Which fact below is describing a base?

1 answer:

6 0

7 to 49 10 to 100. 30 Secs. 3. What is the pH value of pure water? 0 3 7 10 ... How do acids taste? bitter sour sweet salty. 30 Secs. 7. How do bases taste? bitter ... 8. Which kind of solution would react with a metal? acidic basic neutral water ... cocoa has a bitter taste. It is most likely which of the following? acid base neutral

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Answer:

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What is the molarity of the potassium hydroxide if 25.25 mL of KOH is required to neutralize 0.500 g of oxalic acid, H2C2O4? H2C

Greeley [361]

Answer:

0.444 mol/L

Explanation:

First step is to find the number of moles of oxalic acid.

n(oxalic acid) = $\frac{0.5g}{90.03 g/mol} = 5.5537*10^{-3} mol\\$

Now use the molar ratio to find how many moles of NaOH would be required to neutralize $5.5537*10^{-3} mol\\$ of oxalic acid.

n(oxalic acid): n(potassium hydroxide)

1 : 2 (we get this from the balanced equation)

$5.5537*10^{-3} mol\\$ : x

x = 0.0111 mol

Now to calculate what concentration of KOH that would be in 25 mL of water:

$c = \frac{number of moles}{volume} = \frac{0.0111}{0.025} = 0.444 mol/L$

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Explanation:

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