Ask question

Ask question

All categories

3 years ago

12

How many moles of Ar atoms are there in 202 L of Ar gas at STP? A) 1.20 x 1024 mol B) 1.11 x 10-1 mol C) 4.52 x 103 mol D) 9.02

mol E) 1.79 mol
a
1.20 x 1024 moles

b
9.02 mol
c
1.11 x 10-1 mol

d
4.52 x 103 mol

2 answers:

damaskus [11]3 years ago

7 0

Answer:

4.52 x 10^3 mol

Explanation:

BABABOOEY

Alina [70]3 years ago

5 0

Answer:

4.52 x 103 mol

Explanation:

You might be interested in

You have 16.0 g of some compound and you perform an experiment to remove all of the oxygen, 11.2 g of iron is left. What is the

Makovka662 [10]

The empirical formula of this compound is $Fe_2O_3$

<h3>Empirical formula </h3>

To calculate the empirical formula of a compound, the value of moles of each element is needed.

As we have the information of the mass value, we will use the molar mass expression, which corresponds to:

$MM_O = 16g/mol\\MM_Fe = 55.8g/mol$

$MM = \frac{m}{mol}$

O

$16 = \frac{4.8}{x}$

$x = 0.3mol$

Fe

$55.8=\frac{11.2}{x}\\x = 0.2$

As the value of the empirical formula must be an integer, simply multiply the two values by a common factor:

$O = 0.3 \times 10 = 3\\Fe = 0.2 \times 10 = 2$

$Fe_2O_3$

So, the empirical formula of this compound is $Fe_2O_3$ .

Learn more about empirical formula: brainly.com/question/1247523

3 0

2 years ago

An example of an ____ reaction is when metals react with oxygen to form metal _____.

Reptile [31]

<em>An example of a</em><em>n</em><em> </em><em><u>exothermic</u></em><em> </em><em>reaction is when metals react with oxygen to form metal</em><em> </em><em><u>Oxides</u></em>

<em><u>Hope</u></em><em><u> </u></em><em><u>this</u></em><em><u> </u></em>helped you- have a good day bro cya)

4 0

3 years ago

In terms of shape and volume, how can a gas be defined ?

Gnoma [55]

Particles in a gas are far apart compared to a solid or liquid, allowing it not to have a definitive shape or volume. This also means that gases can fill any container and be easily compressed.

4 0

3 years ago

If molecule dissociates in water what does it do

natita [175]

It either forms a base or an acid...I think that's the answer you're looking for

4 0

3 years ago

Transition metals can be found in Families 3 through 12 on the periodic table. What property do transition metals share?

Vedmedyk [2.9K]

The answer might be C

8 0

3 years ago

Read 2 more answers