Blog

The gases, F2, H2, N2, and O2 at STP are represented in the plot.  Which gas corresponds to curve III?                   Data sheet and Periodic Table

What is the molecular geometry around the N atom in the molecule depicted?           Data sheet and Periodic Table

What are the polarities of CH2Cl2 and CF2Cl2?                                      Data sheet and Periodic Table

Which atom(s) in the acetic acid (CH3COOH, shown) is/are sp3 hybridized as identified with the bolded/larger atom(s)?             Data sheet and Periodic Table

Between HI and HF, which has the higher boiling point and why?  Data sheet and Periodic Table

What mass of sodium hydroxide (NaOH, molar mass = 40.0 g∙mol–1) is needed to make 100.0 mL of a 0.125 M NaOH solution?   Data sheet and Periodic Table

What is the process to determine the mass (in g) of carbon dioxide (CO2, molar mass = 44.01 g∙mol–1) produced from 5.00 g of acetylene (C2H2, molar mass = 26.04 g∙mol–1) and excess oxygen?                                                2C2H2(g) + 5O2(g)4CO2(g) + 2H2O(l)   Data sheet and Periodic Table

The standard molar enthalpy of combustion of ethane (C2H6(g)) is –1559.7 kJ∙mol–1.  Which energy diagram corresponds to this process?  Data sheet and Periodic Table

Between HI and HF, which has the higher boiling point and why?  Data sheet and Periodic Table

Which combination will result is a precipitate forming?  Data sheet and Periodic Table