1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kkurt [141]
3 years ago
6

What is the chemical formula for toothpaste?

Chemistry
2 answers:
drek231 [11]3 years ago
4 0
The most common type of fluoride found in toothpaste is part of the compound sodium fluoride which has the chemical formula NaF
stira [4]3 years ago
4 0
It would be NaF but make sure you write it correctly because otherwise you'll be writing the wrong chemical
You might be interested in
Stage in a star's evolution formed as the core of a main sequence star uses up its helium and the outer layers escape into space
Lena [83]

Answer: the answer is white dwarf

Explanation:

3 0
3 years ago
Read 2 more answers
NEED HELP ANSWERING THIS QUESTION
victus00 [196]

Answer:

I think the answer is A.

please give thanks if it helps

and sorry if it doesn't help.

4 0
3 years ago
Find the initial concentration of the weak acid or base in each of the following aqueous solutions: (a) a solution of HClO with
Luda [366]

Answer:

a) 0.021 M

b) 0.019 M

Explanation:

To do this, you need to calculate the concentration of ions in solution with the given value of pH for each solution, then, write the chemical equation for both solutions, Set an ICE chart, use the value of Ka and Kb reported for both solutions, and solve for the initial concentration.

This is the general procedure to do it, now let's do it by parts.

<em><u>a) Concentration of HClO pH = 4.6</u></em>

With the given pH, we use the following expression:

pH = -log[H₃O⁺]      From here, we solve for [H₃O⁺]

[H₃O⁺] = 10^(-pH)   (1)

Let's calculate first the hydronium concentration:

[H₃O⁺] = 10^(-4.6) = 2.51x10⁻⁵ M

This value indicates the equilibrium concentration of this ion in solution. Now, to know the initial concentration of the acid, we need to do an ICE chart and write the chemical equation. This is an acid - base reaction, so we need the value of Ka of the acid.

         HClO + H₂O <---------> H₃O⁺ + ClO⁻       Ka = 3x10⁻⁸

I:            Y                                 0          0

C:          -x                                +x         +x

E:           Y - x                            x          x

With this chart, we need to write the expression for Ka which is:

Ka = [H₃O⁺] * [ClO⁻] / [HClO] = x² / Y-x

But we already know the concentration of [H₃O⁺], which is the same for [ClO⁻], and the value of Ka, so all we have to do is replace the values in the above expression and solve for Y:

3x10⁻⁸ = (2.51x10⁻⁵)² / Y - 2.51x10⁻⁵

We can round to Y because "x" is a very small value as it's value of Ka so:

3x10⁻⁸ = (2.51x10⁻⁵)²/Y

Y = (2.51x10⁻⁵)²/3x10⁻⁸

<h2><em>Y = [HClO] = 0.021 M</em></h2>

<em>And this is the initial concentration of the acid.</em>

<u><em>b) Solution of hidrazine pH = 10.2</em></u>

We do the same procedure as part a) with the difference that instead of using Ka , we use Kb and concentration of [OH⁻]. The Kb for hydrazine is 1.3x10⁻⁶

Let's calculate the [OH⁻]:

pOH = 14 - pH

pOH = 14 - 10.2 = 3.8

[OH⁻] = 10^(-3.8) = 1.58x10⁻⁴ M

The chemical equation:

          N₂H₄ + H₂O <---------> N₂H₅⁺ + OH⁻    Kb = 1.3x10⁻⁶

I:            Y                                  0           0

C:          -x                                +x           +x

E:         Y-x                                 x           x

Kb = x²/(Y-x)

1.3x10⁻⁶ = (1.58x10⁻⁴)²/Y

Y = (1.58x10⁻⁴)²/1.3x10⁻⁶

<h2><em><u>Y = [OH⁻] = 0.019 M</u></em></h2>

And this is the initial concentration of hydrazine

4 0
3 years ago
What is the molarity of ammonia if it is 1.0 ionized?
alexandr402 [8]

Answer:

A (0.0018 M

Explanation:

Ammonia is very strong but it is good to use around the house because if u have bugs or anything that's the same stuff to use for it

3 0
3 years ago
Hey so i dont get this help please​
Leya [2.2K]

Answer:

ta da

Explanation:

8 0
3 years ago
Other questions:
  • If you weighed the atoms that appear on the reactant side of the equation, would they have the same mass as the atoms that appea
    8·1 answer
  • 13. Which best describes the transition from gas to liquidy (2 points)
    14·1 answer
  • When two molecules of methanol (CH3OH) react with oxygen, they combine with three O2 molecules to form two CO2 molecules and fou
    10·1 answer
  • What happens to the motion of molecules when temperature decreases
    9·2 answers
  • The gas molecules that make up air are in two rooms. The gas molecules in the kitchen are moving faster than the gas molecules i
    15·1 answer
  • Draw the structure of cis-4-nonene. Now describe the structure you have drawn:
    15·1 answer
  • How many atoms are in oxygen
    5·1 answer
  • Please help me with these?
    8·1 answer
  • When people walked on the Moon, they found that they could jump higher than they could back on Earth. Why is this true?
    5·1 answer
  • What type of lens is shown -covex lens<br> -this isnt a lens<br> concave lens
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!