Calculate the grams or milliliters of solute needed to prepare the following solutions:

a. 50.0 mL of a 5.0 %(m / v) KCl} solution

b. 1250 mL of a $4.0 \%(\mathrm{~m} / \mathrm{v}) \mathrm{NH}_4 \mathrm{Cl}$ solution

c. 250 .mL of a 10.0 %(v / v) acetic acid solution

The pentagonal numbers are whole numbers that are represented by pentagonal shapes. The first four pentagonal numbers are shown.

Make a sketch to represent the fifth pentagonal number

Name the set(s) pf numbers to which the numbers belong to.

$$-\frac {32}{95}$$

Chekhov used these words to portray a woman in love. Complete each sentence with an appropriate word from the list. WORD LIST: apathetically, capricious, inscrutable, naive, ominous, prostrate, surmise, unctuous. He would _____ himself in an effort to appease her anger.

For each of the following solutions, the number of moles of solute is given, followed by the total volume of the solution prepared. Calculate the molarity of each solution.
c. $3.15 \mathrm{~mol} \mathrm{NaCl} ; 5.00 \mathrm{~L}$

On Earth, the top edge of a volleyball net is placed 8 feet above the ground, and a basketball hoop is 10 feet above the ground. At what heights would they need to be placed on the Moon to keep the sports equivalent in difficulty?

For each underlined word In the following sentences,write the plural above the word.

Example: Several of those $\underline{\text{woman}}$ women collect hand-painted figutmes.

Several of my $\underline{tooth are loose, doctor.

For the following solutions, the mass of the solute is given, followed by the total volume of solution prepared. Calculate the molarity.

c. $21.5\mathrm{~g}$ of $\mathrm{Na}_2\mathrm{CO}_3 ; 175\mathrm{~mL}$

The passages at right appear in A White House Diary. Define each boldface word. Then, explain why each word is a strong choice to express the author's meaning. There, in the very narrow confines of the plane, that was one of the most poignant sights, that immaculate woman exquisitely dressed.

Which of the following preventative measures should a pregnant woman take to avoid contracting listeriosis?
a. avoid feta cheese
b. avoid pasteurized milk
c. thoroughly heat hot dogs
d. a and c

How many grams of $\mathrm{CO}_2$ must be dissolved in $300 \mathrm{~mL}$ of $0.100 \mathrm{M} \mathrm{Na}_2 \mathrm{CO}_3$ solution to change the solute entirely into $\mathrm{NaHCO}_3$ ?

Solve and check each equation.

$$36 = y - 5 y - 12$$

Triangle RST has vertices at (-8,2), (-4,0), and (-12,8). Find the vertices after the triangle has been reflected over the y-axis.

A $100 \mathrm{~kg}$ stunt woman falls from a three-story building that is $9.9 \mathrm{~m}$ high. If she falls into a net, which slows her down over the course of $1 \mathrm{~s}$, what force did she experience while landing?