Answer:
What measure is it , there is no picture ?
Molarity = number of moles/Volume (L). Solve for the number of moles in the initial solution (3.78M = n/0.3 L) and then use that amount of moles and the new volume (0.5 L) to solve for the new Molarity.
Answer:
Human land use impacts the environment by causing certain events which can lead to more serious events such as climate change, poor air and water quality, and environmental degradation.
One example is when humans clear out space such as forests (deforestation). This leads to habitat loss which lowers the population of certain species affecting biodiversity thus impacting the environment.
Explanation:
Answer: The new temperature is 10643 K
Explanation:
Combined gas law is the combination of Boyle's law, Charles's law and Gay-Lussac's law.
The combined gas equation is,
![\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}](https://tex.z-dn.net/?f=%5Cfrac%7BP_1V_1%7D%7BT_1%7D%3D%5Cfrac%7BP_2V_2%7D%7BT_2%7D)
where,
= initial pressure of gas = 750.0 mm Hg = 0.98 atm (760mmHg=1atm)
= final pressure of gas = 3.50 atm
= initial volume of gas = 2.00 L
= final volume of gas = 20.0 L
= initial temperature of gas = ![25.0^oC=273+25.0=298.0K](https://tex.z-dn.net/?f=25.0%5EoC%3D273%2B25.0%3D298.0K)
= final temperature of gas = ?
Now put all the given values in the above equation, we get:
![\frac{0.98\times 2.00}{298.0K}=\frac{3.50\times 20.0}{T_2}](https://tex.z-dn.net/?f=%5Cfrac%7B0.98%5Ctimes%202.00%7D%7B298.0K%7D%3D%5Cfrac%7B3.50%5Ctimes%2020.0%7D%7BT_2%7D)
![T_2=10643K](https://tex.z-dn.net/?f=T_2%3D10643K)
Thus the new temperature is 10643 K
<span>In a sample of solid Ba(NO3)2 the ratio of barium ions to nitrate ions is would be one is to 2 or 1:2. Barium ion has a formal charge of positive two which means that it needs two ions which has a formal charge of negative one or 1 ion with the formal charge of negative two. However, for this case, it is bonded to a nitrate ion which has a formal charge of negative one. Therefore, it needs two nitrate ions so that for every 1 atom of barium ion, we need two ions of nitrate ions.</span>