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Chemistry Gas Laws

Q. The following picture represents a sample of gas at a pressure of 1 atm, a volume of 1 L, and a temperature of 25 ∘C What would happen to the pressure if the volume were reduced to 0.5 L and the temperature increased to 260 ∘C?

Solved • Dec 6, 2019

Naming Coordination Compounds

Q. Give the systematic name of this coordination compound. [V(en)3] Cl3

Solved • Dec 6, 2019

Radioactive Decay

Q. What is the daughter nucleus (nuclide) produced when 217At undergoes alpha decay?

Solved • Dec 6, 2019

Coordination Isomers

Q. Consider the structure for [Co(NH3)5SCN]2+. Draw the most probably linkage isomer. Do not include formal charges, and you do not need to include lone pairs or wedge bonds.

Solved • Dec 6, 2019

The Nernst Equation

Q. Calculate the cell potential for the following electrochemical cell Cu2+(aq) + Zn (s) -> Cu (s) + Zn2+(aq) When [Cu2+]=[Zn2+] = 1.00 M

Solved • Dec 6, 2019

Empirical Formula

Q. Menthol is a flavoring agent extracted from peppermint oil. It contains C, H, and O. In one combustion analysis, 10.00 mg of the substance yields 11.53 mg H 2 O and 28.16 mg CO 2 . What is the empirical formula of menthol?

Solved • Dec 6, 2019

First Order Half Life

Q. A moon rock collected by a US Apollo mission is estimated to be 4.40 billion years old by uranium/lead dating. Assuming that the rock did not contain any lead when it was formed, what is the current mass of 206Pb in the rock, it currently contains 1.595 g of 238U? The half-life of 238U is 4.47x10^9 years. 206Pb mass: __g

Solved • Dec 6, 2019