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
d1i1m1o1n [39]
3 years ago
15

How many moles are present in 418.9 grams of mohr salt

Chemistry
1 answer:
aniked [119]3 years ago
4 0

Answer: Incomplete/half answer

Explanation:

  grams of              molar mass of the

     substance                     substance in grams

–––––––––––  =  –––––––––––––––

moles of the

substance                      one mol

use this formula to asnwer the question

You might be interested in
From the value Kf=1.2×109 for Ni(NH3)62+, calculate the concentration of NH3 required to just dissolve 0.016 mol of NiC2O4 (Ksp
Nina [5.8K]

<u>Answer:</u> The concentration of NH_3 required will be 0.285 M.

<u>Explanation:</u>

To calculate the molarity of NiC_2O_4, we use the equation:

\text{Molarity of the solution}=\frac{\text{Moles of solute}}{\text{Volume of solution (in L)}}

Moles of NiC_2O_4 = 0.016 moles

Volume of solution = 1 L

Putting values in above equation, we get:

\text{Molarity of }NiC_2O_4=\frac{0.016mol}{1L}=0.016M

For the given chemical equations:

NiC_2O_4(s)\rightleftharpoons Ni^{2+}(aq.)+C_2O_4^{2-}(aq.);K_{sp}=4.0\times 10^{-10}

Ni^{2+}(aq.)+6NH_3(aq.)\rightleftharpoons [Ni(NH_3)_6]^{2+}+C_2O_4^{2-}(aq.);K_f=1.2\times 10^9

Net equation: NiC_2O_4(s)+6NH_3(aq.)\rightleftharpoons [Ni(NH_3)_6]^{2+}+C_2O_4^{2-}(aq.);K=?

To calculate the equilibrium constant, K for above equation, we get:

K=K_{sp}\times K_f\\K=(4.0\times 10^{-10})\times (1.2\times 10^9)=0.48

The expression for equilibrium constant of above equation is:

K=\frac{[C_2O_4^{2-}][[Ni(NH_3)_6]^{2+}]}{[NiC_2O_4][NH_3]^6}

As, NiC_2O_4 is a solid, so its activity is taken as 1 and so for C_2O_4^{2-}

We are given:

[[Ni(NH_3)_6]^{2+}]=0.016M

Putting values in above equations, we get:

0.48=\frac{0.016}{[NH_3]^6}}

[NH_3]=0.285M

Hence, the concentration of NH_3 required will be 0.285 M.

7 0
3 years ago
How does the equilibrium change to counter the removal of A in this reaction? A + B ⇌ AB The equilibrium . Simultaneously, there
kykrilka [37]

Based on Le Chatelier's principle, if the equilibrium of a system is disturbed by changing the temperature, pressure or concentration, then it will shift in a direction to undo the effect of the induced change.

The given equilibrium is:

A + B ↔ AB

Removal of the reactant A implies that the concentration of A has decreased, therefore the equilibrium will shift in a direction to produce more of A. Thus, it will shift to the left and the rate of the reverse or backward reaction will increase.

7 0
3 years ago
Read 2 more answers
Which statements describes Newton's law of universal gravitation ?
IrinaK [193]

Your answer is D. You're Welcome

8 0
3 years ago
Read 2 more answers
I need help ASAP please giving brainliest!!
Mashutka [201]

Explanation:

im bumb like really bumb

4 0
2 years ago
The rust that appears on steel surfaces is iron(III) oxide. If the rust found spread over the surfaces of a steel car body conta
alexira [117]

OMG WRONG THING SOOO SOO SORRYY i mean to put this answer on something else

7 0
3 years ago
Other questions:
  • Which of the following has the smallest heat capacity?
    12·2 answers
  • Point in a titration at which the quantity of titrant is exactly sufficient for stoichiometric reaction with the analyte.
    10·1 answer
  • How many control(s) are in an experiment
    12·1 answer
  • The plastic which do not remould against on the heating are called ___..​
    13·1 answer
  • How do you view failure? Is failure the end, or is failure an important lesson and motivator?
    15·1 answer
  • Why does an aluminum horseshoe bend but not break when a blacksmith pounds it into shape with a hammer?
    5·1 answer
  • This is an underground level where the ground becomes saturated with water.
    7·2 answers
  • Calculate the Mass of 3 Gram atom of Nitrogen ​
    11·1 answer
  • 28. How many formula units are found in 0.250 moles of potassium nitrate?
    9·1 answer
  • Question 1
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!