Hey there!
The correct answer to your question is: Spectrum
A spectrum, by definition, is a range of colors which are produced by separating certain colors of light.
Thank you!
Answer: There are 7.4 moles of helium gas present in a 1.85 liter container at the same temperature and pressure.
Explanation:
Given:
= 2.25 L,
= 9.0 mol
= 1.85 L,
= ?
Formula used to calculate the moles of helium are as follows.
![\frac{V_{1}}{n_{1}} = \frac{V_{2}}{n_{2}}\\](https://tex.z-dn.net/?f=%5Cfrac%7BV_%7B1%7D%7D%7Bn_%7B1%7D%7D%20%3D%20%5Cfrac%7BV_%7B2%7D%7D%7Bn_%7B2%7D%7D%5C%5C)
Substitute the values into above formula as follows.
![\frac{V_{1}}{n_{1}} = \frac{V_{2}}{n_{2}}\\\frac{2.25 L}{9.0 mol} = \frac{1.85 L}{n_{2}}\\n_{2} = \frac{1.85 L \times 9.0 mol}{2.25 L}\\= 7.4 mol](https://tex.z-dn.net/?f=%5Cfrac%7BV_%7B1%7D%7D%7Bn_%7B1%7D%7D%20%3D%20%5Cfrac%7BV_%7B2%7D%7D%7Bn_%7B2%7D%7D%5C%5C%5Cfrac%7B2.25%20L%7D%7B9.0%20mol%7D%20%3D%20%5Cfrac%7B1.85%20L%7D%7Bn_%7B2%7D%7D%5C%5Cn_%7B2%7D%20%3D%20%5Cfrac%7B1.85%20L%20%5Ctimes%209.0%20mol%7D%7B2.25%20L%7D%5C%5C%3D%207.4%20mol)
Thus, we can conclude that there are 7.4 moles of helium gas present in a 1.85 liter container at the same temperature and pressure.
Answer:
The equation for molarity is moles/liter for the first question you would do 0.256/0.143 liters to get 1.790 mol/L
Explanation:
The second problem you would do need to find the moles of NaCl which you would do by doing 4.89 g/58.44g/mol= 0.08367 then do 0.08367/0.600= 0.139 mol/L
The third problem would be the same steps as the second one.
The fourth problem would be (0.460M)(5.50L)= 2.53 moles
Answer:
where is the option I can't see plz give the option first the I try to give answer