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shusha [124]
3 years ago
5

Please Which one??? is it???

Chemistry
2 answers:
Tatiana [17]3 years ago
6 0
The 1st one. Fertilizers are like food for plants, and that's what an algae is, sorta. Trout's don't eat algae and if there's too much algae around, it gets dirty and they eventually die because of the amount of bacteria in the algae. It's the same thing if you have a fish tank.
OleMash [197]3 years ago
6 0
It’s the first one madam
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Use the drop-down menus to complete the statement.
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What letter on the model titration curve corresponds to the point where ph equals the numerical value of pka for hpr? what speci
irakobra [83]

Letter C on the model titration curve corresponds to the point where pH equals the numerical value of pKa for HPr

<h3>What is a titration curve?</h3>

A titration curve is a graph of the pH of a solution against increasing volumes of an acid or a base that is added to the solution.

The pH of a solution is the negative logarithm to base ten of the hydrogen ion concentration and is a measure of the acidity or alkalinity of the solution.

The pKa is the acid dissociation constant of an acid solution.

In a titration of a strong acid and strong base, the pH at equivalence point is equal to the pKa of the acid.

The equivalence point is the point when equal moles of acids and base has reacted.

In the given titration curve, pH = pKa at point C.

In conclusion, for a titration curve of strong acid and base, at equivalence point, pH is equal to pKa of acid.

Learn more about equivalence point at: brainly.com/question/23502649

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4 0
2 years ago
In the combustion of gasoline, if it is calculated that 250.15 g of CO2 will be produced, but only 212.48 g are collected, what
S_A_V [24]

Answer:

To calculate the Carbon Dioxide - CO 2 - emission from a fuel, the carbon content of the fuel must be multiplied with the ratio of molecular weight of CO 2 (44) to the molecular weight of Carbon (12) -> 44 / 12 = 3.7 Emission of CO 2 from combustion of some common fuels are indicated in the table

Explanation:

8 0
2 years ago
How many moles are there in 270.4 g sample of NaOH
pochemuha

Answer:

6.5

Explanation:

No of moles is the ratio of reacting mass to molar mass

RM - 270.4g

MM - 23+16+1= 40g/mol

270.4/40= 6.76mol

3 0
3 years ago
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