Answer:
Final volume is 3.50L
Explanation:
It is possible to find volume of a gas using combined gas law:
<em>Where P is pressure, V is volume and T is temperature of 1: initial state and 2: final state</em>
If initial state of the gas is:
1.75L of a gas is at 700K and is under 250kPa of pressure
And final state is:
298K and 53.2kPa.
Replacing:
0.625L = 0.1785*V₂
<em>3.50L = V₂</em>
Thus, <em>final volume is 3.50L</em>
Answer:
Explanation:
Molecules contain two or more atoms and are held together by covalent bonds, whereas compounds are held together by ionic bonds. Two or more elements bonded together through ionic attraction. ... The atoms within a compound also must be different from each other, whereas a molecule can consist of only one element
48.2g SrF2
(hope this helps and correct me if I’m wrong)
Answer:
<em>The solution with the lowest pH is 0.1 M HCl.</em>
Explanation:
Since the three solutions have the same concentration (0,1M) it is only necessary to look at the pKa of each solution.
Also, knowing that a higher pKa means a lower Ka, because pKa = -Log (Ka). Thus, a lower Ka means a lower concentration of protons with a higher pH ( pH = -Log [H+].
The HCl doesn't have a pKa because is a strong acid that dissociates completely. Therefore, this solution produces a lower pH. Looking at the pKa of acetic acid and formic acid solutions, the second with the lowest pH is the formic acid solutions and the higher pH is for the acetic acid solution.
Glass 1 Freshwater
The egg went directly to the base of the glass. Consequently it has sunk and did not drift
237.0
237 (1 glass)
1.000
Glass 2
Water with 2 teaspoons of salt
A similar outcome for glass 2 as container 1 when egg was set into the container it sank to the base.
248.4
237
1.048
Glass 3
Water with 3 teaspoons of salt
In reference to glass 1 and 2 the egg sank to the base for a third time.
254.1
237
1.072
Glass 4
Water with 4 teaspoons of salt
The egg remained gliding to where a little bit of the egg was standing out on the top, and when pushed down the egg returned up.
259.8
237
1.096
Hope this helps!
