All categories

2 years ago

Who is Gilbert Newton lewis

Chemistry

1 answer:

skelet666 [1.2K]2 years ago

8 0

Gilbert N. Lewis (1875-1946) was an American physical chemist.

His work with heavy water and resources were adapted by Ernest Lawrence in the development of the cyclotron.

SCIENTIFIC CONTRIBUTIONS

Lewis made many contributions to science. He was nominated for the Nobel Prize 41 times, though he was never awarded the prize.

He discovered covalent bonds and electron pairs. He worked with isotope separation, and became the first person to purify a sample of heavy water. The heavy water was later used as projectiles in Lawrence’s 27-inch cyclotron.

He also made contributions in ideas on relativity and acid-base reactions and coined the term “photon” as the smallest unit of light.

You might be interested in

A certain isotope has 53 protons 78 neutrons and 53 electrons. What is its atomic number? What is the mass number of this atom?

statuscvo [17]

Answer:

53 protons
131g
Iodine
Halogens

Explanation:

atomic no. = no. of protons

= 53 proton

mass = no. of protons + no. of

neutrons

= 53 + 78

= 131

5 0

2 years ago

Calculate the mass percent (m/m) of a solution prepared by dissolving 45.09 g of NaCl in 174.9 g of H2O.

inysia [295]

Answer:

20.3 % NaCl

Explanation:

Given data:

Mass of solute = 45.09 g

Mass of solvent = 174.9 g

Mass percent of solution = ?

Solution:

Mass of solution = 45.09 g + 174.9 g

Mass of solution = 220 g

The solute in 220 g is 45.09 g

220 g = 2.22 × 45.09

In 100 g solution amount of solute:

45.09 g/2.22 = 20.3 g

Thus m/m% = 20.3 % NaCl

5 0

3 years ago

Earths mantle is made of a dense thick material that allows movement of crystal plates. Crust plate movement occurs because the

nasty-shy [4]

Answer:

Convection cells

7 0

2 years ago

An ideal gas originally at 0.85 atm and 66°C was allowed to expand until its final volume, pressure and temperature were 94.0mL,

xeze [42]

Answer: The original volume in liters was 0.0707L

Explanation:

Combined gas law is the combination of Boyle's law, Charles's law and Gay-Lussac's law.

The combined gas equation is,

$\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}$

where,

$P_1$ = initial pressure of gas = 0.85 atm

$P_2$ = final pressure of gas = 456 mm Hg = 0.60 atm (760mmHg=1atm)

$V_1$ = initial volume of gas = ?

$V_2$ = final volume of gas = 94.0 ml

$T_1$ = initial temperature of gas = $66^oC=273+66=339K$

$T_2$ = final temperature of gas = $113^oF=318K$ $(32^0F=273K)$

Now put all the given values in the above equation, we get:

$\frac{0.85\times V_1}{339}=\frac{0.60\times 94.0}{318}$

$V_1=70.7ml=0.0707L$ (1L=1000ml)

Thus the original volume in liters was 0.0707L

8 0

2 years ago

the _________ contains the majority of the mass of the atom but is much ________ than the atom. A) nucleus, smaller B) neutrons,

sergeinik [125]

A) nucles
Then B) smaller

6 0

2 years ago

Read 2 more answers

Who is Gilbert Newton lewis ​

Who is Gilbert Newton lewis