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
Rasek [7]
3 years ago
11

The molar mass of an unknown material is 78.430 g/mol. What is the mass of half of a mole of the unknown material?

Chemistry
2 answers:
krek1111 [17]3 years ago
6 0

Answer:

hoy

Explanation:

True [87]3 years ago
6 0

Answer:

39.215g

Explanation:

Molae mass means mass in 1 mole.

If 78.430g is in 1 mole

Xg is in 0.5 mole

cross multiply

X x 1 = 78.430 x 0.5

X = 39.215 g

You might be interested in
Are pickles a type of a fruit
zheka24 [161]

Technically, pickles may be considered both a fruit and a vegetable. While they are made from cucumbers, which are a vegetable, the U.S. Supreme Court ruled them a ‘fruit of the vine’ because of their seeds.

3 0
3 years ago
What is the best kind of cleaning agent to use for cleaning burned-on grease?
lakkis [162]

soap and water would be the best soak it in water for 20 miuntes then wash it

4 0
4 years ago
Read 2 more answers
Calculate the value of [N2]eq if [H2]eq = 2.0 M, [NH3]eq = 0.5 M, and Kc = 2.N2(g) + 3 H2(g) ↔ 2 NH3(g)0.062 M62.5 M0.40 M0.016
Sloan [31]

Answer:

[ N₂(g) ]  = 0.016 M

Explanation:

N₂(g) + 3 H₂(g) ↔ 2 NH₃(g)

The equilibrium constant for the above reaction , can be written as the product of the concentration of product raised to the power of stoichiometric coefficients in a balanced equation of dissociation divided by the product of the concentration of reactant raised to the power of stoichiometric coefficients in the balanced equation of dissociation .  

Hence ,  

Kc = [ NH₃ (g) ]² / [ N₂(g) ]  [ H₂(g) ]³

From the question ,

[ NH₃ (g) ] = 0.5 M

[ N₂(g) ] = ?

[ H₂(g) ] = 2.0 M

Kc = 2

Now, putting it in the above equation ,  

Kc = [ NH₃ (g) ]² / [ N₂(g) ]  [ H₂(g) ]³

2 =  [ 0.5 M ]² / [ N₂(g) ]  [ 2.0 M ]³

[ N₂(g) ]  = 0.016 M .

3 0
3 years ago
How do everyday activities like driving a car and using electricity lead to global warming
natima [27]
They produce a temporary surge of CO2 which is assimilated by flora and results in temp growth rate flux
4 0
4 years ago
The structure of DNA resembles a twisted ladder. Determine the structural components that form the rungs of the ladder.
Mamont248 [21]
The structural components that form the rungs of the ladder are the nitrogeneous bases of the DNA molecule. These bases are adenine, guanine, cytosine and thymine. Hope this answers the question. Have a nice day.
6 0
3 years ago
Read 2 more answers
Other questions:
  • What takes place in organelles called chloroplasts
    6·1 answer
  • How are continental drift and plate tectonics related
    14·2 answers
  • Consider the reaction below.
    5·2 answers
  • Be sure to answer all parts. In the average adult male, the residual volume (RV) of the lungs, the volume of air remaining after
    10·1 answer
  • Since the number of atoms in a substance is so large , a unit to count them was created. This unit is the number of atoms in 12
    12·2 answers
  • Arguments in favor of renewable energy
    9·1 answer
  • The temperature reading of –14°C corresponds to a Kelvin reading of
    13·2 answers
  • The basis of an covalent bond is
    5·1 answer
  • What is the molar mass of a substance?
    10·1 answer
  • Convert the following into balanced equations:
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!