The answer is Solid
Solids have a fixed volume, fixed shape, and cannot be compressed because their particles are close together
Answer:
Check the explanation
Explanation:
As we know the reaction of EDTA and
+ and EDTA and
+
Let us say that the ratio is 1:1
Therefore, the number of moles of
+ = molarity * volume
= 0.0400M * 0.011L
= 0.00044 moles
Therefore excess EDTA moles = 0.00044 moles
Given , initial moles of EDTA = 0.0430 M * 0.025 L
= 0.001075
Therefore reacting moles of EDTA with
= 0.001075 - 0.00044 = 0.000675 moles
Let us say that the ratio between
and EDTA is 1:1
Therefore moles of
= 0.000675 moles
Molarity = moles / volume
= 0.000675 moles / 0.057 L
= 0.011 M (answer).
Answer:
![\boxed{\text{46.07 g}}](https://tex.z-dn.net/?f=%5Cboxed%7B%5Ctext%7B46.07%20g%7D%7D)
Explanation:
M_r: 46.07
C₂H₅OH(ℓ) + 3O₂(g) ⟶ 2CO₂(g) + 3H₂O(ℓ); ΔH = -1418 kJ·mol⁻¹
![\text{Mass} = \text{1418 kJ} \times \dfrac{\text{1 mol}}{\text{1418 kJ}} \times \dfrac{\text{46.07 g}}{\text{1mol}}= \textbf{46.07 g}\\\\\text{1418 kJ are equivalent to $\boxed{\textbf{46.07 g}}$ of ethanol}](https://tex.z-dn.net/?f=%5Ctext%7BMass%7D%20%3D%20%5Ctext%7B1418%20kJ%7D%20%5Ctimes%20%5Cdfrac%7B%5Ctext%7B1%20mol%7D%7D%7B%5Ctext%7B1418%20kJ%7D%7D%20%5Ctimes%20%5Cdfrac%7B%5Ctext%7B46.07%20g%7D%7D%7B%5Ctext%7B1mol%7D%7D%3D%20%5Ctextbf%7B46.07%20g%7D%5C%5C%5C%5C%5Ctext%7B1418%20kJ%20are%20equivalent%20to%20%24%5Cboxed%7B%5Ctextbf%7B46.07%20g%7D%7D%24%20of%20ethanol%7D)
Answer: C
Explanation: Picture attached.