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3 years ago

Convert 154 kPa to atmospheres

Chemistry

1 answer:

mixer [17]3 years ago

7 0

Answer:

1.51986 atm

Explanation:

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Despite the fact that the partial pressure difference is so much smaller for co2, why is there as much co2 exchanged between the

Snezhnost [94]

This is due to the solubility of CO₂ in blood is more than the solubility of Oxygen in blood

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3 years ago

Anabelle has noticed that her strawberry plants haven't produced any strawberries yet this year.

marusya05 [52]

Answer:0.260

Explanation:

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4 years ago

If a certain gas occupies a volume of 10. L when the applied pressure is 5.0 atm , find the pressure when the gas occupies a vol

lorasvet [3.4K]

Answer:

20L is the new volume

Explanation:

In this case, moles and T° from the gas remain constant. This is the formula we must apply, to solve this:

P₁ . V₁ = P₂ . V₂

5 atm . 10 L = P₂ . 2.5L

P₂ = (5 atm . 10 L) / 2.5L →20L

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3 years ago

One __________ of a substance contains the same number of molecules/atoms as in 12 grams of carbon 12

mash [69]

Answer:

"mole"

Explanation:

That is the definition of mole. Mole is a unit for the measurement of how much there is of something. In other words, in SI, 1 mol of a substance contains the same number of molecules/atoms as in 12 grams of carbon 12.

(Approximately 6.28 × 10^23 --> Avogadro's constant)

For further explanation, check out Wikipedia's article here:

https://en.m.wikipedia.org/wiki/Mole_(unit)

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4 years ago

Why is the answer C for this problem?

pshichka [43]

Answer:

$\boxed{\text{(C) X}$_{3}$P$_{2}}$

Explanation:

Step 1. Identify the Group that contains X

We look at the consecutive ionization energies and hunt for a big jump between them

$\begin{array}{crc}n & IE_{n} & IE_{n} - IE_{n-1}\\1 & 730 & \\2 & 1450 & 720\\3 & 7700 & 6250\\4 & 10500 & 2800\\\end{array}$

We see a big jump between n = 2 and n = 3. This indicates that X has two valence electrons.

We can easily remove two electrons, but the third electron requires much more energy. That electron must be in the stable, filled, inner core.

So, X is in Group 2 and P is in Group 15.

Step 2. Identify the Compound

X can lose two valence electrons to reach a stable octet, and P can do the same by gaining three electrons.

We must have 3 X atoms for every 2 P atoms.

The formula of the compound is $\boxed{\text{X}$_{3}$P$_{2}}$}$ .

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3 years ago