Knowing the two variables in this problem are volume (liter) and pressure (atm), we can determine that the law ought to be used would be Boyle's Law.
Boyle's Law: P₁v₁=P₂V₂
Using the question, we can find:
P₁ (initial pressure)=0.24 atm
V₁ (initial volume)=77.0L
P₂ (standard pressure)= 1.00atm
V₂=?
We can rearrange the equation to solve for V₂: V₂=P₁V₁/P₂
Next, we can plug in the values: V₂=
We would receive an answer of 18.48 L. However, it appears that the significant digits would be 3 as both 77.0 and 0.24 have 3 digits. As such, the answer would be 18.5L of gas at 1.00atm.
Answer:
15 because it is the closest
Explanation:
Solution:
Atomic mass = ΣzₓAₓ zₓ = relative abundance of the isotope
and Aₓ = the atomic mass of the isotope.
Atomic mass = (0.0946x85.91) + (0.07x86.91) + (0.8354x87.91)
= 87.65 amu
1. alizarin yellow R, color change at pH 10-12
2. thymol blue, color change at pH 2-4
3. methyl red, color change at pH 3-5
4. phenolphthalein, color change at pH 8-10
<span>5. bromothymol blue, color change at pH 6-8
These are the list of indicators that we have to choose from them and the correct answer will be 5) Bromothymol blue, due to color change at pH 6-8
Due to both HI is strong acid and Ba(OH)</span>₂ is strong base so the formed salt BaI₂ will has pH = 7 and the equivalence point will be 7 so it will be in the effective range of Bromothymol blue
Answer:
Explanation:
Calcium is all around us. The average human contains approximately 1kg of calcium, of which 99% is stored in our bones. It is the 5th most abundant element in the earth's crust, occurring widely as calcium carbonate which is more commonly known as limestone. It is also the fifth most abundant dissolved ion in seawater.