From Questions to Solutions

Calculate the molarity of each solution. (a) 33.2 g of KCl in 0.895 L of solution (b) 61.3 g of C₂H₂O in 3.4 L of solution (c) 38.2 mg of

The diagram shows the scales used for recording temperatures. The labels for the scales are missing. Which labels complete the diagram? A. W: Fahrenheit X: Celsius Y: Kelvin B. W:

Choose the best answer. If necessary, use the paper you were given.If [tex]\frac{3b}{2c} = \frac{9}{5}[/tex], what is the value of [tex]\frac{9b}{6c}[/tex]?A. [tex]\frac{3}{2}[/tex] B. 466 C. 46 D. [tex]\frac{9}{5}[/tex] E. [tex]\frac{9}{2}[/tex]

In a titration of 35.00 mL of 0.737 M H\(_2\)SO\(_4\), how many mL of a 0.827 M KOH solution is required for neutralization? A. 25.8 B. 62.4 C. 39.3 D.

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

For one month, Sierra calculated her hometown's average high temperature in degrees Fahrenheit. What does [tex]$C(F)$[/tex] represent? A. The temperature of [tex]$F$[/tex] degrees Fahrenheit converted to degrees Celsius. B. The

Jane and Theo are learning about the mechanisms of homeostasis in their biology class. They decide to investigate how their bodies respond to various stimuli. They complete the following tests:

In a titration of 35.00 mL of 0.737 M [tex]H_2SO_4[/tex], how many mL of a 0.827 M [tex]KOH[/tex] solution is required for neutralization? A. 35.0 B. 1.12 C. 25.8 D.

A 28.4 g sample of aluminum is heated to 39.4 °C and placed in a calorimeter containing 50.0 g of water. The temperature of water increases from 21.00 °C to

If [tex]f(x) = 2x^2 - 8[/tex] and [tex]g(x) = 2x + 1[/tex], evaluate [tex]f(g(x))[/tex] when [tex]x = -3[/tex]. A. [tex]-30[/tex] B. [tex]-19[/tex] C. 42 D. 46 E. 60

A hot lump of 39.4 g of iron at an initial temperature of 52.4 °C is placed in 50.0 mL of H2O initially at 25.0 °C and allowed to reach

Sue graphed the formula for converting temperatures from Fahrenheit to Celsius. If the temperature is 50 degrees Fahrenheit, what is the temperature in Celsius? A. 5 degrees Celsius B. 10

47. A 15 hp motor has a total loss of 1, 130 W when operating at full-load. What is the percent efficiency?A. 89.5*B. 96.5C. 97.8D. 88.5η = \frac{P_{out}}{P_{out} + P_{loss}}

Which expression is equivalent to [tex]30\left(\frac{1}{2} x-2\right)+40\left(\frac{3}{4} y-4\right)[/tex]?A. [tex]45xy-220[/tex] B. [tex]15x-30y-220[/tex] C. [tex]15x+30y-220[/tex] D. [tex]15x+30y-84[/tex]

Select the correct answer. 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