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3 years ago

I’m about to die of cuteness overload Naruto, sasuke, sakura, and Kakashi-sensei

Chemistry

2 answers:

Gnoma [55]3 years ago

7 0

Answer:

dfadskjfkhasdljkfasdhfaljksfh so cuttttteeee :3

;w;""'

vlabodo [156]3 years ago

6 0

I am so glad i have now seen this picture. my life is now complete

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A sample of gas has a volume of 1.20 L at standard conditions. Find its volume at 35.0 oC and 900 torr. (R = 62.4 L torr/K *mol)

timurjin [86]

Answer:

Option A. 1.14L

Explanation:

Data obtained from the question include:

V1 = 1.20 L

P1 = at stp = 760torr

T1 = at stp = 273K

P2 = 900torr

T2 = 35°C = 35 + 273 = 308K

V2 =?

Using P1V1/T1 = P2V2/T2, we can obtain the new volume as follows:

P1V1/T1 = P2V2/T2

(760 x 1.2)/273 = (900 x V2) /308

Cross multiply to express in linear form

273 x 900 x V2 = 760 x 1.2 x 308

Divide both side by 273 x 900

V2 = (760 x 1.2 x 308) /(273 x 900)

V2 = 1.14L

3 0

3 years ago

Read 2 more answers

A balanced chemical equation contains the term "2Ba(OH)2⋅8H2O." How many atoms of each element does this represent in the molecu

PSYCHO15rus [73]

Answer:

$\begin{gathered} \text{Barium = }1.204\times10^{24}\text{ atoms} \\ \text{Oxygen = }1.204\times10^{25}\text{ atoms} \\ \text{Hydrogen = }2.1672\times10^{25}\text{ atoms} \end{gathered}$

Explanation:

Here, we want to know the number of atoms of each of the elements present in the given term

For the Barium, it is only affected by the external 2, so we have 2 Barium atoms only

For oxygen, we have a set in OH and another in H2O. For the OH own, we have 2 oxygen atoms and for the H2O , we have 8 atoms. That makes a total of 10, which when multiplied by the first 2 outside, gives 20

For Hydrogen, we have two sets, one with OH and the other with H2O

For the one with OH, we have 2 while for the one with H2O, we have 16. That makes a total of 18 which when multiplied by 2 gives a total of 36

Thus, we have each of the elements and their counts as follows:

Barium = 2

Oxygen = 20

Hydrogen = 36

Mathematically:

$1\text{ mole = 6.02 }\times10^{23}\text{ atoms}$

Thus:

$\begin{gathered} 2\text{ moles of Ba will contain} \\ 2\times\text{ 6.02 }\times10^{23}\text{ atoms = 1.204}\times10^{24}\text{ atoms} \\ \\ 20\text{ moles of oxygen will contain:} \\ 20\times\text{ 6.02}\times10^{23}\text{ atoms = 1.204}\times10^{25}\text{ atoms} \\ \\ 36\text{ moles of hydrogen will contain} \\ 36\times6.02\times10^{23}\text{ atoms = 2.1672}\times10^{25}\text{ atoms} \end{gathered}$

5 0

2 years ago

Which of the following would have the greatest force of gravitational attraction?

Orlov [11]

A very rare earth magnet because it can let you get pulled up by a forklift and you won't fall off.the magnet wont either

6 0

3 years ago

Most galaxies in the universe are irregular-shaped galaxies. True False

klemol [59]

<h2>Hello!</h2>

The answer is: False.

Why?

It's known that most common galaxies are spiral - shaped, but according to some studies, the irregular - shaped galaxies can not be even considered "spiral shaped".

Irregular - shaped are galaxies defined by their lack of structures, and they were formed by an external gravitonal force acting, in fact, it's believed that they were spiral or elliptical galaxies before.

An example of irregular - shaped galaxies is Small Magenallic Cloud.

Have a nice day!

5 0

4 years ago

Read 2 more answers

A sample of nitrogen gas has the temperature drop from 250.°c to 150.°c at constant pressure. what is the final volume if the in

Leviafan [203]

Charles law gives the relationship between temperature of gas and volume of gas.
It states that for a fixed amount of gas, temperature is directly proportional to volume of gas.
V / T = k
where V- volume , T - temperature and k - constant
$\frac{V1}{T1} = \frac{V2}{T2}$
parameters for the first instance are on the left side and parameters for the second instance are on the right side of the equation.
T1 = 250 °C + 273 = 523 K
T2 = 150 °C + 273 = 423 K
Substituting the values in the equation,

$\frac{310 mL}{523 K} = \frac{V}{423K}$
V = 251 mL
the new volume is 251 mL

6 0

4 years ago