No the sun is the biggest star in the universe.
Answer: This can be quickly solved with "traintracks"
Explanation:
You start w/ grams of water and want to find moles of oxygen gas produced.
So you want to Convert:
Grams of water -> moles of water -> moles of oxygen gas.
The two things you need to know to set up the tracks are:
1)Molar mass of water- H2O
Hydrogen - 1.008(x2)
Oxygen - 16.00
Water - 18.016
Transition metals seem to have fairly even levels of reactivity though it seems they to react more with bases than acids. If I didn’t know from the lessons, I would say alkali and alkaline earth metals weren’t very reactive.
(That's my answer when I did a lab about the reaction of metals for chemistry at least.)
New volume of balloon is 32.9 mL.
The balloon can hold 0.134 moles of gas.
<u>Explanation:</u>
It is given by Boyle's law that, in gases pressure and volume are in inverse relationship, when the temperature remains constant.
P₁V₁= P₂V₂
Now we have to find the volume, V₂ as,
V₂ = P₁V₁ / P2
P₁ = 126.625 kPa = 1.25 atm
Plugin the given values as,
V₂= 1.25 atm × 2500 ml / 95 atm = 32.9 ml
Now we have to find the number of moles for the new volume and pressure and temperatue is 285 K.
PV = nRT
n = PV/RT
= 95 atm × 0.0329 L / 0.08206 L atm mol⁻¹ K⁻¹×285 K
= 0.134 moles.
