From Questions to Solutions

DATA: ``` Trt A Trt B Trt C Trt D Trt E 1 42.0 57.5 42.1 47.6 47.3 2 38.7 39.3 58.9 37.1 53.9 3 57.8 53.7 28.9 58.8 39.0

The molar heat of vaporization of ethanol is 39.3 kJ/mol, and the boiling point of ethanol is 78.3°C. Calculate [tex]\Delta S[/tex] for the vaporization of 0.30 mol of ethanol.

Find the value of \[ \sin^2 1° + \sin^2 2° + \sin^2 3° + \ldots + \sin^2 89° + \sin^2 90° \] A. 0.5 B. 1 C. 1.5 D. 45

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

Find the sum of the first 6 terms of the following sequence. Round to the nearest hundredth if necessary. 7, -21, 63, ... A. -220 B. -218.73 C. 218.73 D.

Dew point corrosion can occur if the metal temperature is below the dew point. The dew point of sulfuric acid is __________. A. 280º F B. 220º F C. 310º

The compound [tex]A_2X[/tex] is [tex]36.9\%[/tex] [tex]A[/tex] by mass. What mass of the compound contains [tex]44.1 \, \text{g} \, A[/tex]? A. [tex]36.9 \, \text{g}[/tex] B. [tex]16.3 \, \text{g}[/tex] C. [tex]239 \,

What temperature scale(s) are used most often by scientists? A. Only Celsius B. Celsius and Kelvin C. Fahrenheit and Kelvin D. Fahrenheit and Celsius

Connie has 84 feet of red ribbon, 48 feet of blue ribbon, and 72 feet of white ribbon. She wants to cut the ribbon into equal lengths that are as

Yeast converts glucose to ethanol and carbon dioxide during a process known as anaerobic fermentation. The chemical reaction is \[ \text{C}_6\text{H}_{12}\text{O}_6 \rightarrow 2 \text{C}_2\text{H}_6\text{O} + 2 \text{CO}_2 \] If 200.0

Calculate \(\Delta S\) for the vaporization of 0.500 mol of ethanol. The molar heat of vaporization of ethanol is 39.3 kJ/mol, and the boiling point of ethanol is 78.3°C.

Step 1: Calculate the least squares regression equation using mother's schooling (X) to predict family income (Y). Example: P = 42.21 + 0.52x Step 2: Use your prediction equation from

A motorboat sets out in the direction N 62°18' E. The speed of the boat in still water is 36.9 mph. If the current is flowing directly south, and the

The normal boiling point of a metal is 693 K. Calculate the boiling point in Celsius and Fahrenheit. A. Celsius: 419.85, Fahrenheit: 787.73 B. Celsius: 693, Fahrenheit: 1279.4 C. Celsius:

Compute the following: [tex] \begin{array}{r} 39.4 + (-7.2) = \\ 4.5 - 29.26 = \\ \end{array} [/tex]