Chemistry Exam

Which of the following graphs accurately depicts the relationship between pressure and volume for an ideal gas when temperature is held constant?

A student determined the density of an iron sample to be 7.57 $g/cm^3$. Using Table S, what is the percent error of the student's density calculation for iron?

Identify the formula that represents a molecule containing the most polar bond.

Determine the amount of heat required to raise the temperature of 130.0 grams of water from 20.0°C to 50.0°C.

Identify which information about butane ($C_4H_{10}$) can be derived from its structural formula but not its molecular formula?

Compared to an aluminum atom in the ground state, a boron atom in the ground state features which combination of electron shells and atomic radius?

For any quantity of tungsten at STP, which property will remain the same?

Which zinc sample has atoms with the highest average kinetic energy?

Identify the molecule that exhibits symmetry in both its shape and distribution of charge.

Which numerical setup can be used to correctly calculate the formula mass of $C_9H_{11}NO_2$?

Given the reaction $3Mg(s) + N_2(g) \rightarrow Mg_3N_2(s)$, what mass of $Mg_3N_2$ is produced when 14.58 grams of magnesium completely reacts with 5.60 grams of nitrogen?

In the incomplete fermentation reaction $X \rightarrow 2CH_3CH_2OH + 2CO_2$, which formula represents the missing reactant X?

Consider the cooling curve for a compound, beginning in the liquid phase. What statement best describes the average kinetic energy and potential energy of the compound between minute 2 and minute 6?

Solid aluminum has a specific heat capacity of 0.90 J/g·K. How many joules of heat are absorbed to raise the temperature of 24.0 grams of aluminum from 300 K to 350 K?

An element that readily undergoes reactions typical of metals is most likely to have which atomic number?

Using standard reference tables, determine the vapor pressure of propanone at 45°C.

What is the mass of one mole of bromine gas ($Br_2$)?

Which statement explains the low boiling point of hydrogen ($H_2$) at standard pressure?

Given the reaction $F_2(g) + 2KCl(aq) \rightarrow 2KF(aq) + Cl_2(g)$, which type of chemical reaction is represented?

What is the empirical formula for ethane $(C_2H_6)$?

Calculate the amount of heat required to melt 43 grams of solid magnesium oxide at its melting point, given that the heat of fusion is $1.9 \times 10^3$ J/g.