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djverab [1.8K]
2 years ago
13

I need help with these

Chemistry
1 answer:
Delvig [45]2 years ago
4 0

Answer:

9yuigyu need points sorry

Explanation:

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If a buffer solution is 0.190 m in a weak acid (ka = 8.2 × 10-5) and 0.590 m in its conjugate base, what is the ph?\
Lubov Fominskaja [6]
<span>You use the Henderson - Hasselbalch equation pH = pKa + log ([salt]/[acid]) pKa = -log (8.2*10^-5) = 4.081 pH = 4.081 + (0.590/0.190) pH = 4.081 + log 3.105 pH = 4.081 + 0.49206 pH = 4.573</span>
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3 years ago
9
marishachu [46]

Answer:

B. as a food preservative in the manufacture of detergents

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2 years ago
When you hold a container, where should the label be?
beks73 [17]

Answer:

On the outside or something like that

7 0
3 years ago
What is one source of CO?
Murljashka [212]

Answer:

Carbon monoxide (CO)—a colorless, odorless, tasteless, and toxic air pollutant—is produced in the incomplete combustion of carbon-containing fuels, such as gasoline, natural gas, oil, coal, and wood. The largest anthropogenic source of CO in the United States is vehicle emissions.

Explanation:

Hope this helps- good Luck! ^w

5 0
3 years ago
Q2. Here is the word equation for a chemical reaction.
Andrew [12]

Explanation:

magnesium  +  zinc oxide  --> magnesium oxide  +  zinc

Mg + ZnO --> MgO + Zn

Reactants:

- Magnesium

- Zinc Oxide

Products:

- Magnesium oxide

- Zinc

Type of reaction: Displacement Reaction

5 0
2 years ago
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