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ASHA 777 [7]
3 years ago
11

I need help with this question. Thank you.

Chemistry
1 answer:
marishachu [46]3 years ago
3 0
There are 76 atoms in total
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5f2 (g) + 2nh3 (g) → n2f4 (g) + 6hf (g) if you have 58.5g nh3, how many grams of f2 are required for a complete reaction? how ma
xxTIMURxx [149]
5F2 +2NH3 = N2f4 + 6HF

moles = mass/molar mass
mass =molar mass x mole

a)   moles of Nh3 = 58.5/17 = 3.44 moles
the mole  ratio of F2:NH3 = 5:2
the moles of F2 =3.44x5/2=8.6 moles
mass= 8.6 x 38 = 326.8 grams  of F2

B) moles of Hf = 3.89/20 = 0.1945 moles
mole ratio NH3:Hf =  2:6
moles of  NH3 = 0.1945 x2/6 = 0.0648 moles
mass =0.0648 x17 = 1.102 grams of NH3

C) moles of f2 = 217/38 =5.711 moles
mole ratio N2F6:F2 = 5:1
moles of N2F4 =5.711 x1/5 =1.142 moles
mass = 1.142 x104 = 118.77 grams of N2F4
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3 years ago
What is earths spheres
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Geosphere >> Which is Earth's entire solid body..

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Atmosphere >> Which is the few layers of "gasses" that are surrounding Earth..

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6 0
4 years ago
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What is the primary pigment found in the chlotopast​
Lady_Fox [76]

Answer: Chlorophyll is a green photosynthetic pigment found in plants, algae, and cyanobacteria.

Chlorophyll absorbs mostly in the blue and to a lesser extent red portions of the electromagnetic spectrum, hence its intense green color.

Green substance in producers that traps light energy from the sun, which is then used to combine carbon dioxide and water into sugars in the process of photosynthesis Chlorophyll is vital for photosynthesis, which helps plants get energy from light.

Chlorophyll molecules are specifically arranged in and around pigment protein complexes called photosystems, which are embedded in the thylakoid membranes of chloroplasts.

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3 years ago
How to name the hydrocarbons? according to IUPAC i guess?​
jeka94

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hydrocarbons are compounds which contains Hydrogen and carbon

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For the reaction represented by the equation AgNO3 + NaCl ® NaNO3 + AgCl,
sergeinik [125]

Answer:

7

Explanation:

7 mol AgCL * \frac{1 mol AgNO3}{1 mol AgCl}

You can cancel out the "mol AgCl" to get 7 moles of AgNO3

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