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
Vika [28.1K]
3 years ago
14

Two identical balloons are inflated to a volume of 1.00 L with a particular gas. After 12 hours, the volume of one balloon has d

ecreased by 0.200 L. In the same time, the volume of the other balloon has decreased by 0.0603 L. If the lighter of the two gases was helium, what is the molar mass of the heavier gas
Chemistry
1 answer:
ratelena [41]3 years ago
5 0

Answer:

43.7

Explanation:

Volume of gas = 1.00L

Time = 12 hours

Decrease in 1 balloon = 0.200L

Decrease in second balloon = 0.0603L

R1 = rate at which helium diffuses= 0.20/12= 0.0166

R2 = rate at which heavier gas diffuses = 0.0693/12 = 0.00502

Using grahms law

R1²/R2² = m/4

= 0.0166²/0.00502² = m/4

= 10.935 = m/4

When we cross multiply

m is the molar mass of heavier gas = 43.73

You might be interested in
What would happen if you didn't have chemical energy in your body
andrew-mc [135]
According to law of thermodynamics, energy can neither be created nor can be destroyed. It can be converted from one from one form to another. 

Hence, the food that we eat is a source of energy. The chemical energy stored in food, is utilized for various function of body such as breathing, walking, talking, etc. Now, if you body does not have chemical energy, if will not be able to perform various task, which are essential for living. 

Due to this, <span>absence of  chemical energy in the body, can </span>will eventually lead to death.
7 0
3 years ago
Read 2 more answers
Which two types of cells are involved in fertilization?
astra-53 [7]

Which two types of cells are involved in fertilization?

\sf\purple{D.\: egg\: cell;\: sperm \:cell}✅

  • Gametes are an organism's reproductive cells. The female gametes are called ova or egg cells, and the male gametes are called sperm.
  • During fertilisation, the gametes (an egg and sperm) fuse to form a zygote.

\circ \: \: { \underline{ \boxed{ \sf{ \color{green}{Happy\:learning.}}}}}∘

4 0
3 years ago
The following data were measured for the reaction BF3(g)+NH3(g)→F3BNH3(g): Experiment [BF3](M) [NH3](M) Initial Rate (M/s) 1 0.2
Rama09 [41]

Answer:

-r_{A}=k\times[BF_3]^{1}\times[NH_3]^{1}

Explanation:

The rate law of a chemical reaction is given by

-r_{A}=k\times[BF_3]^{\alpha}\times[NH_3]^{\beta}

This law can be written for any experiment, and making the quotient between those expressions the reaction orders can be found

Between experiments 1 and 2  

\frac{-r_{A1}}{{-r}_{A2}}=\left(\frac{\left[NH_3\right]_1}{\left[NH_3\right]_2}\right)^\beta

Then the expression for the calculation of \beta

\beta=\frac{ln\frac{-r_{A1}}{-r_{A2}}}{ln\left(\frac{\left[NH_3\right]_1}{\left[NH_3\right]_2}\right)}=\frac{ln\frac{0.2130}{0.1065}}{ln\left(\frac{0.250}{0.125}\right)}

Resolving  

\beta=1

Doing the same between experiments 3 and 4 the expression for \alpha is

\alpha=\frac{ln\frac{-r_{A3}}{-r_{A4}}}{ln\left(\frac{\left[BF_3\right]_3}{\left[BF_3\right]_4}\right)}=\frac{ln\frac{0.0682}{0.1193}}{ln\left(\frac{0.200}{0.350}\right)}

Resolving  

\alpha=1

This means that the rate law for this reaction is  

-r_{A}=k\times[BF_3]^{1}\times[NH_3]^{1}

5 0
3 years ago
We both have 10 neutrons in our nuclei. What are we?
Goryan [66]
Not so sure but i think neon
7 0
3 years ago
Read 2 more answers
Water evaporating from a puddle is an example of a
Flauer [41]
It is an example of physical change. The molecules are not changing, so it is not chemical, and a physical property is something that a physical thing has.


5 0
3 years ago
Read 2 more answers
Other questions:
  • The density of Jell-O® is 1.56 g/cm3. A suite in a dorm can hold 6.35 × 107 g of Jell-O®. What is the volume of the suite in ft3
    12·1 answer
  • Classify these molecules as polar or nonpolar. Drag each item to the appropriate bin.
    13·1 answer
  • The carbon atom is uniquely suited to building large molecules because it:
    6·1 answer
  • When balancing a redox reaction, you are balancing
    8·2 answers
  • What are some things you can do to keep ure heart healthy
    6·2 answers
  • Calculate the relative molecular<br> mass of Zn (NO3)2
    10·2 answers
  • For the following incomplete combustion reaction, what are the coefficients necessary to balance the equation:
    13·1 answer
  • The lewis dot structure rule states that
    5·1 answer
  • Please help me on this question
    5·1 answer
  • chegg The value for the equilibrium constant for the following chemical reaction, the auto-ionization of water, is 1.0x10-14 at
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!