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
notka56 [123]
3 years ago
11

A 130.0−mL sample of a solution that is 3.0×10−3M in AgNO3 is mixed with a 225.0−mL sample of a solution that is 0.14M in NaCN.

Chemistry
1 answer:
Gekata [30.6K]3 years ago
8 0
130.0ml sample solution that is 3.0 * 10-3M in AgNo3 is (0.130L)(3.0*10-3mol/L) = 0.00039mols of Ag+

225.0ml sample in 0.14m Nacl
(0.225)(0.14M of NaCN) = 0.0315

0.0039 moles of [Ag(CN)2]^-] is diluted in a total volume of 335.0ml:
(0.00039m)/(0.3550L)=0.001099 molar[Ag(CN)2]-

Ag+ & 2 CN - 1 > [Ag +(CN-) 2] ^-1
twice as much CN- is consumed, when it reacts with 0.00039 moles of Ag+
(0.0315 moles of CN-)-(2)(0.0039 moles lost)=0.03702

amount which has been diluted in 335.0ml
(0.03702 of CN-)/(0.355L)=0.104 molar CN-
Kf = [Ag + (CN-)2]/[Ag+][CN-]^2
1*10^21=[0.001099]/[Ag+][0.104^2]
Ag+=[0.001099]/(1*10^21)(0.0108)
Ag+=1.18692E^26 molar
You might be interested in
Which is the correct terrm that indicated that an oceanic crust is pushed downward by a colliding contintental crust?
NARA [144]
The process by which the oceanic crust is pulled under the continental crust is called subduction.
3 0
3 years ago
SCIENCE - Can someone tell me the ph level of rain water?
amid [387]
Normal rainwater has a pH of 5.6<span> (slightly acidic)</span>
8 0
3 years ago
40.00 grams of NaOH is added into distilled water and diluted with water to 1000mL of final volume. What is the final concentrat
tatyana61 [14]

Answer:

The molar mass of NaOH is 40.00 g/mol.

The number of moles of NaOH is equal to the ratio of its mass to molar mass.

The number of moles of NaOH =

40 g/mol

40 g

​

=1,000 mol

The molarity of NaOH solution is the ratio of number of moles of NaOH to total volume of solution in L.

M=

1 L

1 mol

​

=1 M

Explanation ;)

7 0
2 years ago
How is atom important to all living and non-living things
svp [43]

Answer:

Atoms are extremely important structures that make up all of the materials on earth.

Explanation:

Atoms are in our bodies and they bond together to form molecules, which make up matter.

8 0
2 years ago
Read 2 more answers
Fusion reactions constitute the fundamental energy source of stars, including the Sun. Hydrogen “burning” initiates the fusion e
AfilCa [17]

Answer:

C)  The most efficient fusion reactors would use heavier forms of hydrogen.

Explanation:

From the information presented to us in the question, the third sentence reveals that heavier forms of hydrogen produces larger amount of energy and most importantly reacts more efficiently when fusion occurs.

<em>In fact, the </em><u><em>heavy isotopes of hydrogen—deuterium and tritium—react more efficiently</em></u><em> with each other, and, when they do undergo fusion, they yield more energy per reaction than do two hydrogen nuclei. </em>

3 0
3 years ago
Other questions:
  • A student wants to reclaim the iron from an 18.0-gram sample of iron(III) oxide, which
    10·2 answers
  • An animal cell contains a nucleus and other organelles suspended in a watery solution that is encased in a flexible cell membran
    13·2 answers
  • If the electronegativity difference between the elements in the ionic compound nax has the ratio of 2 to 1 what element is x
    13·1 answer
  • a gas that exerts a pressure of 215 torr in a container with a volume of 51.0 mL will exert a pressure of ? torr when transferre
    5·1 answer
  • How much heat is needed to boil 45 grams of water at 100°C?​
    8·1 answer
  • Describe your understanding of atoms and their subatomatic particles
    14·1 answer
  • Which two elements are combined in sodium chloride
    9·2 answers
  • What is the percent composition by mass for hydrogen in water (H2O)?
    8·1 answer
  • Use the table to answer the question.
    7·2 answers
  • How would I put this into words C2H7OH + O2 ---&gt; CO2 + H2O​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!