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2 years ago

What do acids and bases have in common apex?

2 answers:

8 0

Both acids and bases produce a part of a water molecule. Bases dissociate hydroxide (–OH) ions and acids, hydrogen (H+) ions that when combined form water. Both are also very corrosive when they are strong enough that they fully dissociate in water.

tiny-mole [99]2 years ago

7 0

Explanation:

Acids are the substances that have pH less than 7. They are acidic in nature and have a sour taste.

Acids give hydrogen ions ( $H^{+}$ ) upon dissociation in water.

On the other hand, bases are the substances that have pH more than 7. They are basic in nature and have bitter taste.

Bases dissociate in water to give hydroxide ions ( $OH^{-}$ ).

Since, both acids and bases dissociate to give ions. Hence, we can conclude that both acids and bases are able to conduct electricity.

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A concentrated binary solution containing mostly species 2 (but x2 ≠ 1) is in equilib- rium with a vapor phase containing both s

marusya05 [52]

Answer:

x1= 4.5 × 10^-3, y1= 0.9

Explanation:

A binary solution having two species is in equilibrium in a vapor phase comprising of species 1 and 2

Take the basis as the pressure of the 2 phase system is 1 bar. The assumption are as follows:

1. The vapor phase is ideal at pressure of 1 bar

2. Henry's law apply to dilute solution only.

3. Raoult's law apply to concentrated solution only.

Where,

Henry's constant for species 1 H= 200bar

Saturation vapor pressure of species 2, P2sat= 0.10bar

Temperature = 25°C= 298.15k

Apply Henry's law for species 1

y1P= H1x1...... equation 1

y1= mole fraction of species 1 in vapor phase.

P= Total pressure of the system

x1= mole fraction of species 1 in liquid phase.

Apply Raoult's law for species 2

y2P= P2satx2...... equation 2

From the 2 equations above

P=H1x1 + P2satx2

200bar= H1

0.10= P2sat

1 bar= P

Hence,

P=H1x1 + (1 - x1) P2sat

1bar= 200bar × x1 + (1 - x1) 0.10bar

x1= 4.5 × 10^-3

The mole fraction of species 1 in liquid phase is 4.5 × 10^-3

To get y, substitute x1=4.5 × 10^-3 in equation 1

y × 1 bar = 200bar × 4.5 × 10^-3

y1= 0.9

The mole fraction of species 1 in vapor phase is 0.9

4 0

2 years ago

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What is the mass number of a carbon isotope with 10 neutrons

Korvikt [17]

Answer:

16 because carbon atom having usual 6 neutron have a mass number of 12 and that with 7 neutron has mass number of 13

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2 years ago

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BARSIC [14]

A. Fission creates new elements from which electricity can be generated.

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2 years ago

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Two types of heterogeneous mixtures are suspensions and colloids.<br>true or false<br><br>

scoray [572]

<h2>Answer:True</h2>

Explanation:

Heterogeneous mixture is a mixture with non-uniform composition.

The properties of the mixture like concentration may change for different parts of the mixture.

Colloids contain solute particles of size $2nm-500nm$ .The presence of these particles makes the mixture heterogeneous.

Suspensions contain solute particles of size $500nm-1000nm$ .These particles settle to the bottom of the mixture which makes the composition of the bottom different from the top.

So,colloids and suspensions are two types of heterogeneous mixtures.

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3 years ago

Which of the following elements would form the smallest ionic radius and why?

AnnyKZ [126]

Answer:

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Explanation:

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