From Questions to Solutions

Calculate the molecular weight of a gas if 0.574 g occupies [tex]0.548 \times 10^{-3} \, m^3[/tex] at [tex]22^{\circ} C[/tex] and a pressure of [tex]98, 800 \, N/m^2[/tex]. A. 24.3 B.

Barbara is converting [tex]78^{\circ} F[/tex] to degrees Celsius. First, she subtracts 32 from 78. What is the next step? A. Multiply 46 by [tex]\frac{5}{9}[/tex] B. Multiply 46 by [tex]\frac{9}{5}[/tex] C.

A dress needs 3.65 m of cloth. A tailor makes six dresses. How much cloth does the tailor need? A. 21.9 m B. 36.9 m C. 45.9 m D. 63.9

If [tex] \sin \theta = \frac{3}{5} [/tex], what is the measure of the angle? A. 53.1º B. 36.9º C. 30.1º D. 59º

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

Mrs. Grey is buying blue ribbon, silver ribbon, and yellow ribbon. Blue ribbon comes in 15-meter rolls, silver ribbon comes in 12-meter rolls, and yellow ribbon comes in 20-meter rolls.

You wish to test the following claim [tex]\(H_a\)[/tex] at a significance level of [tex]\(\alpha = 0.10\)[/tex].[tex]\[ \begin{array}{l} H_o: \mu = 63.8 \\ H_a: \mu \neq 63.8 \end{array} \][/tex]You believe the

The distance between two locations, [tex]A[/tex] and [tex]B[/tex], is calculated using a third location [tex]C[/tex], which is 15 miles from location [tex]B[/tex]. If [tex]\angle B = 105^{\circ}[/tex] and [tex]\angle C

Pam cuts 75 inches of ribbon into 6 equally sized pieces with no ribbon left over. What is the length in inches of each piece of ribbon?

What is the normal oral temperature? A. 97.6 B. 98.6 C. 99.6 D. 100.6

Write [tex]3.00 \times 10^{13} \times 1.22 \times 10^{9}[/tex] in scientific notation. a) [tex]3.66 \times 10^{22}[/tex] b) [tex]36.6 \times 10^{21}[/tex] c) [tex]366 \times 10^{20}[/tex] d) [tex]3.66 \times 10^{19}[/tex]

An ice sled powered by a rocket engine starts from rest on a large frozen lake and accelerates at [tex]12.8 \, \text{m/s}^2[/tex]. At time [tex]t_1[/tex], the rocket engine is shut

A 40.0 mL volume of ethane gas is heated from 25.0 °C to 50.0 °C. If the pressure remains constant, what is the final volume in milliliters? A. 20.0 mL

Show how algebra can be used to work out each of these without a calculator. a. [tex]268^2 - 232^2[/tex] b. [tex]469 \times 548 + 469^2 - 469 \times 17[/tex] c.

What is the molecular (formula) mass of a compound with the formula M₂(XO₂)₂ if the atomic mass of M is 39.3 amu and that of X is 24.6 amu?