Titration is a quantitative analytical procedure that works by allowing a known analyte to gradually react with a titrant until an endpoint is reached.

Titration for weak acid and strong base:

Moles of acetic acid = moles of NaOH

Given:

Concentration of NaOH = 0.1067 M

Volume of NaOH = 30.07 ml = 0.03007 L

Calculation:

So, by using the formula, Concentration = Moles/Volume

Moles of NaOH = concentration x volume = 0.1067 x 0.03007 = 0.0032

Therefore, the moles of acetic acid = 0.0032 mole

Now, using the formula again for determining the concentration of acetic acid, we get,

Concentration = Moles/Volume

Concentration of acetic acid = 0.0032/0.025 = 0.128M

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2 years ago

4. The nucleus of an atom is positively charged due to<br>A. electrons b. neutrons C. proton D. Ion

FinnZ [79.3K]

Answer:

Protons

Explanation:

Electrons have a negative charge which are found in shells around the nucleus. The nucleus consists of protons and neutron and the neutron has a neutral charge.

8 0

3 years ago

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How many grams are in 2.5 moles of Carbon

Jet001 [13]

According to the periodic table, carbon's molar mass is 12.011 grams per mole (that's the small number under the element). So, just multiply like this to get the answer:

$(2.5\ mol\ C)(\frac{grams\ C}{12.011\ mol\ C})=0.20814\ g\ C$

So, there are approximately 0.208 grams in 2.5 moles of carbon.

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3 years ago

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Which of the following is an example of an element? a brass b oxygen c rust d water

Anna [14]

Answer:Water because it is an element

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3 years ago

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the results have been archived so far in relation to the problem with the given fact relevant and measurable​

the results have been archived so far in relation to the problem with the given fact relevant and measurable