Find the total pressure for a mixture that contains four gases with partial pressures of 5.00 kPa, 4.56 kPa, 3.02 kPa, and 1.20 kPa.

Find the partial pressure of carbon dioxide in a gas mixture with a total pressure of 30.4 kPa if the partial pressures of the other two gases in the mixture are 16.5 kPa and 3.7 kPa.

What is the rate of effusion for a gas that has a molar mass twice that of a gas that effuses at a rate of 3.6 mol/min?

Calculate the ratio of diffusion rates for carbon monoxide and carbon dioxide.

Calculate the ratio of effusion rates for nitrogen $(N_2)$ and neon (Ne).

The volume of a gas at 99.0 KPa is 300.0 mL. If the pressure is increased to 188 KPa, what will be the new volume?

Greg is on a 32-mile bicycle trail from Elroy, Wisconsin, to Sparta, Wisconsin. He leaves Elroy at 9:30 A.M. and arrives in Sparta at 2:00 P.M. Graph the line that represents Greg’s distance from Elroy at a given time. Find and interpret the slope of the line.

Un grupo de vecinos escribe una carta al periódico. Escoge las expresiones adecuadas para completarla. Estimado Sr. Director: Le escribimos porque $\underline{1.}$ (preocupar/interesar) la interrupción del tráfico en la calle Ramos. Aunque a todos nosotros $\underline{2.}$ (importar/interesar) que se construya un nuevo centro médico, la construcción $\underline{3.}$ (importar/molestar) diariamente. A mí no $\underline{4.}$ (importar/molestar) sólo el problema del tráfico, $\underline{5.}$ (preocupar/interesar) también la basura que se está acumulando en el lugar. Favor de mejorar la situación. Atentamente, Los vecinos de la calle Ramos

How many moles are present in 1.00 g of each compound? L-tryptophan $(C_{11} H_{12} N_2 O_2)$, an essential amino acid

Draw the Lewis structure for each molecule or ion. $ClO_2^-$

Write chemical, complete ionic, and net ionic equations for these reactions. Hydrobromic acid $(HBr)$ reacts with aqueous ammonium carbonate, forming carbon dioxide gas and water.

Write each in simplest radical form. $3 \sqrt{20}$

Determine whether the line through the first pair of points intersects the line through the second pair of points. Explain. Line 1: $(3,-2),(7,-1)$ Line 2: $(5,2),(6,-2)$

Determine the number of moles in each of the following. 25.5 g Ag