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
Margaret [11]
3 years ago
10

Consider the reaction of 2.5 grams of Li (s) reacting with 0.5 grams of N2 (g) to produce Li3N (s). A) How many total grams of L

i3 N (s) would be produced? B) Which of the starting elements is the limiting reagent, and how many grams of the non-limiting reagent remain after the reaction has completed?
Chemistry
1 answer:
vaieri [72.5K]3 years ago
4 0

Answer:

A) The amount in grams of Li₃N produced is 1.243 g

B) N₂, is the limiting reagent

The mass of the non-limiting reagent, Li, remaining after the reaction is completed is 1.757 g

Explanation:

The given parameters are;

The mass of Li(s) = 2.5 grams

The mass of N₂ (g) = 0.5 grams

The chemical equation for the reaction can be presented as follows;

6 Li (s) + N₂ (g) → 2 Li₃N

Therefore, 6 moles of Li reacts with 1 mole of N₂  to produce 2 moles of Li₃N

The molar mass of Li = 6.941 g/mol

The molar mass of N₂ = 28.0134 g/mol

The number of moles of a reactant or product, n is given by the relation;

n = Mass of substance/(Molar mass of the substance)

For lithium, Li, n = 2.5/6.941 = 0.3602 moles

For Nitrogen gas, N₂, n = 0.5/28.0134  = 0.01785 moles

A) Given that 1 mole of  N₂ to produces 2 moles of Li₃N

0.01785  moles of  N₂ will produces 2×0.01785 = 0.0357 moles of Li₃N

The molar mass of Li₃N = 34.83 g/mol

The mass of Li₃N = 34.83 g/mol × 0.0357 moles = 1.243 g

B) 6  moles of Li reacts with 1 mole of N₂ to produce 2 moles of Li₃N

0.3602 moles will reacts with 1/6×0.3602 = 0.06003 mole of N₂

Therefore, N₂, is the limiting reagent and we have;

0.01785  moles of  N₂ will react with 6×0.01785 = 0.1071  moles of Li

The number of of moles of Li left = 0.3602 - 0.1071 =0.2531 moles

The mass of lithium left = 0.2531 moles × 6.941 g/mol = 1.757 g

The mass of lithium remaining after the reaction is completed = 1.757 g.

You might be interested in
Calculate the number of grams of Hydrogen required to produce 5.73 grams of water. 2H2+O2--->2H2O 2 grams 0.636 grams 1.2 gra
rusak2 [61]

Explanation:

32

2H

2

+O

2

→2H

2

O

Molecular mass of H

2

=2 g/mol

Molecular mass of O

2

=32 g/mol

From the balanced chemical equation,

2×2=4 g of hydrogen requires 32 g of Oxygen to react completely

3 0
3 years ago
What happens to the molecules when you heat a solid
Elena-2011 [213]
The molecules vibrate faster and space between atoms increase
8 0
3 years ago
Read 2 more answers
Select all that apply. According to scientists, the distribution of volcanoes throughout the world… Is fairly even and widesprea
Ipatiy [6.2K]
Only answers C and D would make sense in this question. Hope I helped please give brainiest!
7 0
3 years ago
Read 2 more answers
What do you think an animal needs to live?
Drupady [299]

Food, water, and shelter are the three basic needs to the means of life.

6 0
3 years ago
Read 2 more answers
Can someone plz help me with this because I do not understand it ASP
AlladinOne [14]

Answer:

I'm not the best at chemistry but from what I remember you need to balance the equation and you need the arrows. It wants you to use double displacement and so thats the definition im assuming.

Explanation:

An example would be

Na2SO4 + SrCl2 --> 2 NaCl + SrSO4

This is a balanced equation.

https://en.intl.chemicalaid.com/tools/equationbalancer.php

This link will help you balance an equation.

Hopefully this helps I appologize if it doesn't.

4 0
3 years ago
Other questions:
  • The elements C and Se have the same electronegativity value, 2.55. Which of the following claims about the compound that forms f
    9·1 answer
  • Consider n2 (g) + 3h2 (g) →→ 2nh3 (g). what is the mass of nitrogen gas required to react with 0.129 g h2?
    11·1 answer
  • Which element would you expect to behave the most like carbon (C)?
    8·2 answers
  • What is the total number of moles represented by 20 grams of CACO3
    6·1 answer
  • A biochemist is attempting to replicate a chemical reaction that commonly takes place in cells. during the chemical reaction, st
    10·1 answer
  • _____ energy is energy available to do work.
    15·2 answers
  • Rank these hydrocarbons in order from predicted highest boiling point to lowest boiling point: Rank from highest boiling point t
    12·2 answers
  • Geckos and some other animals can climb smooth surfaces. Which of these explanations of this
    12·2 answers
  • Could someone help me with this? No links, will give brainliest.
    9·1 answer
  • Trees, solar energy, and water are examples of:
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!