A complex cystic mass is demonstrated in the spleen with posterior dirty shadow in a febrile patient. What is the most likely diagnosis?

Prereq check: another u-sub example and reversing the power rule.  Remember we often need to reverse the power rule when integrating, so for example we should rewrite the following as a power function:

Pre-req check: Let’s explore ln(x) a bit more and get some more integration practice.  Recall

What is the abbreviated orbital diagram for Cr⁺¹?

Which compound/element exhibits both covalent and ionic bonds? 

Choose the correct description for sulfate ion (SO₄²⁻):

The complete combustion of acetone (C₃H₆O) is shown below: C3H6O+4O2→3CO2+3H2O Using the bond enthalpies provided, estimate the heat of combustion (ΔH°) of acetone in kJ/mol. Bond Enthalpy (kJ/mol) C–H 412 C–C 348 C=O (in ketones) 743 O=O 498 C=O (in CO₂) 799 O–H 463

Arrange the following set of elements in order of decreasing atomic radius: Ge, Pb, Sn.

What is the wavelength in nm of a photon of light with an energy of 1.5 × 10-19 kJ?  

Which best describes ammonia (NH₃)?