All categories

2 years ago

What is the weight of 4.30 mole of sodium

Chemistry

1 answer:

Dovator [93]2 years ago

3 0

98.857g Na

To find this, set up an equation as so:

4.3 mol Na = $\frac{22.99g Na}{1 mol Na}$

Multiply everything on the top and divide that by everything on the bottom to get the final answer of 98.857g Na.

Hope this helps!

You might be interested in

A 49.48-mL sample of an ammonia solution is analyzed by titration with HCl. It took 38.73 mL of 0.0952 M HCl to titrate the ammo

Kryger [21]

Answer:

M₂ = 0.0745 M

Explanation:

In case of titration , the following formula can be used -

M₁V₁ = M₂V₂

where ,

M₁ = concentration of acid ,

V₁ = volume of acid ,

M₂ = concentration of base,

V₂ = volume of base .

from , the question ,

M₁ = 0.0952 M

V₁ = 38.73 mL

M₂ = ?

V₂ = 49.48 mL

Using the above formula , the molarity of ammonia , can be calculated as ,

M₁V₁ = M₂V₂

0.0952 M * 38.73 mL = M₂* 49.48 mL

M₂ = 0.0745 M

8 0

2 years ago

Which is a force that holds atoms together?

polet [3.4K]

The answer is going to be “chemical bond” hope you have a good day and hope this helps

7 0

2 years ago

Read 2 more answers

What type of bond would form between two atoms of selenium?

siniylev [52]

Answer:

the correct answer is B

hope it helps !!!

8 0

2 years ago

What would you predict for the lengths of the bonds in no2− relative to n−o single bonds and double bonds?

djverab [1.8K]

The bonds in no2− relative to n−o

8 0

2 years ago

Read 2 more answers

A 100-gram sample of material requires 1220 calories of heat energy to raise its temperature from 20 0C to 80 0C. What is the sp

SashulF [63]

Taking into account the definition of calorimetry, sensible heat and latent heat, the specific heat capacity of the material is 0.203 $\frac{calories}{gC}$ .

<h3>Calorimetry</h3>

Calorimetry is the measurement and calculation of the amounts of heat exchanged by a body or a system.

Sensible heat is defined as the amount of heat that a body absorbs or releases without any changes in its physical state (phase change).

The amount of heat a body receives or transmits is determined by:

Q = c× m× ΔT

where Q is the heat exchanged by a body of mass m, made up of a specific heat substance c and where ΔT is the temperature variation.

<h3>Specific heat capacity of the material</h3>

In this case, you know:

Q= 1220 calories
c= ?
m= 100 g
ΔT=Tfinal - Tinitial= 80 C - 20 C= 60 C

Replacing in the definition of amount of heat:

1220 calories= c× 100 g× 60 C

Solving:

c= 1220 calories÷ (100 g× 60 C)

<u><em>c= 0.203 </em></u> $\frac{calories}{gC}$

Finally, the specific heat capacity of the material is 0.203 $\frac{calories}{gC}$ .

Learn more about calorimetry:

brainly.com/question/14057615?referrer=searchResults

brainly.com/question/24988785?referrer=searchResults

brainly.com/question/21315372?referrer=searchResults

brainly.com/question/13959344?referrer=searchResults

brainly.com/question/14309811?referrer=searchResults

brainly.com/question/23578297?referrer=searchResults

3 0

1 year ago