Download the App!

Get 24/7 study help with the Numerade app for iOS and Android! Enter your email for an invite.

Get the answer to your homework problem.

Try Numerade free for 7 days

Like

Report

Calculate the concentration of $\mathrm{H}^{+}$ ions in a $0.62 \mathrm{M}$ NaOH solution.

$$1.6 \times 10^{-14}$$

Chemistry 102

Chapter 15

Acids and Bases

Liquids

University of Central Florida

Brown University

Lectures

03:07

A liquid is a nearly incompressible fluid that conforms to the shape of its container but retains a (nearly) constant volume independent of pressure. As such, a liquid is one of the four fundamental states of matter (the others being solid, gas and plasma). A liquid is made up of tiny vibrating particles of matter, such as atoms, held together by intermolecular bonds. Water is, by far, the most common liquid on Earth. Like a gas, a liquid is able to flow and take the shape of a container. Most liquids resist compression, although others can be compressed. Unlike a gas, a liquid does not disperse to fill every space of a container, and maintains a fairly constant density. A distinctive property of the liquid state is surface tension, leading to wetting phenomena.

04:38

A liquid is a state of matter in which a substance changes its shape easily and takes the form of its container, and in which the substance retains a constant volume independent of pressure. As a result of this, a liquid does not maintain a definite shape, and its volume is variable. The characteristic properties of a liquid are surface tension, viscosity, and capillarity. The liquid state has a definite volume, but it also has a definite surface. The volume is uniform throughout the whole of the liquid. Solids have a fixed shape and a definite volume, but they do not have a definite surface. The volume of a solid does not vary, but the volume of a liquid may vary.

00:40

Calculate the concentratio…

02:23

Calculate the hydronium io…

01:16

01:59

Given the molar concentrat…

01:35

01:55

01:44

01:23

a. Calculate the molarity …

Okay, So our sodium hydroxide concentration, which, when you see that base, just think of it as the hydroxide. Concentration is equal to 0.62 moles per leader. Um, so we've got to find out what is the concentration of the pro towns or the hydrogen ions. So let's put a little question mark. All right. Um, well, in my help to get this into scientific notation, so that would be 6.2 times 10 to the negative one. Okay? And then you always got to start these problems with this. Given that the hydroxide concentration times, the proton concentration, we'll always equal, um, the ion constant off water. Um, and that's one time sending the negative 14. So before we start plugging in the numbers, let's just rearranges to solve for hydrogen our ion concentration. So divide out the hydroxide on concentration on all sides, and you get rid of that leaving you with this. So it's gonna be the own concentration constant of water. We departed by the hydroxide concentration. Okay, well, let's plug in our numbers. So K w is always going to be this number one times tend to the negative 14. Now, if you want to put your units in there, it's a big M divided by we just did it up above six 0.2 times. Tend to the negative one Now, when you defied one, but, um, over 6.2, you're gonna get a 0.1612903 Bali, etcetera. Now, if you look at this in 6.2 or 0.62 was the only number you got and its two significant figures. So if you want around this the right way, round it to 0.16 and just stop there. Um, then it's going to be times tenderly something which you get from looking at the negative 14 benefits provided by negative one. It's minus for exponents. Um, so negative 14 minus negative one. So be careful. There's you're adding it, which makes it negative. 30 18. I can really trip up tribute. All right, so that's again the concentration Now, are we done? Not quite. Because that's not proper scientific notation. You can't have a number less than one, so you gotta move that decimal over to the right, and then it will be good, which will be your final answer. 1.6. If I make. If I move the decibel to the right, I have to make my exponents a little smaller. And there you go. Hydrogen ion concentration is 1.6 times 10 the negative 14 moles per leader.

View More Answers From This Book

Find Another Textbook

Numerade Educator

02:39

Using the data in Appendix 3, calculate the standard entropy changes for the…

03:25

Calculate the wavelength of a helium atom whose speed is equal to the root-m…

00:45

Referring to the Chemistry in Action essay on p. $358,$ answer the following…

07:39

How many liters of the antifreeze ethylene glycol $\left[\mathrm{CH}_{2}(\ma…

05:33

Write Lewis structures for the following ions:(a) $\mathrm{O}_{2}^{2-},$…

01:46

Use the Arrhenius equation to show why the rate constant of a reaction (a) d…

02:45

The concentration of sulfate in water can be determined by adding a solution…

11:35

Calculate the volume in $\mathrm{mL}$ of a $1.420 \mathrm{M} \mathrm{NaOH}$ …

09:01

If chlorine bleach is mixed with other cleaning products containing ammonia,…

04:32

Two vessels are labeled $A$ and $B$. Vessel A contains $\mathrm{NH}_{3}$ gas…