Answer:
No
Explanation:
the dissolution of potassium nitrate in water is an endothermic process because hydration energy does overcome the lattice energy and hence it is not spontaneous at all temperature.
Hydration energy: it is a energy released when gaseous ion is dissolve in the water during dissolution it releases.
lattice energy: the energy which is released when one of ionic compound is formed from their gaseous ion is called lattice energy.
thats why to break it we should give minimum this much energy
Answer:
It cannot conduct electricity, however adding salt or sugar will make the water have impurities/other substance making it easier to conduct electricity
Explanation:
Distilled water by itself does not contain impurities, thus, it cannot <em>conduct </em>electricity.
When you put salt in water, the water molecules pull the sodium and chlorine ions apart so they are floating freely, increasing the conductivity.
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Answer:
- NH₃ is the limiting reactant.
- Theoretical yield = 120 kg
Explanation:
- 2NH₃ (aq) + CO₂ (aq) → CH₄N₂O (aq) + H₂O (l)
First we <u>convert the given masses of reactants to moles</u>, using their <em>respective molar masses</em>:
- 68.2 kg NH₃ ÷ 17 kg/kmol = 4.01 kmol NH₃
- 105 kg CO₂ ÷ 44 kg/kmol = 2.39 kmol CO₂
2.39 kmol of CO₂ would react completely with (2.39 * 2) 4.78 kmol of NH₃. There are not as many NH₃ kmoles so <u>NH₃ is the limiting reactant.</u>
We <u>calculate how much urea would form with a 100% yield</u>, using the <em>moles of limiting reactant</em>:
- 4.01 kmol NH₃ * = 2.00 kmol CH₄N₂O
We <u>convert that amount to kg</u>:
- 2.00 kmol CH₄N₂O * 60 kg/kmol = 120 kg CH₄N₂O
Finally we <u>calculate the percent yield</u>:
- 87.5 kg / 120 kg * 100% = 72.9 %
Osmosis is the diffusion of water from a high concentration to a lower concentration
Answer:
An amide may be produced by reacting an acid chloride with ammonia.