All categories

3 years ago

The partial pressures of the gases in a mixture are 0.00461 atm O2, 1.78 atm

Chemistry

1 answer:

avanturin [10]3 years ago

7 0

Answer: The total pressure of the mixture is 2.76 atm

Explanation:

According to Dalton's law, the total pressure is the sum of individual pressures.

$p_{total}=p_A+p_B+p_C...$

Given : $p_{total}$ =total pressure of gases = ?

$p_{O_2}$ = partial pressure of oxygen = 0.00461 atm

$p_{N_2}$ = partial pressure of nitrogen = 1.78 atm

$p_{Ar}$ = partial pressure of argon = 0.975 atm

putting in the values we get:

$p_{total}=0.00461atm+1.78atm+0.975atm$

$p_{total}=2.76atm$

Thus the total pressure of the mixture is 2.76 atm

You might be interested in

A compound is made up of at least

solmaris [256]

Two or more different elements

5 0

3 years ago

What metal will have properties most similar to those of chromium (Cr)? Why?

garri49 [273]

That element is manganese. As they are in same horizontal row (period) and are next to each other. That is why they show same properties.

Hope this helps xox :)

5 0

4 years ago

Explain how changing the concentration The enthalpy change for the reaction, 3CO (g) 2Fe2O3 (s) Imported Asset Fe(s) 3CO2 (g), c

ycow [4]

<u>Answer:</u> For the given equation, only iron has the value of $\Delta H_f$ equal to 0 kJ.

<u>Explanation:</u>

Enthalpy change is defined as the difference in enthalpies of all the product and the reactants each multiplied with their respective number of moles. It is represented as $\Delta H^o$

The equation used to calculate enthalpy change is of a reaction is:

$\Delta H^o_{rxn}=\sum [n\times \Delta H^o_f(product)]-\sum [n\times \Delta H^o_f(reactant)]$

For the given chemical reaction:

$3CO(g)+2Fe_2O_3(s)\rightarrow Fe(s)+3CO_2(g)$

The equation for the enthalpy change of the above reaction is:

$\Delta H^o_{rxn}=[(1\times \Delta H^o_f_{(Fe(s))})+(3\times \Delta H^o_f_{(CO_2(g))})]-[(3\times \Delta H^o_f_{(CO(g))})+(2\times \Delta H^o_f_{(Fe_2O_3(s))})]$

The enthalpy of formation for the substances present in their elemental state is taken as 0.

Here, iron is present in its elemental state which is solid.

Hence, for the given equation, only iron has the value of $\Delta H_f$ equal to 0 kJ.

7 0

3 years ago

A rock falls off a cliff and hits the ground after three seconds. What is its velocity right before it hits the ground?

Amiraneli [1.4K]

To solve this kinematics formula use the following equation:

Vf = Vi + at
Vf = 0 + (9.81 m/s^2)(3 seconds)
Vf = 29.43 m/s and or about 29.4 m/s of reported to 3 significant figures.

4 0

4 years ago

Read 2 more answers

Elements in group 1 will (lose or gain) electrons to obtain a noble gas structure. How many electrons will the element gain or l

Whitepunk [10]

Answer is: elements in group 1 will lose electrons to obtain a noble gas structure. They will lose 1 electron.
For example ₃Li 1s²2s¹ will lose one electron from 2s oribtal to obtain helium structure ₂He 1s².
Or sodium ₁₁Na 1s²2s²2p⁶3s¹ will also lose one electron to obtain neon structure ₁₀Ne 1s²2s²2p⁶.

3 0

3 years ago