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lora16 [44]
3 years ago
6

What mass of helium is in a 2.00 L balloon at STP? pls help me lol

Chemistry
1 answer:
sertanlavr [38]3 years ago
3 0

Once upon a time there was a lovely

                        princess. But she had an enchantment

                        upon her of a fearful sort which could

                        only be broken by love's first kiss.

                        She was locked away in a castle guarded

                        by a terrible fire-breathing dragon.

                        Many brave knights had attempted to

                        free her from this dreadful prison,

                        but non prevailed. She waited in the

                        dragon's keep in the highest room of

                        the tallest tower for her true love

                        and true love's first kiss. (laughs)

                        Like that's ever gonna happen. What

                        a load of - (toilet flush)

              Allstar - by Smashmouth begins to play. Shrek goes about his

              day. While in a nearby town, the villagers get together to go

              after the ogre.

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One \mu mis 10^{-6}m , hence one \mu m^2 is 10^{-12}m^2, thus 1.50\mu m^2 is 1.50\cdot10^{-12}\mu m^2
4 0
3 years ago
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Calculate the number of molecules present in 0.5 mole of water​
Aleksandr-060686 [28]

Explanation:

Mole = 0.5 = n/NA

n = no. of molecule

NA = avogadro number = 6.023x 10^23

so

N/NA = 0.5

N = 0.5 x 6.023 x 10^23

N = 3.0115 x 10^23

6 0
3 years ago
The actual yield of a product in a reaction was measured as 4.20 g. If the theoretical yield of the product for the reaction is
Dmitry_Shevchenko [17]

Answer:

3

Explanation:

remember the equation percentage yield = actual/ theoretical yield as

4.20/4.88 x 100

86.065 so 86.1.

hope this make sense:)

3 0
2 years ago
Help I'm giving you a lot of points and do not put random or crazy stuff the real question
dybincka [34]

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Endothermic

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