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Julli [10]
2 years ago
12

A gas under a pressure of 9.86 kPa and at a temperature of 75°C occupies a 500.0L container. How many moles of gas are in the co

ntainer?​
Chemistry
1 answer:
Lady bird [3.3K]2 years ago
8 0

Answer:

1.7 mol

Explanation:

This is an ideal gas problem. So many units! That's the tip-off usually.

PV=nRT

First convert kPA to atm 1 atm=101.3 kPA so 9.86/101.3 = .097311 atm

(.097311 atm x 500L) = n · 0821 L·atm/mol·K · 348K

Do your multiplication then divide to get n alone and you should get 1.7 mol

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What mass of nitrogen monoxide is formed in the reaction of 869kg ammonia and 2480kg oxygen gas? (Please show work)
USPshnik [31]

Answer:

1533.6 kg NO

Explanation:

The reaction that takes place is:

  • 4NH₃ + 5O₂ → 4NO + 6H₂O

First we <u>convert the masses of ammonia (NH₃) and oxygen gas (O₂) into moles</u>, using<em> their respective molar masses</em>:

  • NH₃ ⇒ 869 kg ÷ 17 kg/kmol = 51.12 kmol NH₃
  • O₂ ⇒ 2480 kg ÷ 32 kg/kmol = 77.5 kmol O₂

77.5 kmol of O₂ would react completely with (77.5 kmol O₂ * \frac{4kmolNH_3}{5kmolO_2}) 62 kmol of NH₃. There are not as many kmol of NH₃, so NH₃ is the limiting reactant.

Now we <u>calculate how many kmol of NO are produced</u>, using the <em>limiting reactant moles</em>:

  • 51.12 kmol NH₃ * \frac{4kmolNO}{4kmolNH_3} = 51.12 kmol NO

Finally we <u>convert kmol of NO to mass</u>, using its<em> molar mass</em>:

  • 51.12 kmol NO * 30 kg/kmol = 1533.6 kg NO
6 0
2 years ago
Most thermal conductors are made of which material?
In-s [12.5K]

Answer:

copper

Explanation:

5 0
2 years ago
Mention one metal that doesn't burn or form oxide when heated in air​
Kitty [74]

Answer:

Gold, Platinum, Silver, Ruthenium

5 0
2 years ago
Consider the tetrahedral intermediate and the two leaving groups, methoxide and amide anion. does this reaction favor reactants
mamaluj [8]

The reaction of tetrahedral intermediate and the two leaving groups, methoxide and amide anion favour product.

<h3>What is leaving group? </h3>

A leaving group is a group of atoms or an atom which is able to break away from a molecule as a stable species or with a lone pair, breaking the bond between the molecule and itself.

<h3>What is intermediate? </h3>

A stage is come before forming product. This stage is termed as transition stage and the reactant at this stage is termed as intermediate.

According to Le Châtelier's Principle, a reactions always tend towards the equilibrium, the reaction produces more products from the excess reactant, that's why it causing the system to shift to the left which allows the system to reach equilibrium.

Due to this reason, this reaction shift towards product.

Thus, we concluded that the reaction of tetrahedral intermediate and the two leaving groups, methoxide and amide anion favour product.

learn more about equilibrium:

brainly.com/question/12920261

#SPJ4

4 0
1 year ago
Hydrogen bonds acts between
dem82 [27]

ydrogen-bonding occurs when an atom of hydrogen is attracted by very strong forces to two groups of atoms instead of only one, it may be considered to be acting as a bond between them.

7 0
3 years ago
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