Write the balanced

Determine the volume in liters occupied by 22.6 g of I2 gas at STP.

AleksandrR [38]

The volume in liters occupied by 22.6 g of I₂ gas at STP is 1.99 L (answer A)

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

Step: find the moles of I₂

moles= mass÷ molar mass

from periodic table the molar mass of I₂ is 253.8 g/mol

moles = 22.6 g÷253.8 g/mol =0.089 moles

Step 2:find the volume of I₂ at STP

At STP 1 moles =22.4 L

0.089 moles= ? L

<em>by cross multiplication</em>

={ (0.089 moles x 22.4 L) /1 mole} = 1.99 L

6 0

3 years ago

In the following reaction, what is the effect of adding more NO2 to the starting reaction mixture?

Mars2501 [29]

Answer:

It would increase the final quantity of products

Explanation:

According to the Le- Chatelier principle,

At equilibrium state when stress is applied to the system, the system will behave in such a way to nullify the stress.

The equilibrium can be disturb,

By changing the concentration

By changing the volume

By changing the pressure

By changing the temperature

Consider the following chemical reaction.

Chemical reaction:

2NO₂ ⇄ N₂O₄

In this reaction the equilibrium is disturb by increasing the concentration of reactant.

When the concentration of reactant is increased the system will proceed in forward direction in order to regain the equilibrium. Because when reactant concentration is high it means reaction is not on equilibrium state. As the concentration of NO₂ increased the reaction proceed in forward direction to regain the equilibrium state and more product is formed.

5 0

3 years ago

What changes if the degree (amount) of intermolecular bonds of a substance are changed?

elixir [45]

<h2>Answer:</h2>

The correct answers are;

volume of a substance

density of a substance

The volume and the density of the substance depend on inter molecular forces of the substance. So, when we will change the degree of inter molecular forces, whether decrease it or increase it, it will affect the volume and density of a substance.

7 0

4 years ago

Read 2 more answers

If a reaction occurs, what will be the products of the unbalanced reaction below?Cu(s) + Ni(NO3)2(aq)

Sveta_85 [38]

Answer:

Cu(NO3)2 --> MM187.5558

NiNO3 *COEF2* --> 120.6983

3 0

4 years ago

Jill then wrote the formulas for all the possible compounds that sodium can form with the other ions. What formulas did she writ

sp2606 [1]

Explanation:

Sodium has atomic number of 11 and its electronic configuration is given by:

$[Na]=1s^22s^22p^63s^1$

The nearest stable electronic configuration to sodium is of the neon. So, in order to attain stability of noble gas it will loose its single electron.

$Na\rightarrow Na^++1e^-$

$[Na^+]=1s^22s^22p^63s^0$

Sodium has single valency that is 1.

Let nbe the valency of the ion 'X'

By criss-cross method, the oxidation state of the ions gets exchanged and they form the subscripts of the other ions. This results in the formation of a neutral compound.

$Na_nX_1$

So, the formulas for all the possible compounds that sodium can form with the other ions will be:

$Na_nX_1$

4 0

3 years ago