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Pani-rosa [81]
3 years ago
11

Will give brainliest please help!!

Chemistry
1 answer:
amm18123 years ago
3 0

Answer:

I think it's B so maybe

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Why do you use 6.02*10^23 here?? #21???
almond37 [142]
6.02*10^23 is Avagadro's number representing the number of molecules per mole of substance.
6 0
3 years ago
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2Na3N3 -&gt; 2Na + 3N2<br><br> if 0.58 mol if NaN3 reacts, what mass of nitrogen would result
Ronch [10]

Answer:

                      Mass = 24.36 g of N₂

Explanation:

                   The balance chemical equation for the decomposition of NaNO₃ is as follow;

                                           2 NaN₃ → 2 Na + 3 N₂

Step 1: Find moles of N₂ as;

According to equation,

                 2 moles of NaNO₃ produces  =  3 moles of N₂

So,

              0.58 moles of NaNO₃ will produce  =  X moles of N₂

Solving for X,

                      X = 3 mol × 0.58 mol / 2 mol

                      X = 0.87 mol of N₂

Step 2: Calculate mass of N₂ as,

Mass = Moles × M.Mass

Mass = 0.87 mol × 28.01 g/mol

Mass = 24.36 g of N₂

8 0
3 years ago
1.
Dahasolnce [82]

Answer:

22.5moles

Explanation:

using mole ratio,n(CO2)/n(o)=1/2

n(CO2)=1/2n(02)

n(CO2)=1/2×45

moles of carbon dioxide produced is 22.5moles

8 0
2 years ago
Calculate the volume of .987 mol of gas at stp will occupy
aalyn [17]
Number of moles = volume / (molar volume)
Molar volume at stp = 22.4 dm^3
Volume = no of moles × molar volume
= 0.987 × 22.4
= 22.1088 dm^3
= 22108.8 cm^3

Hope it helped!
5 0
3 years ago
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What is it called when energy transfers between objects until they reach the same temperature and their particles move at the sa
wel
I think it is kinetic 
enrgy
6 0
3 years ago
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