Answer:
A. Temperature and pressure
Explanation:
The factors included in a phase diagram are the temperature and pressure conditions.
A phase diagram is a combined plot of three curves all in equilibrium;
Solid- liquid, liquid -gas, and solid -gas plots
- On the vertical axis, we usually have the pressure
- On the horizontal axis is where the temperature is represented.
- Most phase diagrams are used in chemistry and mineralogy to show areas in which different phases can exist at equilibrium.
Pure water would be classified as non-conductor since it does not allow the flow of current into the solution. It does not contains any ions or free electrons so it cannot allow the flow of current into the system. It can allow current only when any impurities is present like salts.
Answer:
OH⁻(aq) + NH₄⁺(aq) → NH₃(g) + H₂O(l)
Explanation:
The net ionic equation is a way yo write a chemical equation that list only the species that are involved in the reaction.
For the reaction:
NaOH(aq) + NH₄Br(aq) → NaBr(aq) + NH₃(g) + H₂O(l)
Ionic equation is:
Na⁺(aq) + OH⁻(aq) + NH₄⁺(aq) + Br⁻(aq) → Na⁺(aq) + Br⁻(aq) + NH₃(g) + H₂O(l)
<em>-Ions comes from the species that are in aqueous phase-</em>
And net ionic equation is:
<em>OH⁻(aq) + NH₄⁺(aq) → NH₃(g) + H₂O(l)</em>
<em />
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0.592 grams of O₂ gas are needed.
<h3>What is Ideal Gas ? </h3>
An ideal gas is a gas that obeys gas laws at all temperature and pressure conditions. It have velocity and mass but do not have volume. Ideal gas is also called perfect gas.
Ideal gas law equation is expressed as:
PV = nRT
where,
P = Pressure
V = Volume (in Liters)
n = Number of moles of gas
R = Ideal gas constant
T = Temperature
Here,
P = 0.505 atm
V = 869 ml = 0.869 L
R = 0.0821 L atm/K mol [Ideal gas constant]
T = 287 K
Now put the values in above equation
PV = nRT
0.505 atm × 0.869 L = n × 0.0821 L atm/K mol × 287 K
0.438 atm L = n × 23.56 L atm / mol
n = 0.0185 mol
Now,
Mass of oxygen = Number of moles × Molar Mass
= 0.0185 mol × 32 g/mol
= 0.592 gram
Thus from the above conclusion we can say that 0.592 grams of O₂ gas are needed.
Learn more about the Ideal Gas here: brainly.com/question/20348074
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