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zaharov [31]
3 years ago
9

What is the Net Ionic Equation of the chemical equation (NH4)2S(aq) + 2KOH(aq) -> K2S(aq) + 2NH4OH(s)?

Chemistry
1 answer:
tangare [24]3 years ago
8 0

Answer:

Chemical Equation: (NH4)2S(aq) + 2KOH(aq) -> K2S(aq) + 2NH4OH(s)

Explanation:

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As a chemical reaction proceeds toward equilibrium, the free energy of the system decreases at constant temperature and constant
olganol [36]

Answer:

True

Explanation:

GIBBS FREE ENERGY (G) Gibbs free energy is a thermodynamic function It is a state function. G = H - TS At constant temperature At constant pressure and temperature An increase in S corresponds to a decrease in free energy

Constant free energy (G) P, T The important thing about free energy is that whenever the pressure and temperature are constant, we can determine the spontaneity of a process only in terms of the thermodynamic properties of the system G = H - TS The Free energy change is a measure of the change in the total entropy of a system and its environment at constant temperature and pressure. <u>Spontaneous processes at constant temperature and pressure are accompanied by a decrease in free energy</u>.

At constant temperature and pressure, the direction of spontaneous change is towards the lowest free energy. <u>The equilibrium state of a system corresponds to the lowest point of the free energy curve </u>.

8 0
3 years ago
Volume of a gas at STP, if its volume is 80.0 mL at 1.08 atm and –12.5oC.
vodomira [7]

Answer:

90.5mL is the volume of the gas at STP

Explanation:

It is possible to find volume of a gas when conditions of temperature and pressure change using combined gas law:

\frac{P_1V_1}{T_1} =\frac{P_2V_2}{T_2}

Where P is pressure, V is volume and T is absolute temperature. 1 is initial conditions and 2 final conditions.

If initial conditions are 1.08atm, 80.0mL and absolute temperature is (-12.5°C + 273.15) = 260.65K.

And STP are 1atm of pressure and 273.15K of absolute temperature. Replacing:

\frac{1.08atm80.0mL}{260.65K} =\frac{1atmV_2}{273.15K}

V₂ = <em>90.5mL is the volume of the gas at STP</em>

7 0
3 years ago
Read 2 more answers
What is the pH of a 7.5 x 10-3 M<br> OH solution?
Vikki [24]

14 + log(7.5 × 10⁻³) ≈

11.875

6 0
3 years ago
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Why Iodine doesn’t dissolve in water?
nirvana33 [79]

Answer:

Iodine has a very low solubility in water because it is non-polar.Its an element from grp 7 in periodic table and grp7 elements mostly react with grp1 elements to form salt i guess... well non polar means

When atoms bond together to form molecules, they share or give electrons. If the electrons are shared equally by the atoms, then there is no resulting charge, and the molecule is nonpolar. that s all ik

3 0
3 years ago
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How would a solution that is labeled “5.0 molar” be similar to one labeled “5.0 molal”?
Talja [164]

Answer:

A

Explanation:

5.0 M would be measured "moles per liter" and A is the only question which includes the fundamental measurement

8 0
3 years ago
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