An antacid tablet requires $25.82$ $\mathrm{~mL}$ of $0.200$ $\mathrm{M}$ $\mathrm{HCl}$ to titrate to its equivalence point. What volume in milliliters of stomach acid can be neutralized by the antacid tablet? Assume that stomach acid has a $\mathrm{pH}$ of $1.1.$ (Assume two significant figures in your calculations.)

Write a balanced chemical equation showing how each metal reacts with $\mathrm{HBr}$.

(a) $\mathrm{Rb}$

(b) $\mathrm{Mg}$

(c) $\mathrm{Ba}$

(d) $\mathrm{Al}$

Which of the following are Arrhenius acids? (a) H2O, (b) Ca(OH)2, (c) H3PO3, (d) HI

A sample of 0.1687 g of an unknown monoprotic acid was dissolved in 25.0 mL of water and titrated with 0.1150 M NaOH. The acid req uired 15.5 mL of base to reach the equivalence point. What is the molar mass of the acid?

Scuba divers breathing air at increased pressure can suffer from nitrogen narcosis-a condition resembling drunkenn esswhen the partial pressure of nitro gen exceeds about 4 atm. What property of gas/water solutions causes this to happen? How can a diver reverse this effect?

n4se4 compound name

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

Water (2750 g ) is heated until it just begins to boil. If the water absorbs 5.29×105 J of heat in the process, what was the initial temperature of the water?

An aqueous solution containing 35.9 g of an unknown molecular (no nelectrolyte) compound in 150.0 g of water has a freezing point of - 1.3$^{\circ} \mathrm{C}$. Calculate the molar mass of the unknown compound.

You can purchase nitric acid in a concentrated form that is 70.3% HNO$_3$ by mass and has a density of 1.41 g/ mL. Describe exactly how you would prepare 1.15 L of 0.100 M HNO$_3$ from the concentrated solution

A random number generator on a computer selects two integers from 1 through 40. What is the probability that both numbers are less than 30.

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.)