All categories

3 years ago

Like stoichiometry involving mass quantities, stoichiometry involving solutions always includes _____________.

1 answer:

4 0

<span>Answer:
Like Stoichiometry involving mass quantities, Stoichiometry involving solutions always includes <u>Volumes</u>.

Explanation:
Stoichiometry involves calculations related to amount of reactants and products in a reaction. Further, Stoichiometry is divided as,

a) Solution Stoichiometry:
It is based on calculations related to the volume of reactants and products in a solution.

b) Gravimetric Stoichiometry:
It is basically based on the masses of reactants and products in a reaction.

c) Gas Stoichiometry:
It involves the volume of gases in reactant and product side.</span>

You might be interested in

A system is a group of parts that can be considered one unit. Storm systems, ecosystems, and our bodies are natural systems. Car

dangina [55]

An ecosystem is simply a collection of communities of plants, animals, and microbes interacting together and with their physical environments.

<h3>Energy flow in an ecosystem</h3>

Energy enters the ecosystem through a group of living organisms known as the producers. the producers are mainly the green plants that are capable of photosynthesizing.

Photosynthesis converts solar radiation from the sun to chemical energy in green plants. Another group of organisms in the ecosystem, the primary consumers, feed directly on the producers and as such, are able to gain some energy from them.

The secondary consumers obtain their own energy by feeding on primary consumers. Tertiary consumers feed on the secondary consumers for their own energy and the food chain goes on and on.

Only about 10% of the available energy in one trophic level goes to the next trophic level. The rest of the energy is lost as heat to the surroundings. Thus, the producers have the highest energy in the ecosystem while organisms at the top of the food chain have the lowest energy.

More on energy flow in the ecosystem can be found here: brainly.com/question/7582129

#SPJ1

6 0

2 years ago

Which planet has the most prominent rings surrounding it

svlad2 [7]

B: Saturn, because it has over 10 rings.

3 0

3 years ago

When each of the following equilibria is disturbed by increasing the pressure as a result of decreasing the volume, does the num

NISA [10]

Answer:

1. $CO(g) + H_2O(g)\rightleftharpoons CO_2(g) + H_2(g)$ , remain the same.

2. $2CO(g)\rightleftharpoons C(s) + CO_2(g)$ ,increase.

3. $N_2O_4(g)\rightleftharpoons 2NO_2(g)$ , decrease.

Explanation:

Any change in the equilibrium is studied on the basis of Le-Chatelier's principle.

This principle states that if there is any change in the variables of the reaction, the equilibrium will shift in the direction to minimize the effect.

Increase the pressure

If the pressure of the container is increased, the volume will decrease according to Boyle's Law. Now, according to the Le-Chatlier's principle, the equilibrium will shift in the direction where decrease in pressure is taking place.

1. $CO(g) + H_2O(g)\rightleftharpoons CO_2(g) + H_2(g)$

On increasing the pressure ,the equilibrium will shift in direction where decrease in pressure is taking place,so reaction will shift in no direction because number of gaseous moles are same on both sides. Hence no increase in number of moles of products.

2. $2CO(g)\rightleftharpoons C(s) + CO_2(g)$

On increasing the pressure ,the equilibrium will shift in direction where decrease in pressure is taking place,so reaction will shift in forward direction because number of gaseous moles are less on product sides. Hence ,increase in number of moles of products.

3. $N_2O_4(g)\rightleftharpoons 2NO_2(g)$

On increasing the pressure ,the equilibrium will shift in direction where decrease in pressure is taking place,so reaction will shift in backward direction because number of gaseous moles are less on reactant side both sides. Hence, decrease in number of moles of products.

3 0

3 years ago

The gas in an aerosol can is at a pressure of 3.10 atm at 25 degrees Celsius. Directions on the can warn the user not to keep th

kolbaska11 [484]

Answer:

$\boxed {\boxed {\sf 6.4 \ atm}}$

Explanation:

We are asked to find the pressure of a gas in a can given a change in temperature. We will use Gay-Lussac's Law, which states the pressure of a gas is directly proportional to the temperature. The formula for this law is:

$\frac {P_1}{T_1}= \frac {P_2}{T_2}$

Initially, the gas in the aerosol can has a pressure of 3.10 atmospheres at a temperature of 25 degrees Celsius.

$\frac { 3.10 \ atm}{25 \textdegree C}=\frac{P_2}{T_2}$

The temperature is increased to 52 degrees Celsius, but the pressure is unknown.

$\frac { 3.10 \ atm}{25 \textdegree C}=\frac{P_2}{52 \textdegree C}$

We are solving for the new pressure, so we must isolate the variable $P_2$ . It is being divided by 52 degrees Celsius. The inverse operation of division is multiplication, so we multiply both sides of the equation by 52 °C.

$52 \textdegree C *\frac { 3.10 \ atm}{25 \textdegree C}=\frac{P_2}{52 \textdegree C} * 52 \textdegree C$

$52 \textdegree C *\frac { 3.10 \ atm}{25 \textdegree C}=P_2$

The units of degrees Celsius cancel.

$52 *\frac { 3.10 \ atm}{25}=P_2$

$52 *0.124 \ atm = P_2$

$6.448 \ atm = P_2$

The original values of pressure and temperature have 2 and 3 significant figures. Our answer must be rounded to the least number of sig figs, which is 2. For the number we calculated, that is the tenths place. The 4 in the hundredth place tells us to leave the 4 in the tenths place.

$6.4 \ atm \approx P_2$

The gas pressure in the can at 52 degrees Celsius is approximately <u>6.4 atmospheres.</u>

5 0

3 years ago

Particles that are smaller and have ____ generally dissolve faster.(1 point)

saw5 [17]

Answer:

For many solids dissolved in liquid water, the solubility increases with temperature. The increase in kinetic energy that comes with higher temperatures allows the solvent molecules to more effectively break apart the solute molecules that are held together by intermolecular attractions.

Explanation:

7 0

3 years ago

Read 2 more answers