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
likoan [24]
1 year ago
5

5 g of gold and 25 g of silver are mixed to form a single-phase ideal solid solution. (a) how many moles of solution are there?

(b) what are the mole fractions of gold and silver?
Chemistry
1 answer:
worty [1.4K]1 year ago
3 0

Mole fraction for silver= 0.2317643/0.3079193

                                     = 0.7526787

Mole fraction for gold=0.076155/0.3079193

                                    =0.2473212

What is Molar Fraction?

The mole fraction is the product of the number of molecules of a specific component in a mixture and its total molecular weight. It serves as a means of indicating how concentrated a solution is.

It is a unit of concentration, defined as the product of the moles of a component and the moles of the entire solution. When all the parts of a solution are summed up, their mole fraction equals 1.

molar mass of silver = 107.8682g/mol

Molar mass of gold= 196.96657g/mol

Therefore mole = mass/molar mass

For silver: 25g/107.8682g/mol = 0.2317643mol

For gold: 15g/196.96657g/mol= 0.076155mol

Total number of mole= 0.2317643+0.076155

                                    = 0.30791193mol

Mole fraction for silver= 0.2317643/0.3079193

                                      = 0.7526787

Mole fraction for gold=0.076155/0.3079193

                                     =0.2473212

Learn more about Mole Fraction from given link

brainly.com/question/28590918

#SPJ4

You might be interested in
Which of the following is a chemical change?
FromTheMoon [43]

<u>Answer:</u>

<em>Silver tarnishing as the silver metal reacts with sulphur is a chemical change.</em>

<u>Explanation:</u>

Tarnishing is the process of chemical change occurring on the surface of objects leading to corrosion or other defects on the surface. The remaining options like dilution, eroding is a physical change where the concentration of salt and rock particles will be decreased, respectively.

Similarly for soil drying also the concentration of water will be decreased leading to a physical change from wetty or dry soil.

But the last option which indicates tarnishing of silver metal on reaction with sulphur is a chemical process as the surface of silver metal will be reacting to sulphur and leads to lose of electrons which leads to corrosion of the surface or tarnishing of silver.

4 0
3 years ago
Read 2 more answers
Wich stament describes to organ systems working together to get rid of waste played by cells
IceJOKER [234]

Answer:

C. Kidneys filter wastes from the bloodstream and produce urine

Explanation:

5 0
3 years ago
Read 2 more answers
What’s the answer????
dezoksy [38]
Should be , b
. Not positive tho
8 0
3 years ago
In which situation are unbalanced forces acting on an object?(1 point)
Alex Ar [27]

Answer:

1. Two people stand on the same side of a large tire. Both people pull the tire with equal force.

2. an object’s ability to not change its motion

3. The car moves forward, while inertia keeps the balloon in place.

4. The unbalanced forces of air resistance and gravity slow the airplane and pull it down.

5. The force acting on the object must be unbalanced.

7 0
3 years ago
Why does potassium explode when exposed to water?
soldi70 [24.7K]

Answer:

The highly unstable pure sodium or potassium wants to lose an electron and this splits the water atom, producing a negatively charged hydroxide ion and hydrogen and forming an explosive gas that ignites.

Explanation:

4 0
3 years ago
Other questions:
  • What is unique about the orbitals around the nucleus of an atom?
    12·2 answers
  • 1) Humans have how many sets of teeth?
    6·1 answer
  • Will someone help me its important
    5·2 answers
  • The element californium (cf) sells for $1000 per µg. assuming 6.02 x 1023 atoms of cf have a mass of 251 grams, how many atoms o
    7·1 answer
  • What is the molarity of a solution that contains 25 g of HCl in 150 mL of solution? (The molar mass of HCl is 36.46 g/mol.)
    14·2 answers
  • Which of the following statements could be true regarding polar molecules? Choose one or more: A polar molecule will not contain
    7·1 answer
  • An example of an extensive property of matter is?<br>temp<br>pressure<br>mass<br>hardness
    9·1 answer
  • How are thermal energy and mass related?
    5·2 answers
  • All atoms in the main group want _____ electrons in their outset shell
    6·1 answer
  • Why would other scientist want to see observations from your three trials
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!