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yKpoI14uk [10]
3 years ago
5

2. What volume will 3.00 moles of nitrogen gas occupy at STP?

Chemistry
1 answer:
Amiraneli [1.4K]3 years ago
4 0

Answer:

Answer: V=67.2 L

Explanation:

Ideal Gas Law: PV=nRT

P=1.00 atm (STP)

V=?

n=3.00 mol

R=0.08206Latm/Kmol

T=273.15 K (STP)

To find V, we would manipulate the equation to V=nRT/P

With significan figures, our answer is V=67.2 L.

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PLS HELP!! <br> Balance this equation: __H2+ 2 O2---&gt; 2 H2O
alekssr [168]

Answer:

 2H₂   +   O₂  →   2H₂O

Explanation:

The expression of the equation is given as:

              _H₂   +   2O₂  →   2H₂O

Now for expression above,

                           Reactants                                          Products

H                              2                                                            4

O                              4                                                           2

to balance the equation, we use 2 moles of hydrogen gas and 1 mole of oxygen gas;

           2H₂   +   O₂  →   2H₂O

6 0
3 years ago
11. How many grams of O2 are required to produce 36.9 grams of ZnO?<br> 22n +102 → 2ZnO
Fittoniya [83]

Answer:

Mass = 7.2 g

Explanation:

Given data:

Mass of ZnO = 36.9 g

Mass of oxygen needed = ?

Solution:

Chemical equation:

2Zn + O₂ → 2ZnO

Number of moles of ZnO:

Number of moles = Mass/ molar mass

Number of moles = 36.9 g/81.38 g/mol

Number of moles = 0.45 mol

Now we will compare the moles of ZnO with oxygen:

                      ZnO           :           O₂

                         2             :            1

                      0.45           :       1/2 × 0.45 = 0.225

Mass of oxygen:

Mass = number of moles × molar mass

Mass = 0.225 mol × 32 g/mol

Mass = 7.2 g

3 0
3 years ago
What are the metal things on the side o the road called
elena55 [62]
They are called guard rails
5 0
3 years ago
Read 2 more answers
In designing the experiment, the researchers used which type of 32p labeled atp?.
lilavasa [31]

In designing the experiment, the researchers used Y32P-ATP.

<h3>What is ATP?</h3>

Adenosine triphosphate (ATP) is an organic substance and a hydro-trope that provides energy for a variety of functions in

  • living cells
  • including muscular contraction
  • nerve impulse propagation
  • condensate dissolving
  • and chemical synthesis

Researchers used Y32P-ATP Because the Y-phosphate of ATP is used for phosphoryl transfer by kinases. As a result, Y32P-ATP is required for the experiment.

Hence the used ATP is Y32P-ATP.

To know more about ATP, visit the below link:

brainly.com/question/893601

#SPJ1

3 0
2 years ago
Which type of orbit does the earth have with the sun ?
777dan777 [17]

Answer:

elliptical orbit

7 0
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