Enter the simplified version of the expression below. (4.7x - 3.25) + (-5.5

Lina20 [59]

Answer:

A single distillation cycle is enough to separate the mixture. ... Simple distillation is the method used to separate substances in mixtures with significantly different boiling points, while fractional distillation is used for mixtures containing chemicals with boiling points close to each other.

Explanation:

5 0

4 years ago

SHOW ALL WORK FOR BRAINLIEST

Anna71 [15]

Answer:

The answer to your question is 37.5 l of water vapor

Explanation:

Data

volume of ethane = 12.5 l

volume of water vapor = ?

Balanced chemical reaction

2C₂H₆ + 7O₂ ⇒ 4CO₂ + 6H₂O

-Convert the volume of C₂H₂ to moles

1 mol of C₂H₂ --------------- 22.4 l

x --------------- 12.5 l

x = (12.5 x 1) / 22.4

x = 0.56 moles

-Calculate the moles of water vapor

2 moles of C₂H₂ --------------- 6 moles of H₂O

0.56 moles of C₂H₂ ---------- x

x = (0.56 x 6) / 2

x = 1.67 moles of H₂O

-Calculate the volume of water vapor

22.4 l of H₂O ----------------- 1 mol

x ----------------- 1.67 moles

x = (1.67 x 22.4) / 1

x = 37.5 l

6 0

3 years ago

Consider a voltaic cell where the anode half-reaction is Zn(s) → Zn2+(aq) + 2 e− and the cathode half-reaction is Sn2+(aq) + 2 e

notsponge [240]

Answer: The concentration of $Sn^{2+}$ in the cell is $9.0\times 10^{-3}M$

Explanation:

We are given:

Oxidation half reaction: $Zn(s)\rightarrow Zn^{2+}(aq.)+2e^-$ $E^o_{Zn^{2+}/Zn}=-0.76V$

Reduction half reaction: $Sn^{2+}(aq.)+2e^-\rightarrow Sn(s)$ $E^o_{Sn^{2+}/Sn}=-0.136V$

The substance having highest positive $E^o$ potential will always get reduced and will undergo reduction reaction. Here, fluorine will undergo reduction reaction will get reduced.