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3 years ago

WHAT ARE SOME FUN ALCHSELTER EXPERIMENTS?

Chemistry

1 answer:

Vesna [10]3 years ago

4 0

You can put an egg in Vinegar an egg in Olive oil

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A 13 g sample of P4010 contains how many

Alex777 [14]

Answer:

$\large \boxed{5.5 \times 10^{22}\text{ molecules of P$_{2}$O}_{5}}$

Explanation:

You must calculate the moles of P₄O₁₀, convert to moles of P₂O₅, then convert to molecules of P₂O₅.

1. Moles of P₄O₁₀

$\text{Moles of P$_{4}$O}_{10} = \text{13 g P$_{4}$O}_{10} \times \dfrac{\text{1 mol P$_{4}$O}_{10}}{\text{283.89 g P$_{4}$O}_{10}} = \text{0.0458 mol P$_{4}$O}_{10}$

2. Moles of P₂O₅

P₄O₁₀ ⟶ 2P₂O₅

The molar ratio is 2 mol P₂O₅:1 mol P₄O₁₀

$\text{Moles of P$_{2}$O}_{5} = \text{0.0458 mol P$_{4}$O}_{10} \times \dfrac{\text{2 mol P$_{2}$O}_{5}}{\text{1 mol P$_{4}$O}_{10}} = \text{0.0916 mol P$_{2}$O}_{5}$

3. Molecules of P₂O₅

$\text{No. of molecules} = \text{0.0916 mol P$_{2}$O}_{5} \times \dfrac{6.022 \times 10^{23}\text{ molecules P$_{2}$O}_{5}}{\text{1 mol P$_{2}$O}_{5}}\\\\= \mathbf{5.5 \times 10^{22}}\textbf{ molecules P$_{2}$O}_{5}\\\text{There are $\large \boxed{\mathbf{5.5 \times 10^{22}}\textbf{ molecules of P$_{2}$O}_{5}}$}$

6 0

3 years ago

I need help with this question...<br>

ivanzaharov [21]

I’m guessing the answer is AX (the first one) sorry if I am wrong tho

5 0

3 years ago

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Which term defines the following: moles of solute mass of solvent in kg?

kramer

The answer is B. molality

7 0

3 years ago

The last group on the periodic table is called the noble gases. The elements in this group are

Anni [7]

Answer:

Explanation:

They are stabil and full of valence electron.

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3 years ago

Frieda makes a pyramid of oranges for a display at the grocery store. A few minutes later, Corwin bumps into the display and the

olga_2 [115]

Answer:

Melting!!!

Explanation:

Melting is just like this. When a solid's atoms are in place, they are like the oranges before - Carefully organized, not moving much, in a structure.

When a solid starts melting into a liquid, the molecules start bouncing off each other, collapsing. :)

So, the answer is <u>Melting!</u>

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3 years ago

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