
how many grams of magnesium metal will react completely with 4.8 liters of 5.0 m hcl? show all of the work needed to
The first-order decomposition of S2O6(g) to form SO3(g), has a half-life of 1.262 x 10-3 s at 45oC. How long will it take for 60% of a 0.34 M sample to decompose at 45oC
Write the step-wise acid-base reaction of the amino acid proline starting from its fully deprotonated form. Write the correct equilibrium constant expression for each reaction and indicate its numerical value
the volume of NaOH needed to neutralize it and repeats the process several times to determine the concentration of the NaOH solution. She calculates the concentration and uncertainty in the concentration of the NaOH from the titration data.
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