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Volgvan
3 years ago
14

How do you convert a temperature from Celsius to kelvin?

Chemistry
1 answer:
kkurt [141]3 years ago
3 0

Answer:

Kelvin = Celsius + 273.15

Explanation:

Instead of 273.15 you can use just 273 as well

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What is the maximum mass in grams of NH3 that can be produced by the reaction of of 2.5 g N2 with 2.5 g of H2 via the equation b
andrezito [222]

Answer: The mass of NH_3 produced is, 3.03 grams.

Explanation : Given,

Mass of N_2 = 2.5 g

Mass of H_2 = 2.5 g

Molar mass of N_2 = 28 g/mol

Molar mass of H_2 = 2 g/mol

First we have to calculate the moles of N_2 and H_2.

\text{Moles of }N_2=\frac{\text{Given mass }N_2}{\text{Molar mass }N_2}=\frac{2.5g}{28g/mol}=0.089mol

and,

\text{Moles of }H_2=\frac{\text{Given mass }H_2}{\text{Molar mass }H_2}=\frac{2.5g}{2g/mol}=1.25mol

Now we have to calculate the limiting and excess reagent.

The balanced chemical equation is:

N_2(g)+3H_2(g)\rightarrow 2NH_3(g)

From the balanced reaction we conclude that

As, 1 mole of N_2 react with 3 mole of H_2

So, 0.089 moles of N_2 react with 0.089\times 3=0.267 moles of H_2

From this we conclude that, H_2 is an excess reagent because the given moles are greater than the required moles and N_2 is a limiting reagent and it limits the formation of product.

Now we have to calculate the moles of NH_3

From the reaction, we conclude that

As, 1 mole of N_2 react to give 2 mole of NH_3

So, 0.089 mole of N_2 react to give 0.089\times 2=0.178 mole of NH_3

Now we have to calculate the mass of NH_3

\text{ Mass of }NH_3=\text{ Moles of }NH_3\times \text{ Molar mass of }NH_3

Molar mass of NH_3 = 17 g/mole

\text{ Mass of }NH_3=(0.178moles)\times (17g/mole)=3.03g

Therefore, the mass of NH_3 produced is, 3.03 grams.

6 0
3 years ago
The table below shows the role of different substances during photosynthesis.
RoseWind [281]
A I think I could be wrong I’m not good at this
6 0
3 years ago
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Down there (pls hurryy!!)
ivanzaharov [21]

Answer:

E

Explanation:

Hope this helps!

5 0
3 years ago
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Which metal would have more luster, zinc (30) or scandium (21)?​
Leya [2.2K]

Answer:

i say zinc would

Explanation:

3 0
3 years ago
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Write an equation that represents the action in water of rubidium hydroxide as an Arrhenius base.
Anika [276]

Answer:

RbOH  → Rb⁺ +  OH⁻

As the hydroxide can gives the OH⁻ in water, it is considered as an Arrhenius's base

Explanation:

Arrhenius theory states that a compound is considered a base, if the compound can generate OH⁻ ions in aqueous solution.

Our compound is the RbOH.

When it is put in water, i can dissociate like this:

RbOH  → Rb⁺ +  OH⁻

As the hydroxide can gives the OH⁻ in water, it is considered as an Arrhenius's base

3 0
3 years ago
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