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
ICE Princess25 [194]
3 years ago
9

26. If a saturated solution of AgNO3 at 20°C contains 216 g AgNO3 per 100.0 g of water, what mass of water could

Chemistry
1 answer:
givi [52]3 years ago
8 0

335.6g of water will hold 725 grams of silver nitrate.

<h3><u>Explanation:</u></h3>

The saturated solution of a solvent is the solution which can't hold more of the solvent at a particular temperature and pressure under normal conditions, if more solvent are added, it will precipitate out.

Silver nitrate solution at the particular temperature and pressure contains 216 grams of silver nitrate in 100g of water.

So, 1 gram of silver nitrate is held in 100/216 grams of water.

So, 725grams of silver Nitrate is held in 100*725/216 grams of water = 335.6 grams of water.

This gives the saturated solution of silver nitrate again.

You might be interested in
2-phosphoglycerate(2PG) is converted to phosphoenolpyruvate (PEP) by the enzyme enolase. The standard free energy change(deltaGo
pogonyaev

Answer:

The correct option is: (D) -2.4 kJ/mol

Explanation:

<u>Chemical reaction involved</u>: 2PG ↔ PEP

Given: The standard Gibb's free energy change: ΔG° = +1.7 kJ/mol

Temperature: T = 37° C = 37 + 273.15 = 310.15 K    (∵ 0°C = 273.15K)

Gas constant: R = 8.314 J/(K·mol) = 8.314 × 10⁻³ kJ/(K·mol)     (∵ 1 kJ = 1000 J)

Reactant concentration: 2PG = 0.5 mM

Product concentration: PEP = 0.1 mM

Reaction quotient: Q_{r} =\frac{\left [ PEP \right ]}{\left [ 2PG \right ]} = \frac{0.1 mM}{0.5 mM} = 0.2

<u>To find out the Gibb's free energy change at 37° C (310.15 K), we use the equation:</u>

\Delta G = \Delta G^{\circ } + 2.303 R T log Q_{r}

\Delta G = 1.7 kJ/mol + [2.303 \times (8.314 \times 10^{-3} kJ/(K.mol))\times (310.15 K)] log (0.2)

\Delta G = 1.7 + [5.938] \times (-0.699) = 1.7 - 4.15 = (-2.45 kJ/mol)

<u>Therefore, the Gibb's free energy change at 37° C (310.15 K): </u><u>ΔG = (-2.45 kJ/mol)</u>

4 0
3 years ago
In a physical change of matter,​
mel-nik [20]

Answer: C. no new substances are formed<span>
</span><span>
<span>In the physical change of matter, there is no new substance that is formed. It is only the appearance of the matter that is being changed and not its chemical composition. Cutting, tearing and grinding are only some of the examples that exhibit physical change. </span></span>

5 0
3 years ago
Read 2 more answers
Geologists use radioactive dating to...
zzz [600]

Answer:

determine the absolute age of rocks.

5 0
3 years ago
Read 2 more answers
Cations are formed by _____. gaining protons losing protons gaining electrons losing electrons
Ede4ka [16]
Cations are formed by losing electrons in the valence shell of atoms. There are more protons than electron ions making the atom more positive.
7 0
3 years ago
Read 2 more answers
Which components of an endothermic reaction have a higher heat content?
trasher [3.6K]
The answer is B. products
5 0
3 years ago
Read 2 more answers
Other questions:
  • Give the product of the reaction of excess benzene (2 equivalents) with dichloromethane and alcl3.
    6·1 answer
  • How many grams of naoh are present in 350.0 ml of a 5.69 m naoh(aq) solution?
    5·1 answer
  • Explain why the replacement of the glutamic acid by valine changes the way that molecules of b-globin interact with each other.
    12·1 answer
  • How do solve for density?
    5·1 answer
  • Reflecting and refracting telescopes are used to gather radiation from space. Which of these statements best explains why a refr
    10·1 answer
  • A machine called a centrifuge is used in _____.
    12·2 answers
  • Which is a nonliving factor that defines a spruce-fir forest ecosystem
    7·1 answer
  • A) How many grams of water are produced when 2.50 g of aluminum
    14·1 answer
  • Translation: Explain the importance of energy levels,
    9·1 answer
  • Which extraction procedure will completely separate an amide from the by-product of the reaction between an amine and excess car
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!