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Arisa [49]
2 years ago
6

Acids naturally present in food are safe to eat because they usually are

Chemistry
2 answers:
Artemon [7]2 years ago
8 0

Answer:

This question is not complete but the completed question is below

Acids naturally present in food are safe to eat because they usually are

A. Weak

B. concentrated

C. dilute

D. strong

The correct option is A.

Explanation:

Acids that are naturally found in food are organic acids. Organic acids are generally known to be weak acids. An acid is a substance that produces hydrogen ion or hydroxonium ion when dissolved in water.

A weak acid however ionizes partially (not releasing all its possible hydrogen ions) in water. Weak acids have pH that are close to neutral (pH 7) and hence are safe for consumption.

tangare [24]2 years ago
7 0
A.Weak

B.concentrated

C.dilute

D.strong



Answer: A - Weak

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What is the molarity of a solution containing 8.0 moles of solute in 120mL of solution?
Nataliya [291]
Answer:
200/3 M which is approximately equal to 66.6667 M

Explanation:
Molarity is defined as the number of moles of solute per liter of solution.

It can be calculated as follows:
molarity =  \frac{number of moles of solute}{liters of solution}

We are given that:
number of moles of solute = 8 moles
volume of solution = 120 ml = 0.12 liters

Substitute with the givens in the above equation to get the molarity as follows:
molarity = \frac{8}{0.12} =  \frac{200}{3} = 66.6667 M

Hope this helps :)
3 0
2 years ago
What volume of a 3.0 M stock solution of H2SO4 is needed to prepare 2.8 L of a 1.6 M H2SO4 solution?
Georgia [21]
Use M1V1 = M2V2 to solve
3(V1) = 2.8 * 1.6
3(V1) = 4.48
V1 = 1.493 L of stock solution
4 0
3 years ago
Read 2 more answers
Which of the following is a gaseous substance that is liquid or solid at room
Sveta_85 [38]

Answer:

  1. liquid is the correct answer
3 0
2 years ago
Help PLZ!!! Which statement accurately represents the arrangement of electrons in Bohr’s atomic model? -Electrons move around th
Novosadov [1.4K]

Answer:

electrons move around the nucleus in fixed orbits of equal amounts of energy

Explanation:

Quantum Theory

7 0
3 years ago
If 21.00 mL of a 0.68 M solution of C6H5NH2 required 6.60 mL of the strong acid to completely neutralize the solution, what was
Andru [333]

Answer:

pH = 2.46

Explanation:

Hello there!

In this case, since this neutralization reaction may be assumed to occur in a 1:1 mole ratio between the base and the strong acid, it is possible to write the following moles and volume-concentrations relationship for the equivalence point:

n_{acid}=n_{base}=n_{salt}

Whereas the moles of the salt are computed as shown below:

n_{salt}=0.021L*0.68mol/L=0.01428mol

So we can divide those moles by the total volume (0.021L+0.0066L=0.0276L) to obtain the concentration of the final salt:

[salt]=0.01428mol/0.0276L=0.517M

Now, we need to keep in mind that this is an acidic salt since the base is weak and the acid strong, so the determinant ionization is:

C_6H_5NH_3^++H_2O\rightleftharpoons  C_6H_5NH_2+H_3O^+

Whose equilibrium expression is:

Ka=\frac{[C_6H_5NH_2][H_3O^+]}{C_6H_5NH_3^+}

Now, since the Kb of C6H5NH2 is 4.3 x 10^-10, its Ka is 2.326x10^-5 (Kw/Kb), we can also write:

2.326x10^{-5}=\frac{x^2}{0.517M}

Whereas x is:

x=\sqrt{0.517*2.326x10^{-5}}\\\\x=3.47x10^-3

Which also equals the concentration of hydrogen ions; therefore, the pH at the equivalence point is:

pH=-log(3.47x10^{-3})\\\\pH=2.46

Regards!

6 0
2 years ago
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