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3 years ago

How many liters is equal to 2,000 mL

Chemistry

1 answer:

makkiz [27]3 years ago

8 0

Answer:

Explanation:

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How many moles in Co are there in 6 billion Co atoms

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Hello there!

 Use Avogadro's number, 1 mol = 6.02 x 10^23 atoms.
Convert atoms to moles and you get:

9.97x10^(-15) moles Co

Hope This Helps You!
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3 years ago

How does the reaction of iodine with the potato cells?

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In 2.5 mole SO42−, there are

Murrr4er [49]

Answer:

in 2.5 mole SO42 there are 25 Eq

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3 years ago

N2(g) + 3H2(g) → 2NH3(g) How many grams of N2 are required to produce 240.0g NH3?

just olya [345]

Answer:

$\large \boxed{\text{197.4 g}}$

Explanation:

We will need a chemical equation with masses and molar masses, so, let's gather all the information in one place.

Mᵣ: 28.01 17.03

N₂ + 3H₂ ⟶ 2NH₃

m/g: 240.0

(a) Moles of NH₃

$\text{Moles of NH}_{3} = \text{240.0 g NH}_{3}\times \dfrac{\text{1 mol NH}_{3}}{\text{17.03 g NH}_{3}}= \text{14.09 mol NH}_{3}$

(b) Moles of N₂

$\text{Moles of N$_{2}$} = \text{14.09 mol NH}_{3} \times \dfrac{\text{1 mol N$_{2}$}}{\text{2 mol NH}_{3}} = \text{7.046 mol N$_{2}$}$

(c) Mass of N₂

$\text{Mass of N$_{2}$} =\text{7.046 mol N$_{2}$} \times \dfrac{\text{28.01 g N$_{2}$}}{\text{1 mol N$_{2}$}} = \textbf{197.4 g N$_{2}$}\\\\\text{The reaction requires $\large \boxed{\textbf{197.4 g}}$ of N$_{2}$}$

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3 years ago

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Summarize the process a scientist goes through to come up with a satisfactory solution.

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Guess and check, test, trial and error, completion.

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