3 years ago

You can open a can of soda at room temperature and hear a hiss which of the following factors has change inside the container

Chemistry

2 answers:

Masteriza [31]3 years ago

7 0

pressure has escaped the can

professor190 [17]3 years ago

3 0

In the can the amount of gas has changed.

By opening a soda can you are releasing carbon dioxide which is making the hissing noise.

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4 years ago

. How many milliliters of 0.20 M HCl are needed to exactly neutralize 40. milliliters of 0.40 M KOH

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Answer:

$V_{HCl}=80mL$

Explanation:

Hello,

In this case, for the given reactants we identify the following chemical reaction:

$KOH+HCl\rightarrow KCl+H_2O$

Thus, we evidence a 1:1 molar ratio between KOH and HCl, therefore, for the complete neutralization we have equal number of moles, that in terms of molarities and volumes become:

$n_{HCl}=n_{KOH}\\\\M_{HCl}V_{HCl}=M_{KOH}V_{KOH}$