1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
inysia [295]
3 years ago
5

how many liters of nitrogen gas are needed to react with 90.0 g of potassium at STP in order to produce potassium nitride accord

ing to the following reactions?
Chemistry
2 answers:
Snezhnost [94]3 years ago
7 0
The atomic mass of potassium is 19 g/mol
90.0 g of potassium contains ;
   = 90.0/19 
   = 4.737 moles
The reaction between potassium and nitrogen is given by the equation;
 6K + N2 = 2K3N
The mole ratio of potassium and nitrogen is 6:1
The number of moles of nitrogen;
    = 4.737/6
    = 0.7895 moles
But, 1 mole of nitrogen occupies 22.4 liters at STP
Therefore; 0.7895 moles × 22.4 liters
                 = 17.685 liters

MaRussiya [10]3 years ago
7 0

Answer:8.59L

Explanation:

The other answer has all the right steps but the atomic mass of potassium is actually 39.098 not 19.

You might be interested in
Explain in terms of chemical reactivity why the elements in group 18 on the modern periodic table were not identified by Mendele
Makovka662 [10]

Answer:

elements tend not to react with other elements, there were no oxide compounds for Mendeleev to study. –Group 18 elements are generally unreactive. sodium ion is smaller because the sodium atom lost one electron. –An Na+ ion is smaller because it has one fewer electron shell.

Explanation:

can you me as brainliest if its right? i just need a few more to rank up! ^-^

Also have a great day and good luck in your studies!

6 0
2 years ago
What is the volume of 2.268mol of oxygen gas at 35○C and 3.0atm?
Eduardwww [97]
The volume is 

3 x_{123}
6 0
3 years ago
Element X consist of two isotopes with masses of 62.9 and 64.9. The relative atomic mass of the element is 63.6. What is th
koban [17]

Answer:

it is 50%

Explanation:

62.9x50=3145

64.9x50=3245

3245+3145=6390

6390/100=63.9

4 0
2 years ago
How many atoms of oxygen are in a molecule of glucose (C6H12O6)?
ICE Princess25 [194]

Answer:

There are 6 oxygen atoms.

Explanation:

Glucose has a chemical formula of: C6H12O6 That means glucose is made of 6 carbon atoms, 12 hydrogen atoms and 6 oxygen atoms.

hope this helps

8 0
2 years ago
From the list below, determine which properties are for compounds. I. It takes a large amount of energy to separates the element
marshall27 [118]
All of them are properties of compounds except III.

for I, compounds are chemically combined together, so to separate them, we must use chemical methods like electrolysis or applying heat. These requires large amount of energy.

For II, they're always fixed. For example, in water (H2O), the ratio of hydrogen and oxygen is always 1:8 in mass. If there's some extra added, the substance becomes mixture instead of compounds.

For IV, after you chemically combined elements or compounds together, their properties are completely different. For example, iron can be attracted to magnets, but iron II sulphide does not.
5 0
3 years ago
Read 2 more answers
Other questions:
  • When cellular respiration occurs, food energy is converted into chemical energy in the way of ATP, ______ and _____ are the prod
    11·2 answers
  • Determine the number of protons, neutrons, and electrons in the following isotopes that are used in medical diagnoses: (a) atomi
    9·1 answer
  • What is the molarity of 500 ml of a solution containing 85.0g AgNO3? A) 0.5 M B) 1.0 M C) 2.0 M D) 5.0 M
    6·1 answer
  • As long as there is some residual liquid present after equilibrium is reached, the vapor pressure of a liquid at any given tempe
    12·1 answer
  • Copy and balance these chemical equations "K​
    9·1 answer
  • Show the reaction sequences that explain these transformations
    11·1 answer
  • In a first order decomposition, the constant is 0.00813 sec-1. What percentage of the compound has decomposed after 44.1 seconds
    15·1 answer
  • What is the name given to the group 0 elements
    9·1 answer
  • Na2O + H2O =&gt; NaOH *<br> Your answer<br> Balancing equations only the coefficient ratios
    9·1 answer
  • Need help ASAP <br> Ahsb
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!