Answer:
25°C
Explanation:
Combined Gas Law (P₁V₁)/T₁ = (P₂V₂)/T₂
(0.947 atm)(150 mL)/25°C = (0.987 atm)(144mL)/T₂
5.682 = 142.128/T₂
T₂ = 142.128/5.682
T₂ = 25.0137272756°C = 25°C
Answer:
the total distance moved by the wave from it's equilibrium point.
Explanation:
I picture the equivalent as standing on the floor is equilibrium point or starting. how high you jump is your amplitude.
Answer:
NiCl₂·4H₂O, its name being nickel (II) chloride tetrahydrate.
Explanation:
The constant mass achieved after heating is the mass of anhydrous nickel (II) chloride, NiCl₂. While the mass lost was water.
- Mass lost = 1.167 g - 0.750 g = 0.417 g
Now we <u>convert 0.750 g of NiCl₂ into moles</u>, using <em>its molar mass</em>:
- 0.750 g NiCl₂ ÷ 129.6 g/mol = 0.0058 mol NiCl₂
Then we <u>convert 0.417 g of H₂O into moles</u>:
- 0.417 g H₂O ÷ 18 g/mol = 0.0231 mol H₂O
With the above information we can calculate that the number of H₂O moles is 4 times higher than the number of NiCl₂ moles.
Meaning that <em>the formula of the hydrate is NiCl₂·4H₂O</em>, its name being nickel (II) chloride tetrahydrate.
Answer:
Um, where is the article?
