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dmitriy555 [2]
3 years ago
14

How many moles are equivalent to 300.0 grams of Uranium?

Chemistry
1 answer:
Sveta_85 [38]3 years ago
8 0

Answer:

There are 1.260 moles for every 300.0 grams of Uranium

Explanation:

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Dry ice changes from a solid directly into a gas at room temperature. Sublimation is the transition of a substance directly from
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Answer:

The process in which a solid changes directly to a gas is called sublimation. It occurs when the particles of a solid absorb enough energy to completely overcome the force of attraction between them. Dry ice (solid carbon dioxide, CO2) is an example of a solid that undergoes sublimation.

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3 years ago
Calculate the energy released when 24.8 g Na2O reacts in the following reaction
WARRIOR [948]

Answer:

hey you wanna get it right try this one: 48.0 kcal

was released... at constant pressure.

Explanation:

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Relate what you've learned about the cell to how we inherit traits from our parents. Include the following vocab words, : nucleu
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Hope this helps!
5 0
3 years ago
Read 2 more answers
The solubility of N2 in blood at 37°C and a partial pressure of 0.80 atm is 5.6 ✕ 10−4 mol·L−1. A deep-sea diver breathes compre
marysya [2.9K]

Answer:

0.0126 moles are released

Explanation:

Using Henry's law, where the amount of dissolved gas in a liquid is proportional to its partial pressure above the liquid:

S = k×P

<em>Where S is solubility (5.6x10⁻⁴molL⁻¹), k is Henry's constant and P is partial pressure (0.80atm)</em>

Replacing:

<em>5.6x10⁻⁴molL⁻¹ / 0.80atm = 7x10⁻⁴molL⁻¹atm⁻¹</em>

Thus, with Henry's constant, solubility of N₂ when partial pressure is 3.8atm is:

S = 7x10⁻⁴molL⁻¹atm⁻¹ × 3.8atm

S = 2.66x10⁻³molL⁻¹

Thus, when the deepd-sea diver has a pressure of 3.8amt, moles dissolved are:

6.0L × 2.66x10⁻³molL⁻¹ = <em>0.01596 moles of N₂</em>

At the surface, pressure is 0.80atm and solubility is 5.6x10⁻⁴molL⁻¹, moles dissolved are:

6.0L × 5.6x10⁻⁴molL⁻¹ = <em>3.36x10⁻³mol</em>

Thus, released moles are:

0.01596mol - 3.36x10⁻³mol = <em>0.0126 moles are released</em>

8 0
3 years ago
muriatic acid is the commercial name for hydrochloric acid that can be purchased from hardware stores as a solution that is 30%(
SSSSS [86.1K]
We have 30% (w/w) HCl this means : 
               100 g solution contains 30 g HCl
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By cross multiplication:
Mass of solution = \frac{100 x 7.5 }{30} = 25 g solution
5 0
3 years ago
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