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2 years ago

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the ph of a naoh solution is 12.05. what is the concentration of [oh-] of the naoh solution? express your answer in standard not

ation

1 answer:

Vesnalui [34]2 years ago

4 0

Answer:

12.05,oei

Explanation:

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Answer:

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Explanation:

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In this case, since the undergoing chemical reaction is:

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The corresponding moles of carbon dioxide occupying 40.0 mL (0.0400 L) are computed by using the ideal gas equation at 273.15 K and 1.00 atm (STP) as follows:

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Then, since the mole ratio between carbon dioxide and calcium carbonate is 1:1 and the molar mass of the reactant is 100 g/mol, the mass that yields such volume turns out:

$m_{CaCO_3}=1.79x10^{-3}molCO_2*\frac{1molCaCO_3}{1molCO_2} *\frac{100g CaCO_3}{1molCaCO_3}\\ \\m_{CaCO_3}=0.179gCaCO_3$

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