Answer:
nuetrons
Explanation:
some helium atoms just a little thick and packing extra neutrons
Answer:
The correct answer to the following question will be "Arrhenius base".
Explanation:
- An Arrhenius base seems to be a material that raises the ion concentration (hydroxide) when exposed to water and thereby reduces the concentration of ions (hydronium).
- This acid, as well as base model, claims an acid is indeed a material that incorporates hydrogen or ionizes protons throughout aqueous, while a base would be a material that comprises hydroxide while releases everything in a that solution
So that the above is the right answer.
The energy to vaporize the water at its normal boilng point (100°C) is the vaporization latent heat.
The vaporization latent heat of water is 2257 J/ g (you can find it in a textbook, tables or internet).
So, with 955 kJ you can vaporize this amount of water:
[995 kJ * 1000J/kJ ] / 2557 J /g = 389.13 g
Use the density to convert to volume: D = M / V => V = M / D
V = 389.13 g / 1.00 g / ml = 389.13 ml, which rounded to 3 significant figures is 389 ml
Answer: 389 ml
1. 0.33 M
2. 0.278 M
<h3>Further explanation</h3>
Molarity is a way to express the concentration of the solution
Molarity shows the number of moles of solute in every 1 liter of solute or mmol in each ml of solution
![\large{\boxed {\bold {M ~ = ~ \frac {n} {V}}}](https://tex.z-dn.net/?f=%5Clarge%7B%5Cboxed%20%7B%5Cbold%20%7BM%20~%20%3D%20~%20%5Cfrac%20%7Bn%7D%20%7BV%7D%7D%7D)
Where
M = Molarity
n = Number of moles of solute
V = Volume of solution
1. 0.350 mol of NaOH in 1.05 L of solution.
n=0.35
V=1.05 L
Molarity :
![\tt M=\dfrac{0.35}{1.05}=0.33](https://tex.z-dn.net/?f=%5Ctt%20M%3D%5Cdfrac%7B0.35%7D%7B1.05%7D%3D0.33)
2. 14.3 g of NaCl in 879 mL of solution.
mol NaCl(MW=58.5 g/mol) :
![\tt mol=\dfrac{mass}{MW}\\\\mol=\dfrac{14.3~g}{58.5~g/mol}=0.244](https://tex.z-dn.net/?f=%5Ctt%20mol%3D%5Cdfrac%7Bmass%7D%7BMW%7D%5C%5C%5C%5Cmol%3D%5Cdfrac%7B14.3~g%7D%7B58.5~g%2Fmol%7D%3D0.244)
Molarity :
![\tt M=\dfrac{0.244}{0.879~L}\\\\M=0.278](https://tex.z-dn.net/?f=%5Ctt%20M%3D%5Cdfrac%7B0.244%7D%7B0.879~L%7D%5C%5C%5C%5CM%3D0.278)
The reaction formula of this is N2 + 3H2 = 2NH3. So the ratio of mol number of N2 and NH3 is 1:2. The mol number of NH3 is 2.27*2=4.54 mol. So the mass is 4.54*17=77.18 g.