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2 years ago

O que é etnocentrismo

Chemistry

1 answer:

Shtirlitz [24]2 years ago

4 0

Answer:

yes and bla bla

........

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How many atoms of S are there in the reactants? Sg + F2 ---> SFO

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One atom

Explanation:

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2 years ago

Cameron is visiting a new country while traveling around the world. He is extremely fascinated by the cuisine of this country. H

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2 years ago

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To a 25.00 mL volumetric flask, a lab technician adds a 0.150 g sample of a weak monoprotic acid, HA , and dilutes to the mark w

Elis [28]

Answer: The number of moles of weak acid is $4.24\times 10^{-3}$ moles.

Explanation:

To calculate the moles of KOH, we use the equation:

$\text{Molarity of the solution}=\frac{\text{Moles of solute}}\text{Volume of solution (in L)}}$

We are given:

Volume of solution = 43.81 mL = 0.04381 L (Conversion factor: 1L = 1000 mL)

Molarity of the solution = 0.0969 moles/ L

Putting values in above equation, we get:

$0.0969mol/L=\frac{\text{Moles of KOH}}{0.04381}\\\\\text{Moles of KOH}=4.24\times 10^{-3}mol$

The chemical reaction of weak monoprotic acid and KOH follows the equation:

$HA+KOH\rightarrow KA+H_2O$

By Stoichiometry of the reaction:

1 mole of KOH reacts with 1 mole of weak monoprotic acid.

So, $4.24\times 10^{-3}mol$ of KOH will react with = $\frac{1}{1}\times 4.24\times 10^{-3}=4.24\times 10^{-3}mol$ of weak monoprotic acid.

Hence, the number of moles of weak acid is $4.24\times 10^{-3}$ moles.

6 0

3 years ago

PLEASE ANSWER ARE THESE CORRECTTTTTT

Naddik [55]

1. The answer is E.

2. I agree with your answers.

3. I also agree with your answers

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3 years ago

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I need help with this question please help me

bulgar [2K]

8xc take away 8xExplanation:

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2 years ago

O que é etnocentrismo​

O que é etnocentrismo