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?

A compound has a chemical composition of 97.6 g carbon, 4.9 g hydrogen, 52 g oxygen, and 45.5 g nitrogen. What is the empirical formula? a. C\(_3\)H\(_3\)O\(_2\)N\(_2\) b. C\(_{10}\)H\(_6\)O\(_4\)N\(_4\) c.

When the temperature is 0 degrees Celsius, the Fahrenheit temperature is 32 degrees. When the Celsius temperature is 100 degrees, the corresponding Fahrenheit temperature is 212 degrees. 1. Express the

Perform the operations: [tex]\[ 5r - 3s + 8t \][/tex] What is the magnitude and direction angle of the resultant vector? A. [tex]\[ 10.8, \theta = 56.3^{\circ} \][/tex] B. [tex]\[

Write the equation that models the problem: 3.5% of 220 is what number? [tex]0.035 \times 220 = x[/tex]

Caviar is an expensive delicacy, so companies that package it pay very close attention to the amount of product in their tins. Suppose a company that produces over 1, 000

Turner measures a foot of ribbon for a costume. He needs 9 pieces of ribbon of that same length.

A reaction has a theoretical yield of 56.9 g. When the reaction is carried out, 36.6 g of the product is obtained.

What is the molarity of a solution formed by dissolving 97.7?

The amount of time to complete a physical activity in a PE class is approximately normally distributed with a mean of 39.5 seconds and a standard deviation of 6.6 seconds.

Jelly has nine pieces of ribbon. She recorded the length of each piece in the line plot shown. What is the total length of the three longest pieces of ribbon?

The sum of a number and 7.5 is 38.2. What is the number?

A 220 V A.C. supply is connected between points A and B. What will be the potential difference \( V \) across the capacitor? Assume an ideal diode. A. 0

Sue graphed the formula for converting temperatures from Fahrenheit to Celsius. A graph titled "Temperature Conversion" has Degrees Fahrenheit on the x-axis and Degrees Celsius on the y-axis. The line

What values of b and c make ADEF AWVU? U 46-9 v D 5b+36 F 12b- 34 3c E w b =