From Questions to Solutions

What is the molarity of a solution made by dissolving 39.4 g of lithium chloride in enough water to make 1.59 L of solution? Given: $LiCl : 42.39 \, \text{g/mol}$

If the rectangle below is enlarged by a scale factor of 1.8, what will be the perimeter of the new rectangle? 39.4 units 43.2 units 45.6 units 48.2 units

**Reaction Times (in s) and Identification of Comparison Pairs** *Record times one place past the decimal.* | Group | A1 | A2 | A3 | A4 | A5 | A6

Marcus said that 35.853 rounds to 35.9 to the nearest tenth. Laci said that 35.853 rounds to 35.85 to the nearest hundredth. Who is correct? A. Marcus only B. Laci

How do you determine your maximum heart rate? A. Subtract your age from 220 B. Add your age to 220 C. Subtract your age from 200 D. Add your age

Olivia had 176 books and Dawn had 80 books. After each of them donated an equal number of books to an orphanage, Olivia had 5 times as many books as

Determine the number of moles in a 38.2 g sample of sodium chloride (NaCl).

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]$\frac{\text{length of } \hat{AB}}{\text{diameter}} = \frac{1}{4}$[/tex], what is the

Given that the specific heat of chromium is 0.455 J/g∙K, find the final temperature after 35.9 J of energy is removed from 11.7 g of chromium initially at 28.5°C.

Calculate the molalities of some commercial reagents from the following data: - HCl: - Formula weight: 36.465 amu - Density of the solution: 1.19 g/mL - Weight %: 37.2 -

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]

How many millimeters are in 36.6 dL? A. 366 mm B. 3660 mm C. 36600 mm D. 366000 mm

If 390 mL of nitrogen at 36.9 oC and 657 torr is allowed to expand to 870 mL and 570 torr, what is the new temperature in Celsius?

The body temperatures (in °F) of 9 randomly selected men are recorded as follows: 96.9, 97.4, 97.5, 97.8, 97.8, 97.9, 98.0, 98.1, 98.6. Construct a confidence interval with a 0.05

The amount of energy needed to heat 6.1 g of a substance from 50.0°C to 80.0°C is 36.6 J. What is the specific heat capacity of this sample?