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Questions tagged [homework]

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Entropy Change of Resistor

A very large swimming pool filled with water of temperature equal to $20\ \mathrm{^\circ C}$ is heated by a resistor with a heating power of $500\ \mathrm{W}$ for $20$ minutes. Assuming the water in ...
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Find the concentration of the HCl solution when mixed with 1.265g of ACES-K+

$1.265\ \mathrm g$ of N-(2-acetamido)-2-aminoethanesulfonic acid potassium salt (ACES-K+, $M=220.29\ \mathrm{g/mol}$) is dissolved in $88.42\ \mathrm{mL}$ of water. $27.59\ \mathrm{mL}$ of $\ce{HCl}$ ...
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How to balance the equation for the reaction of aluminum bicarbonate and hydrochloric acid?

Here's what I have to balance: Solid aluminum bicarbonate and hydrochloric acid combine to form an aluminum chloride solution and carbonic acid. Or in an equation form: $$\ce{\text{__ } Al(...