What is a colony-forming unit and how is it used to infer microbial numbers in a sample?

A _____ cell contains two copies of each chromosome.

What is the hallmark of all horizontal gene transfers?

What are the steps of binary fission?

Calculate the grams of solute needed to prepare 25.0 mL of a 6.00 M HCl solution.

Which of the following compounds is a strong electrolyte? Explain your answer.

PbSO$_4$

AgCl

HCl

CH$_3$CO$_2$H

An $\mathrm{NaCl}$ solution is made using $133 \mathrm{~g}$ of $\mathrm{NaCl}$ and diluting to a total solution volume of $1.00 \mathrm{~L}$. Calculate the molarity and mass percent of the solution. (Assume a density of $1.08 \mathrm{~g} / \mathrm{mL}$ for the solution.)

What is the molarity of NO−3 in each solution?

A) 0.200 M KNO3.
B) 0.240 M Ca(NO3)2
C)0.370 M Al(NO3)3

To what volume should you dilute $125 \mathrm{~mL}$ of $8.00 \mathrm{M} \mathrm{CuCl}_2$ solution so that $50.0 \mathrm{~mL}$ of the dilute solution contains $5.9 \mathrm{~g} \mathrm{CuCl}_2$ ?

Calculate the mass/mass percent concentration for the following solution.

$1.25$ g NaCl in $100.0$ g of solution

Consider the reaction:

$$\mathrm{Mg}(s)+2 \mathrm{HCl}(a q) \longrightarrow \mathrm{MgCl}_2(a q)+\mathrm{H}_2(g)$$

What minimum amount of $1.85 \mathrm{M} \mathrm{HCl}$ is necessary to produce $28.5 \mathrm{~L}$ of $\mathrm{H}_2$ at STP?

Determine the amount of sucrose in each solution.

(a) $48 \mathrm{~g}$ of a solution containing $3.7 \%$ sucrose by mass

(b) $103 \mathrm{mg}$ of a solution containing $10.2 \%$ sucrose by mass

(c) $3.2 \mathrm{~kg}$ of a solution containing $14.3 \%$ sucrose by mass

Determine the freezing point of an aqueous solution that is $0.24 \mathrm{~m}$ in sucrose.

How to determine which solution has the highest boiling point?