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klemol [59]
3 years ago
15

What Period # is this element found in? P​

Chemistry
1 answer:
77julia77 [94]3 years ago
8 0
15 is the group that phosphorus is found in.
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Snezhnost [94]
This is due to the solubility of CO₂ in blood is more than the solubility of Oxygen in blood 
7 0
3 years ago
For the reaction POCl3(g) ⇀↽ POCl(g) + Cl2(g) Kc = 0.30. An initial 0.3 moles of POCl3 are placed in a 3.1 L container with init
olya-2409 [2.1K]

<u>Answer:</u> The final concentration of POCl_3 is 0.019767 M

<u>Explanation:</u>

Molarity is calculated by using the equation:

\text{Molarity}=\frac{\text{Number of moles}}{\text{Volume of the solution}}

Initial moles of POCl_3 = 0.3 moles

Volume of solution = 3.1 L

\text{Initial concentration of }POCl_3=\frac{0.3}{3.1}=0.097M

For the given chemical equation:

                        POCl_3(g)\rightleftharpoons POCl(g)+Cl_2(g)

<u>Initial:</u>                0.097

<u>At eqllm:</u>         0.097-x             x              x

The expression of K_c for above equation follows:

K_c=\frac{[POCl][Cl_2]}{[POCl_3]}

We are given:

K_c=0.30

Putting values in above expression, we get:

0.30=\frac{x\times x}{(0.097-x)}\\\\x=0.077233,-0.377

Neglecting the negative value of 'x' because concentration cannot be negative.

So, final concentration of POCl_3 = (0.097 - x) = (0.097 - 0.077233) = 0.019767 M

Hence, the final concentration of POCl_3 is 0.019767 M

4 0
3 years ago
Select the correct answer.
DanielleElmas [232]

Answer:

% composition of glucose =  85 %

Explanation:

Given Data

moles of glucose (C₆H₁₂O₆) = 1.3 mole

Total mass of mixture = 276 g

percent composition of glucose (C₆H₁₂O₆) = ?

Solution

Number of moles are given so we find out the mass of C₆H₁₂O₆

<em>mass = moles × molar mass</em>

Molar mass of glucose = 180.156 g/mol

mass = 1.3 mol × 180.156 g/mol

mass = 234.2 g

Now we find out the percent composition of glucose

% composition =  (mass of compound ÷ mass of mixture) × 100

% composition =  ( 234.2 g ÷ 276 g) × 100

% composition =  0.85 × 100

% composition =  85 %

6 0
3 years ago
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Hi! This is a science question...
Studentka2010 [4]

Answer:

C: remaining at rest

Explanation:

Acceleration (a) is the change in velocity (Δv), remaining at rest is not changing the velocity.

8 0
2 years ago
There are two types of physical changes and chemical reactions- endothermic and exothermic. On the diagram below, which picture
Agata [3.3K]

Answer:

it is b because its releases heat in to all directions and not b because it staying inside and not releasing anything :)

Explanation:

6 0
4 years ago
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