density= mass/volume
we need the volume of the metal to find the density, in which case the answer would be 64.2/volume=density
Answer:
Explanation:
From the question we are told that:
Initial volume
Final Volume
Work
Temperature
Generally the equation for Ideal gas is mathematically given by
A.
Explanation:
Probably, if the sun was too close to the center of the galaxy, the solar system would experience chaos, such as a high frequency of collisions with other planets and stars, due to the enormous pull of the super black hole at the center of the MilkyWay Galaxy causing celestial objects to spin at very high speeds at its horizon – including bending light.
The position is postulated as the <u>Galactic habitable zone.</u>
There are 1.22 grams of He in the mixture. The mixture contains 0.304 moles of He, 0.250 moles of N2 and 0.250 moles of O2. Since the mixture of gases are at standard temperature and pressure, the total moles of the mixture equivalent to 18.0 L is 0.804 moles.
Further Explanation:
At standard temperature and pressure of 0°C and 1.00 atm, the molar volume of gas is 22.4 L.
From this, the total moles of the mixture can be derived using the solution below:
Therefore, the total moles of gases in an 18.0 L mixture at STP is:
By algebra, the moles of He may be solved using the given moles of the other two gases: 0.250 mol N2 and 0.250 mol O2.
0.304 moles of He is equal to 1.22 grams of He.
Learn More:
- Learn more about Boyle's Law brainly.com/question/12968820
- Learn more about Gay-Lussac's Law brainly.com/question/6534668
- Learn more about Ideal Gas Law brainly.com/question/12935899
Keywords: molar volume, STP, stoichiometry