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
OverLord2011 [107]
3 years ago
6

Gold(ill) hydroxide is used in medicine, porcelain making, and gold plating. It is quite insoluble in aqueous solution. Which of

the following substances, if any, can increase the solubility of this compound in water?a) Ca(OH)2(aq) b) NH3(aq) c) NaCl(aq) d) HBr(aq) e) Gold(III) hydroxide is an ionic solid compound; its solubility is not affected by any of the above reagents.
Chemistry
1 answer:
erik [133]3 years ago
6 0

Answer:

NH3(aq)

Explanation:

Gold III hydroxide is an inorganic compound also known as auric acid. It can be dehydrated at about 140°C to yield gold III oxide. Gold III hydroxide is found to form precipitates in alkaline solutions hence it is not soluble in calcium hydroxide.

However, gold III hydroxide forms an inorganic complex with ammonia which makes the insoluble gold III hydroxide to dissolve in ammonia solution. The equation of this complex formation is shown below;

Au(OH)3(s) + 4 NH3(aq) -------> [Au(NH3)4]^3+(aq) + 3OH^-(aq)

Hence the formation of a tetra amine complex of gold III will lead to the dissolution of gold III hydroxide solid in aqueous ammonia.

You might be interested in
Give three properties of a Solid
NARA [144]
In a solid, molecules are packed together, and it keeps its shape. Liquids take the shape of the container. Gases spread out to fill the container. Solid is one of the three main states of matter, along with liquid and gas.

Hope that helps!
8 0
3 years ago
4. How many joules of heat are absorbed to raise
hodyreva [135]

. How many joules of heat are absorbed to raise

the temperature of 37 grams of water from 25°C

to 75°C?

7 0
2 years ago
What is the total number of oxygen atoms represented in the formula na2c03.10h2o?
Wewaii [24]

As per the given chemical formula- Na2CO3.10H2O, one mole of the chemical compound contains 13 moles of oxygen atoms. Hence

Number of moles of oxygen atoms in one mole of Na2CO3.10H2O = 13

number of moles of oxygen atoms in 0.2 moles of Na2CO3.10H2O = 13 X 0.2 = 2.6

Now, one mole of a substance contains 6.022 X 10^23 particles of the substance. Thus

number of atoms of oxygen in one mole of oxygen atom = 6.022 X 10^23

number of moles of oxygen atoms in 2.6 moles of oxygen atoms = 2.6 X 6.022 X 10^23 = 15.657 X 10^23

= 1.566 X 10^24

Thus, there are 1.566 X 10^24 atoms of oxygen in 0.2 moles of Na2CO3.10H2O.
4.7
7 0
3 years ago
What increases OH ions​
hram777 [196]

Answer:

A base.

Explanation:

Basic solutions give OH- ions.

7 0
3 years ago
Q+ is an ion of element Q. What has the highest value in the ion?
Firdavs [7]

The highest value of the ion is the nucleon number. The correct option is a.

<h3>What is nucleon number?</h3>

The mass number of an element is so named because it represents the total number of protons and neutrons in the element.

The total number of protons and neutrons in an atomic nucleus is known as the mass number, also known as the atomic mass number or nucleon number. It is roughly equivalent to the atomic mass expressed in atomic mass units.

In the given ion Q+, the nucleon number has the highest value in the ion

Thus, the correct option is a.

For more details regarding nucleon number, visit:

brainly.com/question/14622763

#SPJ1

7 0
1 year ago
Other questions:
  • A compound consists of 72.2% magnesium and 27.8% nitrogen by mass. what is the empirical formula
    6·1 answer
  • In the Alkali metals what element is the same "Period" as the element Neon
    10·1 answer
  • Explain how paper chromatography could be used to separate a mixture of different coloured inks
    9·1 answer
  • The carbon atoms of acetic acid (CH3COOH) exhibit what type of hybridization?A.) spB.) sp^2C.) sp^3D.) sp^2 and sp^3
    9·1 answer
  • What is the correct systematic name for ICl5?
    9·1 answer
  • The chemical formula for propane is: CH3CH2CH3 Calculate the molar mass of propane. Round your answer to 2 decimal places.
    14·1 answer
  • When two atoms of element Y combine, Y2 molecule is formed.
    15·1 answer
  • Please help!!!!!!!!!!
    5·1 answer
  • Burning wood in a fireplace is an example of what kind of energy conversion
    5·2 answers
  • Convert 100.6 Kelvin to degrees C. <br><br>°C = K - 273 <br>[?] °C ​
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!