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Siler metal crystalizes in a face-centered cubic lattice with L as the length of one edge of the unit cube. The center-to-center distance between nearest Silver atoms is....L/2 or 2 1/2L or 2L or L/2 1/2 or none of the above
calculate number of moles of anhydrous compound recovered. c- calculate number of moles of water lost from the hydrated compound.d- what is the formula of the hydrate?
a mixture of 82.49 g of aluminum picture 26.98 gmol and 117.65 g of oxygen picture 32.00 gmol is allowed to react.
If an unknown substance with the formula Ba(subscript x)Cl(subscript y)•(variable z)H(subscript 2)O was added to water and Na(subscript 2)HPO(subscript 4), the precipitate formed is Barium phosphate. What is the net ionic equation for this precipi..
Is smaller sample capacity the only disadvantage to smaller particle size of the stationary phase? Is that correct and/or is there any other disadvantage(s)?
0.12g of compound "Y" dissolves in 10ml of acetone @ 25 deg C and 0.85g of the same compound dissolves in 10 ml of boiling acetone. If 5g of compound "Y" were to be recrystallized from 75 ml acetone, what will be the next maximum amount of "Y" tha..
An element occurs as a mixture of isotopes. The atomic mass of the element is based upon
Calculate how much energy in the form of heat is available from 100mL of this mixture and compare it with the amount from pure gasoline. assume the densities of ethanol and gasoline are
nitrogen dioxide no2 cannot be obtained in a pure form in the gas phase because it exists as a mixture of no2 and n2o4.
Calculate the minimum mass of ethane that could be left over by the chemical reaction. Be sure your answer has the correct number of significant digits. 2 C2H6 + 7 O2 = 4 CO2 + 6 H2O
the thermite reaction is performed using 8.6g Fe2O3 and 1.8g powdered Al metal. which reactant is in excess and by how much?
For each of the following pairs of substance, predict which member of the pair will have the higher melting point, and explain why. a) NaCl and Cl2 b) SiO2 and CO2 c) Cu and CO d) NaF and MgO e) Na2) and SiC f) HCl and HF g) Ar and NO
what are the relative energies of the orbitals defined by n=4? if this atom is placed in a magnetic field, how would the relative energies of these orbitals change and why
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