General Chemistry 1

Find the enthalpy of reaction, $\triangle$H$_{rxn}$ , for the combustion of sugar (there is usually a table of enthalpies of formation in the back of chemistry textbooks)

C$_6$H$_{12}$O$_6$ (s) + 6 O$_2$ (g) $\longrightarrow$ 6 CO$_2$ (g) + 6 H$_2$O (l)

An infectious organism can be completely destroyed by irradiation of UV light with a wavelength of 254 nm. What is the frequency of this radiation?

Calculate the energy of a mole of photons of blue light ( 4.00 x 10$^2$ nm )

Rank the following wavelenths in order from lowest energy to highest energy: (Hint: for comparison, units should be the same)

500 nm

190 nm

250 mm

320 $\mu$m

When n = 7, list all valid sets of quantum numbers.

What is the electron configuration of the following elements:

H

He

B

Ne

Sc

Zn

Give the electron configuration, the number of valence electrons, and also state whether the element is diamagnetic or paramagnetic:

Fe

O

Ar

Al

Give the electron configuration, the number of valence electrons, and state whether the ion is diamagnetic or paramagnetic for the following ions:

Mg$^{+2}$

O$^{-2}$

Cl$^{-1}$

Al

Give the electron configuration, the number of valence electrons, and state diamagnetic or paramagnetic for the following elements and ions:

Cr

Cr$^{+2}$

Cu

Cu$^{+1}$

Provide the lewis dot structure, molecular geometry, orbital geometry, polarity, and the hybridization of CO$_2$

Provide the lewis dot structure, molecular geometry, orbital geometry, polarity, and the hybridization of NH$^{+4}$

Provide the lewis dot structure, molecular geometry, orbital geometry, polarity, and the hybridization of IF$^{-1}_4$

Provide the lewis dot structure, molecular geometry, orbital geometry, polarity, and the hybridization of SO$_2$

Provide the lewis dot structure, molecular geometry, orbital geometry, polarity, and the hybridization of SeCl$_4^{-2}$

Provide the lewis dot structure, molecular geometry, orbital geometry, polarity, and the hybridization KrF$_2$

Provide the lewis dot structure, molecular geometry, orbital geometry, polarity, and the hybridization PO$_3^{-3}$

Provide the lewis dot structure, molecular geometry, orbital geometry, polarity, and the hybridization SO$_3$

Provide the lewis dot structure, molecular geometry, orbital geometry, polarity, and the hybridization ClO$_3^{-1}$

List the intermolecular forces present in CH$_2$OH, Ar, Ne, and CH$_3$OCH$_3$ and rank them from lowest to highest boiling point.

A solution contains 30% w/w NH$_3$ (aq) (density: 0.90 g/mL). Find the molarity of the solution.