1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ket [755]
3 years ago
9

A mixture of 10.0 g of Ne and 10.0 g Ar have a total pressure of 1.6 atm. What is the partial pressure of Ne?

Chemistry
2 answers:
Oksana_A [137]3 years ago
8 0

Answer: 1.1atm

Explanation: A mixture of 10.0 g of Ne and 10.0 g of Ar has a total pressure of 1.6 atm. What is the partial pressure of Ne?

a. 1.1 atm

b. 0.8 atm

c. 0.54 atm

d. 0.40 atm

e. 1.3 atm

In any mixture of gases, the partial pressure of the individual components of the mixture is the pressure which that component would normally occupy if it were present alone under the same circumstance. To calculate the partial pressure (p) of Ne in a mixture of Ne and Ar, the partial pressure of a gas in a mixture is given by mole fraction (X) of the gas multiplied by the total pressure (P) of the mixture.

n Ne = 10g /20.18 g/gmol = 0.4955 moles

n Ar = 10g /39.95 g/gmol = 0.2503 moles

Total number of moles = 0.4955 + 0.2503 = 0.7458 moles

X Ne = 0.4955 / 0.7458 = 0.6644

p Ne = (X Ne)(P)

= 0.6644 x 1.6 = 1.063 atm

Which is approximately 1.1atm as answer

Natasha2012 [34]3 years ago
7 0
If u add u will get ur answer
You might be interested in
Neutrons have. a.negative b.positive c.no charge d.nucleus
Firdavs [7]
A negative That's the answer
5 0
3 years ago
?Where did the mass of the forest trees come from? What happens to that mass when the forest burns?
Gala2k [10]

Answer:

Forests prevent desertification.

Explanation:

5 0
3 years ago
How do I do this and what are the answers?
vodka [1.7K]
I cannot see your question to help you... sorry
6 0
3 years ago
If you have 222 g of radioisotope with a half-life of 5 days, how much isotope would remain after 15 days?
Dima020 [189]
If the half life is 5 days, you would have to divide 222 by 2 3 times.
so 222/2 =111g
111/2 = 55.5g
55.5/2 = 27.75g

after four half life the mass would be
27.75/2
13.875g

the percent would be
13.875/222
= 6.25%
7 0
3 years ago
Use the standard reaction enthalpies given below to determine ΔH°rxn for the following reaction:P4(g) + 10 Cl2(g) → 4PCl5(s) ΔH°
miskamm [114]

<u>Answer:</u> The \Delta H^o_{rxn} for the reaction is -1835 kJ.

<u>Explanation:</u>

Hess’s law of constant heat summation states that the amount of heat absorbed or evolved in a given chemical equation remains the same whether the process occurs in one step or several steps.

According to this law, the chemical equation is treated as ordinary algebraic expressions and can be added or subtracted to yield the required equation. This means that the enthalpy change of the overall reaction is equal to the sum of the enthalpy changes of the intermediate reactions.

The given chemical reaction follows:

P_4(g)+10Cl_2(g)\rightarrow 4PCl_5(s)      \Delta H^o_{rxn}=?

The intermediate balanced chemical reaction are:

(1) PCl_5(s)\rightarrow PCl_3(g)+Cl_2(g)    \Delta H_1=157kJ   ( × 4)

(2) P_4(g)+6Cl_2(g)\rightarrow 4PCl_3(g)     \Delta H_2=-1207kJ

The expression for enthalpy of the reaction follows:

\Delta H^o_{rxn}=[4\times (-\Delta H_1)]+[1\times \Delta H_2]

Putting values in above equation, we get:

\Delta H^o_{rxn}=[(4\times (-157))+(1\times (-1207))=-1835kJ

Hence, the \Delta H^o_{rxn} for the reaction is -1835 kJ.

6 0
3 years ago
Other questions:
  • Match each scientist with the best description of his work.
    6·1 answer
  • How does an acid–base indicator react when placed in an acidic solution?
    5·2 answers
  • Water can resist a greater external force than ethanol can. Which statement best describes this difference? Water has less capil
    13·2 answers
  • Match the correct term with its definition. The color of the powder of a mineral. Answer 1 The sinking of one lithospheric plate
    5·1 answer
  • Many homeowners treat their lawns with CaCO3(s) to reduce the acidity of the soil. Write a net ionic equation for the reaction o
    10·1 answer
  • What is the diagram of 2CO2
    12·1 answer
  • What is the momentum of a cat of mass 4 kg that is running south with a speed of 1.5 m/s?
    13·2 answers
  • The positively charged particles in an atoms nucleus is the A electron. B neutron. C proton. D isotope.
    8·1 answer
  • Reactants capable of interacting to form products in a chemical reaction must first overcome a thermodynamic barrier know as the
    14·1 answer
  • Determine the partial pressure and number of moles of each gas in a 15.75-L vessel at 30.0 C containing a mixture of xenon and n
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!