From Questions to Solutions

Determine \(\Delta G°\) for the reaction: \[2 \text{NO}_2(g) \rightarrow \text{N}_2\text{O}_4(g)\] at 25°C. Given: \[\Delta G°_f (\text{NO}_2) = 51.3 \, \text{kJ/mol}\] \[\Delta G°_f (\text{N}_2\text{O}_4) = 97.8 \, \text{kJ/mol}\]

Sara uses ribbon to make hair bows. The length of each ribbon Sara uses is represented by the line plot shown. What is the difference, in feet, between one of

You want to buy a new TV. The diagonal measurement of the screen is 42 inches, and the screen width is 36.6 inches. What is the screen height? Round your

Suppose that a firm faces the demand equation [tex]Q = 100 - 0.5P[/tex], where [tex]P[/tex] is the price and [tex]Q[/tex] is the output or demand. Find the output level that

Heat is measured in: A. g/cm\(^3\) B. degrees Celsius C. degrees Celsius and degrees Fahrenheit D. degrees Fahrenheit E. calories

What voltage is required to store 14.0 mJ of electrical energy on a 6.0×10⁻⁹ F capacitor? A. 46 V B. 9.5 V C. 2.2×10³ V D. 9.3×10⁻⁴ V E. 4.8×10⁴

The table to the right gives the number of men (in millions) in a country's civilian workforce for selected years from 1950 and projected to 2050. Use the given information

The high temperatures (in degrees Fahrenheit) of a random sample of 10 small towns are: 96.5, 96.9, 98.3, 99.1, 96.3, 96.4, 97.7, 98.6, 96.7, 98 Assume high temperatures are normally

4. A 0.100 M solution of NaOH is used to titrate an HCl solution of unknown concentration. To neutralize the solution, an average volume of the titrant was 38.2 mL.

For the gas phase decomposition of cyclobutane, \[ \text{(CH}_2\text{)}_4 \rightarrow 2\text{C}_2\text{H}_4 \] the rate constant has been determined at several temperatures. When \(\ln k\) in \(\text{s}^{-1}\) is plotted against the

Which of the following descriptions is most concerning for acute bacterial sinusitis rather than viral or allergic rhinitis? A. Itchy, watery eyes with sneezing and clear nasal discharge B. Fever

A train can travel 39.3 miles per hour. At this speed, about how far can the train travel in 6.5 hours?

Which of the following formulas determines your estimated maximum heart rate? A. 200 + your age B. 220 + your age C. 200 - your age D. 220 - your

What is the molarity of a solution formed by dissolving 97.7 g of LiBr in enough water to yield 750.0 mL of solution?

What volume of \(\text{O}_2\) is needed to react completely with 39.4 g of \(\text{MoS}_2\) (molar mass = 160.06 g/mol) at STP?