We are given with the mass percentage of the elements. Taking a 100-gram basis, we<span> convert the mass of the reactants to moles. Hydrogen is equal to 1.6 moles , nitrogen is equal to 1.3058 and oxygen is equal to 4.7625 moles. We divide each number </span>to <span>the least amount. Hence H is 1.22, N is 1.00 and O is 3.65. Answer is HNO3, nitric acid.</span>
A dependible common measurement
Places where a standing wave remains fixed in place.
Answer:
3.8 is the van't Hoff factor for iron(III) chloride in X.
Explanation:
![\Delta T_f=i\times K_f\times m](https://tex.z-dn.net/?f=%5CDelta%20T_f%3Di%5Ctimes%20K_f%5Ctimes%20m)
where,
=depression in freezing point =
= freezing point constant
m = molality =![\frac{\text{Mass of solute}}{\text{Molar mass of solute}\times \text{Mass of solvent in kg}}](https://tex.z-dn.net/?f=%5Cfrac%7B%5Ctext%7BMass%20of%20solute%7D%7D%7B%5Ctext%7BMolar%20mass%20of%20solute%7D%5Ctimes%20%5Ctext%7BMass%20of%20solvent%20in%20kg%7D%7D)
i = van't Hoff factor
we have :
Mass of glycine = 63.4 g
Molar mass of glycine = 71 g/mol
Mass of solvent X = 700. g = 0.7 kg
1 g = 0.001 kg
of solvent X= ?
i = 1 (non electrolyte)
Depression in freezing point= ![7.9^oC](https://tex.z-dn.net/?f=7.9%5EoC)
![7.9^oC=1\times K_f \times \frac{63.4 g}{71 g/mol\times 0.7 kg}](https://tex.z-dn.net/?f=7.9%5EoC%3D1%5Ctimes%20K_f%20%5Ctimes%20%5Cfrac%7B63.4%20g%7D%7B71%20g%2Fmol%5Ctimes%200.7%20kg%7D)
![K_f=6.19 ^oC/m](https://tex.z-dn.net/?f=K_f%3D6.19%20%5EoC%2Fm)
When iron(III) chloride is dissolved in 0.7 kg of solvent X
Mass of iron(III) chloride = 63.4 g
Molar mass of iron(III) chloride= 162.5 g/mol
Mass of solvent X = 700. g = 0.7 kg
1 g = 0.001 kg
of solvent X= ![6.19 ^oC/m](https://tex.z-dn.net/?f=6.19%20%5EoC%2Fm)
i = ?
Depression in freezing point:![13.3^oC](https://tex.z-dn.net/?f=13.3%5EoC)
![13.3^oC=i\times 6.19^oC\times \frac{63.4 g}{162.5 g/mol\times 0.7 kg}](https://tex.z-dn.net/?f=13.3%5EoC%3Di%5Ctimes%206.19%5EoC%5Ctimes%20%5Cfrac%7B63.4%20g%7D%7B162.5%20g%2Fmol%5Ctimes%200.7%20kg%7D)
Solving for i:
i = 3.85 ≈ 3.8
3.8 is the van't Hoff factor for iron(III) chloride in X.
Answer:
Yeah, uh huh, you know what it is Crust moving cause of plate tectonics Yeah, mantle’s like plastic And the core is really dense and metallic Memorize this song and you’ll know everything about the Crust and mantle, crust and mantle, crust and mantle, crust and mantle Moving on down there are two more layers called the Outer core, inner core, outer core, inner core Mr. Lee, science teacher, at it again Sick flow spittin’ that regurgitation Ready to begin so without further adoI’mma hop up on this fresh beat so I can teach you About the layers of the Earth, first things first The outermost layer is the crust filled with dirt And rocks and sand, I hope you understand The crust is the layer on top of which we stand Its made out of rocks, mostly igneous Oceanic crust the densest and the skinniest Sinks below some other crust during subduction Which might result in a volcano and eruption
Explanation: