From Questions to Solutions

If 38.2 g of NO and 26.9 g of O2 react together, how many grams of NO2 can be formed via the reaction below? \[ 2\text{NO}(g) + \text{O}_2(g) \rightarrow 2\text{NO}_2(g)

What is [tex]-9.2(8x-4)+0.7(2+6.3x)[/tex] simplified? A. [tex]-69.19x - 32.39[/tex] B. [tex]-69.19x + 38.2[/tex] C. [tex]-72.2x + 41.21[/tex] D. [tex]75x - 338.2[/tex]

Calculate the boiling point of a 4.5 m solution of Na2SO4 in water, assuming 100% dissociation. Given [tex]K_p(H_2O) = 0.52 \, \text{°C/m}[/tex]. A. 97.7 °C B. 102.3 °C C. 104.7

Points [tex] A [/tex] and [tex] B [/tex] lie on a circle centered at point [tex] O [/tex]. If [tex] OA = 5 [/tex] and [tex]\frac{\text{length of } \overparen{AB}}{\text{circumference}} =

A 27-inch long ribbon was cut into 4 equal lengths. How long was each piece of ribbon?

a: What is the molality of a solution created with 36.9 g of [tex]C_6H_{12}O_6[/tex] dissolved in 482 g of water? b: What is the molarity of a solution created with

Given that ABCD is a rhombus, what is the value of x? A. 29 B. 23 C. 46 D. 38 E. 45 F. Cannot be determined

Calculate the width of a 70" TV if the TV has an aspect ratio of 16:9. A. 44.8" B. 80.33" C. 61" D. 39.4"

Which of the numbers below are whole numbers? Check all that apply. A. [tex]\frac{1}{10}[/tex] B. 87 C. 650 D. 442.49 E. 6282 F. 99.8

A sample of oxygen was collected in a tube over water. In the tube, there is a mixture of oxygen gas and gaseous water (steam). The total pressure of the

At [tex]$20^{\circ} C$[/tex], the density of mercury is [tex]$13.6 \, g/cm^3$[/tex]. What is the mass of 97.8 mL of mercury at [tex]$20^{\circ} C$[/tex]? A. [tex]$1.33 \times 10^3 \, g$[/tex] B.

Draw a prime factor tree for 220. Use your tree to write the prime decomposition of 220 in index form.

If 14.2 g of Al(NO3)3 is dissolved in 655 g of water, what is the boiling point of the solution? Assume 100% dissociation. Given that [tex]k_b \text{(H}_2\text{O)} = 0.52 \,

An ice skater moving at 13.7 m/s coasts to a halt in 97.6 m on a smooth ice surface. What is the coefficient of friction between the ice and the

Determine the molarity of a solution formed by dissolving 97.7 g LiBr in enough water to yield 750.0 ml of solution. A) 1.50 M B) 1.18 M C) 0.130 M