3 years ago

Who identified the electron?

Chemistry

2 answers:

liraira [26]3 years ago

8 0

George Johnstone Stoney

____ [38]3 years ago

7 0

George Johnstone Stoney

You might be interested in

When performing an acid base titration why is it important to swirl the solution?

zubka84 [21]

That way the solution is througly dissolve

6 0

4 years ago

Determine la cantidad aproximada de nitrato potásico (NaNO3) que habrá que mezclar con 150 g de agua para obtener una disolución

hammer [34]

Answer:

Determine the approximate amount of potassium nitrate (NaNO3) that must be mixed with 150 g of water to obtain a saturated solution at 10ºC.

A) 80 g

B) 40 g

C) 120 g

D) 160 g

4 0

3 years ago

If a sample of air in a closed container was heated, would the total pressure of the air in the container increase, decrease, or

telo118 [61]

Answer: Stay the same

Explanation:

Boyle's law is one of the fundamental gas laws, that describes the state of an ideal gas at a constant temperature. It states that the volume of a gas is inversely proportional to the external pressure applied at a constant temperature.

5 0

3 years ago

A voltaic cell is constructed from an Ni2+(aq)−Ni(s) half-cell and an Ag+(aq)−Ag(s) half-cell. The initial concentration of Ni2+

SCORPION-xisa [38]

Explanation:

For what I can see, is missing the concentration of [Ag+] in the half-cell. To calculate it:

Niquel half-cell

Oxidation reaction: $Ni \longrightarrow Ni^{2+}+2 e^-$

$E=E^0 - \frac{R*T}{n*F}*ln(1/[Ni^{2+}])$

Assuming T=298 K / R=8.314 J/mol K / F=96500 C

$E=-0.23V - \frac{8.314*298}{2*96500}*ln(1/0.014M)$

$E=-0.285V$

Silver half-cell

Reduction reaction: $Ag^+ + e^- \longrightarrow Ag$

$E=E^0 - \frac{R*T}{n*F}*ln(1/[Ag+])$

$E_{cell}=E_{red} - E_{ox}$

$E_{red}=1.12 V + (-0.855V)=0.835V$

Assuming T=298 K / R=8.314 J/mol K / F=96500 C

$0.835V=0.8V - \frac{8.314*298}{1*96500}*ln(1/[Ag+])$

$[Ag+]=0.26 M$

3 0

3 years ago

What does it mean by the gas law? Can someone tell me how to do it step by step please it’s my final project

Rus_ich [418]

Answer:

gas laws involve the physical laws that describe the properties of gases.

Explanation:

4 0

3 years ago