B1 Intermediate US 10197 Folder Collection
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Chemistry life hacks.
McGuyver Meets Mendeleev
in these everyday, chemistry inspired tricks
to make your life a little easier, with all
the evidence you need to back it up.
Now let's get started.
You’re buying the best roast in town,
but no matter what you do,
your coffee always ends up bitter.
Well, chances are you’re brewing with water that’s too hot.
The hotter the water,
the deeper the extraction from your beans, and
the more bitter compounds end up in your brew.
So we’ve got an excellent trick for you
so you don’t have to worry about becoming
a barista to get it right.
If your coffee is too bitter, add a tiny little
pinch of salt and taste a world of difference.
When salt dissolves, sodium ions break off into
the coffee and block bitter molecules from reaching
your tongue, greatly enhancing the flavor.
Don’t have salt on hand at your neighborhood coffee
shop?Just keep a couple of these in your purse
or wallet and you’ll do just fine.
You’re starving for some bananas but all they had
at the store was a bunch of bright green ones.
Bananas can take a day or two to ripen,
but here is a quick tip to get them
up to standard really, really quick.
Put your bananas in a paper bag and throw
a couple ripe tomatoes in there.
The bananas, depending on how green
they were to start, will ripen twice as fast.
This is because of a plant hormone called ethylene
that is used to make fruits ripen faster.
When you place ripe tomatoes in the bag with the
bananas, the bag traps in the ethylene gas that
is produced by the already ripen tomatoes, which
in turn forces the bananas to ripen much faster.
Also, the riper the bananas get,
the more ethylene they produce.
You ate way too many, way too fast,
passed out on the couch and left the cookies out.
Now they’re rock hard, unappetizing,
and spoiled your plans to spoil your diet.
No problem! Here’s a little trick
that’s been passed down for generations.
If you put your cookies in a tin or large Ziploc
bag with a piece of bread, and they will be as
soft as they were when they came out of the oven.
Cookies contain far more sugar than bread.
Sugars are known to be hygroscopic – that is, they
soak up moisture from the surrounding environment.
This, along side the dense nature of cookies,
allows them to absorb moisture coming from
that piece of bread, keeping them nice and
soft for a much longer period of time.
So you didn’t feel like doing dishes
after breakfast and threw your cast iron
skillet into the sink.
When you get home, the thing is covered in rust
and you can’t bare to scrub it
with a brillo pad for a half hour.
Good news for you – open your fridge
and grab that two liter of coke.
Coke has an ingredient called phosphoric acid
that is used to add a sour punch
to the super sweet soft drink.
Funny thing is that this chemical is also used
industrially as a rust and tarnish remover!
Phosphoric acid converts your typical- hard
to clean, iron oxide rust into blackish ferric
phosphate that can easily be scrubbed right off.
Go ahead, try it for yourself.
We hope you enjoyed this first volume
of Chemistry Life Hacks and
there’s gonna’ be plenty more to come.
And if you have any tips of your own
feel free to send them our way and
we’ll put them into upcoming videos.
And while you’re still here don’t forget
to hit that there’ subscribe button.
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Chemistry Life Hacks (Vol. 1) - Reactions

10197 Folder Collection
Johnny Tsai published on January 6, 2015
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