All categories

3 years ago

What contribution to atomic theory resulted from albert einstein’s work?

Chemistry

2 answers:

gizmo_the_mogwai [7]3 years ago

7 0

Answer: A new model of the atom that described electrons as being in a cloud

Explanation:

vampirchik [111]3 years ago

7 0

Answer:

A new model of the atom that described electrons as being in a cloud

Explanation:

AP3X

You might be interested in

Trial 12 1.Volume of Acid used ( mL) 2020 2.Molarity of acid used (M) 0.0160.016 3.Initial volume reading of base buret 018.6 4.

arsen [322]

Answer:

$V_B = 18.3mL$ -- Volume of base used

$M_B = 0.0175M$ --- Molarity of base

Explanation:

Given

$V_A = 20mL$ -- Volume of acid used

$V_B_1 = 18.6mL$ --- Buret Initial reading

$V_B_2 = 36.9mL$ --- Buret Final reading

$M_A = 0.016M$ --- Molarity of the acid

Solving (a): Volume of base used (VB)

This is calculated by subtracting the initial reading from the final reading of the base buret.

i.e.

$V_B = V_B_2 - V_B_1$

$V_B = 36.9mL - 18.6mL$

$V_B = 18.3mL$

Solving (b): Molarity base (MB)

This is calculated using:

$M_A * V_A = M_B * V_B$

Make MB the subject

$M_B = \frac{M_A * V_A }{V_B}$

This gives:

$M_B = \frac{0.016M *20mL}{18.3mL}$

$M_B = \frac{0.016M *20}{18.3}$

$M_B = \frac{0.32M}{18.3}$

$M_B = 0.0175M$

Solving (c): <em>There is no such thing as average molarity</em>

5 0

3 years ago

Vinegar is an aqueous solution of acetic acid, ch3cooh. a 5.00 ml sample of a particular vinegar requires 26.90 ml of 0.175 m na

Fed [463]

The molarity of acetic acid in the vinegar is 0.94 M

<u><em> calculation</em></u>

Step 1: write the balanced equation between CH3COOH + NaOH

that is CH3COOH + NaOH → CH3COONa + H2O

step 2 : find the moles of NaOH

moles =molarity x volume in L

volume in liters = 26.90/1000=0.0269 l

moles = 0.175 mol /L x 0.0269 L =0.0047 moles of NaOH

Step 3: use the mole ratio to find moles of CH3COOH

that is the mole ratio of CH3COOH: NaOH is 1:1 therefore the moles of CH3COOH is =0.0047 moles

Step 4: find the molarity of CH3COOH

molarity = moles/volume in liters

volume in liter = 5.00/1000 =0.005 l

molarity is therefore=0.0047 moles/ 0.005 l = 0.94 M

4 0

4 years ago

1.5L of water is boiled to steam at a temperature of 100 degrees Celsius and creates 3.5atm of pressure on the container. How ma

Lyrx [107]

I did for you hope you the best

5 0

3 years ago

Calculate the amount of heat energy required to heat up 15.9 grams of ice from -4 °C to 14°C.

Aleks [24]

Hi how are you doing today Jasmine

8 0

3 years ago

Which composer made it a goal to create compositions that sounded truly american?.

MAVERICK [17]

Given what we know, we can confirm that the composer who made it a goal to create compositions that sounded truly American was Aaron Copland.

<h3>Who was Aaron Copland?</h3>

Aaron Copland was an American composer, among his other disciplines, best known for his jazz-styled music. He went on to win an Oscar award for film composing for the movie The Heiress (1949).

Therefore, we can confirm that the composer who made it a goal to create compositions that sounded truly American was Aaron Copland.

To learn more about music visit:

brainly.com/question/8051042?referrer=searchResults

7 0

3 years ago