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lora16 [44]
2 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]2 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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Answer:

15.0 µm

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Density = mass/volume

        D = m/V     Multiply each side by V

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        V = m/D

Data:

m = 1.091 g

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w = 10.0 cm

Calculation:

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V = 1.091 g  × (1 cm³/7.28 g)

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(b) <em>Thickness of foil </em>

The foil is a rectangular solid.

V  = lwh                            Divide each side by lw

h = V/(lw)

   = 0.1499/(10 × 10)

   = 1.50 × 10⁻³ cm           Convert to millimetres

   = 0.015 mm                  Convert to micrometres

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4 0
3 years ago
What does applied chemistry have to do with making ice cream?
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