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____ [38]
3 years ago
14

Based on the equation below, how many grams of nitrogen gas (N2) will be produced from the decomposition of one mole of sodium a

zide (NaN3)? Use a molar mass of 28.0 grams for nitrogen gas (N2).
2NaN3 → 2Na + 3N2
A. 56.0 grams
B. 42.0 grams
C. 28.0 grams
D. 18.7 grams
Chemistry
1 answer:
zhannawk [14.2K]3 years ago
4 0

Answer:

its B just did it

Explanation:

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Alex787 [66]

Answer:

18

Explanation:

12*3=36

36/2=18

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3 0
2 years ago
If a reaction vessel initially contains 5 mol S and 10 mil O2, how many moles of S will be in the reaction vessel once the react
Alex_Xolod [135]

Answer:

Explanation:

2S       +       3O₂       =       2SO₃

2moles      3 moles

2 moles of S react with 3 moles of O₂

5 moles of S will react with 3 x 5 / 2 moles of O₂

= 7.5 moles of O₂ .

O₂ remaining unreacted = 10 - 7.5 = 2.5 moles .

All the moles of S will exhausted in the reaction and 2.5 moles of oxygen will be left .  

6 0
2 years ago
What is the standard potential, e∘celle∘cell, for this galvanic cell? use the given standard reduction potentials in your calcul
Olin [163]

The standard potential for the given galvanic cell is 0.477 V

<h3>What is electrode potential?</h3>

The electrode potential is the electromotive force of a galvanic cell built using a standard reference electrode and another electrode whose potential is to be found.

There are two types of electrode potential

Oxidation potential - The potential associated with oxidation reaction is known as oxidation potential

Reduction potential - The potential associated with reduction reaction is known as reduction potential

At the anode, oxidation occurs

Sn(s)\rightarrow Sn^{2+}(aq)+2e^-

At the cathode, reduction occurs

Cu^{2+}(aq)+2e^-\rightarrow Cu(s)

E^o_{cell} =E^o_{cathode} -E^o_{anode}

        = 0.337 - (-0.140)

        = 0.477 V

Thus, The standard potential for the given galvanic cell is 0.477 V

Learn more about electrode potential:

brainly.com/question/17362810

#SPJ4

Disclaimer: The question was given incomplete on the portal. Here is the complete question

Question: What is the standard potential, E∘cell, for this galvanic cell? Use the given standard reduction potentials in your calculation as appropriate.

Sn^{2+}(aq)+2e^-\rightarrow Sn(s), E°red=−0.140 V

Cu^{2+}(aq)+2e^-\rightarrow Cu(s), E°red=+0.337 V

4 0
2 years ago
Read 2 more answers
Q1. On the Kelvin scale water freezes at 273 K and boils at 373 K.<br> True <br> False
faust18 [17]

Answer:

True

Explanation:

Water boils at 373 kelvins. ... Absolute zero is –273.15° C or –459.67° F. The "size" of a one degree change in temperature is exactly the same in the Celsius and Kelvin scales, so the freezing point of water is at a temperature of 273.15 kelvins (that is, 273.15 degrees above absolute zero

8 0
2 years ago
Calculate the rms speed of co molecules at 320 k .
mezya [45]
<span>rms = (3RT/M)^1/2 Therefore, the rms of CO is: rms(CO) = [(3)(8.3145 J/mol*K)(320 K)/(0.028 kg/mol)]^1/2 rms = [2.65x10^5 m^2/s^2]^1/2 rms = 533.9181 m/s</span>
8 0
3 years ago
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