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3 years ago

Which statement is true about the compound ammonium sulfate [(NH4)2SO4] ?

Chemistry

2 answers:

BabaBlast [244]3 years ago

4 0

Answer:

It is a salt of two polyatomic ammonium ions and one polyatomic sulfate ion

Explanation:

Ammonium Sulfate is an ionic compound formed by two polyatomic ions, Ammonium NH+4 and Sulfate SO−4 . ... Therefore, it will take two +1 ammonium ions to balance the one -2 sulfate ion. This will make the formula for Ammonium Sulfate (NH4)2SO4

timurjin [86]3 years ago

4 0

Answer:

A) It is a salt of two polyatomic ammonium ions and one polyatomic sulphate ion.

Explanation:

A polyatomic ion is an ion composed of two or more atoms. Polyatomic ions are covalently bonded groups of atoms with a positive or negative charge caused by the formation of an ionic bond with another ion. They behave as a single unit and are also known as molecular ion.

Ammonium sulphate [(NH4)2SO4] is an ionic compound formed by two polyatomic ions which are NH4^+ and SO4 ^2-

•In order for these two polyatomic ions to bond, the charges must be equal, opposite and give a net charge of zero.

•Since the sulfate ion has the greater charge, we will need two atoms of NH4^+ that will sum up to give a charge 2+ which will balance the 2- coming from the sulfate polyatomic ion.

We will be having something like this:

NH4^+ + NH4^+ ----> 2NH4^ +

Now we have equal number of charges, two positive and two negative charges coming from two ammonium polyatomic ions and one sulfate polyatomic ion.

NH4^+ NH4^+ SO4^2-

This will make the formula for ammonium sulfate to be (NH4)2SO4

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https://chem.libretexts.org/Bookshelves/Inorganic_Chemistry/Supplemental_Modules_(Inorganic_Chemistry)/Chemical_Reactions/Limiting_Reagents

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4 years ago

What is the name C2H4

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Explanation:

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Which is one way that in advance and biotechnology companies unintended consequence is that harm the environment?

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4 years ago

calculate the amount of time required to rise the temperature of 0.50 liter of water from 0.0 c to 10.0 c if the energy is suppl

Ivanshal [37]

Answer:

The amount of time required to rise the temperature of 0.50 liter of water from 0.0 c to 10.0 c is 19 seconds

Explanation:

1100 J/s is the energy supplied so, we have to set, the energy to that ΔT, which is 10°C (10°-0°)

Q = m . C. ΔT

Q = 500g . 4,186J/g°C . 10°C

Remember the water density is 1g/mL, so if we have 0,5 L, we should get the convertion to g. (1ml = 1x10*-3 L)

1x10*-3 L ____ 1 g

0,5 L _____ (0,5 L . 1 g)/ 1x10*-3 L = 500g

4,186J/g°C, this value is known as specific heat of water. It is a known value.

Q = 500g . 4,186J/g°C . 10°C = 20930 J

Now the final rule of three:

1100 J supplies at _____ 1 second

20930 J supplies at _____ (20930 J . 1 s) / 1100 J =19,02 s

8 0

3 years ago

El volumen del aire en los pulmones de una persona es de 615 ml aproximadamente, a una presión de 760 mm Hg. La inhalación ocurr

Ann [662]

The volume of air in a person's lungs is about 615 ml, at a pressure of 760 mm Hg. Inhalation occurs when the pressure in the lungs drops to 752 mm Hg. To what volume do the lungs expand?

Answer:

621.5mL

Explanation:

Given parameters:

Initial volume = 615mL

Initial pressure = 760mmHg

Final pressure = 752mmHg

Unknown;

Final volume = ?

Solution:

To solve this problem, we simply apply Boyle's law.

"the volume of a fixed mass of a gas varies inversely as the pressure changes if the temperature is constant".

Mathematically;

P₁V₁ = P₂V₂

P and V are the pressure

1 and 2 are the initial and final states

Now insert the parameters and start;

760 x 615 = 752 x V₂

V₂ = 621.5mL

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3 years ago