Balloon A indicates accurately illustrates the effusion of a gas from the central balloon.
The root mean square velocity of orange molecules is greater. As a result, they travel faster than blue molecules. They are more easily able to escape from balloons than blue ones. As a result, balloon A (with less orange and more blue) indicates proper effusion.
The root means square velocity v is given by the formula v = (3RT/M)1/2,
So,
v is proportional to (1/M)^1/2
The effusion rate is proportional to ( 1/M)^1/2
As a result, the rate of effusion is proportional to v. ( room means square velocity)
Relative rate of effusion for orange spheres compared to blue spheres
= (v of orange / v of blue)
= (495 m/s / 380 m/s)
= 1.303
As an outcome, the relative rate of effusion is 1.303. (orange is 1.303 times more effused than blue).
As a result, they travel at a faster rate than blue molecules. They are more easily able to escape from balloons than blue ones.
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Convert 544 Calories to Joule
Answer:
2276.1 Joules
Explanation
One calorie is equal to 4.184 Joules. So, 544 calories will be equal to 544*4.184=2276.1 Joules
How do we designate recessive
genes?
A. They are male.
B. They are lower case letters.
C. They are female.
D. They are capital letters.
How much energy is used to heat 250 g of ice from –15°C to steam at 105°C? (Hint: 5 steps, all positive)
Answer:
Explanation: Q1 = mc(ice) ΔT (ice warms)
Q2 = ms (ice melts)
Q3 = mc((water) ΔT (water warms)
Q4 = mr (water boils)
Q5 = mc(vapour)ΔT
what element has 5 protons, 7 electrons, and 6 neutrons
Answer: Boron
Explanation: lol
Answer:
Boron. (What kind of name is that?????????????)
Explanation:
Calculate the answer. Express it in scientific notation. All answers should have the correct number of significant figures.
(1.632) (4.0 x 104) =
(1.632) (4.0 x 104)
= (1.632)(416)
=678.912
6.8* 10^2.
Not sure if it's the right sig figs.
Answer:
417.632 (i dont know if u need to round or somehting but this is what i think is right)
Explanation:
4.0 x 104 = 416
(1.632) (416) = 417.632
calculate the number of atoms in 112 g of iron.
Answer:
1 mole of iron (Fe) = 56 g (molar mass)
Since 56 g of iron = 1 mol.
Therefore, 112 g of iron= 1/ 56 ×112 mol = 2 mol.
Explanation:
Which is the conjugate acid of HSO4
Answer:
sulfuric acid
Explanation:
The conjugate acid of HSO4 -1 is H2 SO4. Adding one hydrogen ion to the hydrogen sulfate ion generates the conjugate acid. Its name is sulfuric acid.
The image shows two spheres hung from a thin rope. The spheres do not affect each other.
What is most likely true about these spheres?
-Both spheres are neutral.
-Both spheres have a positive charge.
-Both spheres have a negative charge.
-One sphere has a positive charge, and the other has a negative charge.
Answer:
both spheres have a positive charge
Which contains more atoms; 1mol H2O2, 1mol C2H6, or 1mol CO?
Answer:
C2H6 has the greatest amount of atoms.
Explanation:
I need help answer whenever I have time
Answer:
Lithosphere: Volcanos..
Hydrosphere: Rain falls..
biosphere: Plants..
Explanation:
Which reaction would cause an increase in entropy?
Answer:
The other guy is completely wrong.
The answer is B.SO2CI2 (g) > SO2 (g)+CI2(g)
Explanation:
A P E X
Write a short paragraph about how gases are all around you. Provide at least 2 examples
Answer:fart and carbon are all around is
Explanation:
Calculate the given mass in 0.5 mol. Of CH4
Answer:
8 grams
Explanation:
The molar mass of CH4 is about 16 grams per mol. So you get the answer by mutlitplying 0.5 by 16, (cancel out moles by placing 1 on the bottom of the fraction).
Answer:
8 (g)
Explanation:
[tex]m= n * M[/tex]
m= 0.5*(12+1*4)=0.5*16 =8 (g)
What does pollution mainly come from
Answer:
Pollution comes from factories, careless humans, chemicals, non-biodegradable trash.
Explanation:
A gas has a volume of 10.0 L at 20 degree Celsius. At what temperature does the gas have a volume of 20.0 L ?
Answer:
286 K
Explanation:
From the question,
Applying Charles law,
V/T = V'/T'.................... Equation 1
Where V = Initial Volume of gas, T = Initial Temperature of gas in Kelvin, V' = Final Volume of gas, T' = Final Temperature of gas in Kelvin
Make T' the subject of the equation
T' = V'T/V.................. Equation 2
Given: V = 10.0 L, V' = 20.0 L, T = 20°C = (20+273) = 293 K.
Substitute these values into equation 2
T' = (20×293)/10
T' = 586 K
Hence the temperature of the gas is 586 K
HELP PLEASE!
The more bonds an atom can make, the more likely it is to combie with other atoms in different ways.
Which element is most likely able to make the greatest variety of bonds?
a. nitrogen
b. hydrogen
c. oxygen
d.carbon
Answer: a. nitrogen
Explanation:
Nitrogen comprises of five valence electrons in its outermost shell which enables it to form triple, double and single bonds with other atoms. It can share three electrons with other nitrogen atom and form a covalent bond. Moreover, nitrogen can form multiple bonds with itself and with other elements due to its small size and high electronegativity. Nitrogen, carbon, fluorine, and oxygen are the elements with which nitrogen can form bonding.
The pH of a solution can be determined by using a
A. Filter paper
B. Potentiometer
C. Thermometer
D. pH paper
real answers plz not bots
What material would be safest to use as an insulator to cover electrical wires?
A:Rubber
B:Tin
C:Water
D:Aluminum
Answer: Rubber because it is NOT a conductor of electricity
Explanation:
Convert 812.4 kPa into atm
Answer:
Explanation:
There are a series of unit used to measure PRESSURE. They include millimetre mercury (mmHg), atmospheric pressure (atm), kilopascal etc. These units of measurement are interconvertible i.e. can be changed from one unit to another.
Based on this question asking to convert
1 kilopascal = 0.00986923atm
does the mercury not have fixed shape and volume at 20 degree
Answer:
Mercury doesn't have a fixed shape
As the girl leaves her room, she flips the switch to turn off the light. Turning off the light make
A :a closed circuit
B :a series circuit
C :a parallel circuit
D :an open circuit
Answer:
A.
Explanation:
help? please and thank you! very much appreciated
Answer:
Option B is correct
Explanation:
The Formula of Nitrate is NO₃⁻
-TheUnknownScientist
PLEASE HELP PLS PLS PLS
Methane, CH4(g), and oxygen gas, O2(g) react to produce carbon dioxide, CO2(g), and water H2O(g). What volume of methane is required to react with oxygen to produce 32.5 L of carbon dioxide? *
a) 65.0 L
b) 48.8 L
c) 16.3 L
d) 32.5 L
Answer:
D)
Explanation:
CH4 + 2O2 = CO2 + 2H2O
1 (L CO2)= 32.5(L CO2)
1 (CH4) = 32.5 (L CH4)
In the following reaction, in which direction, left or right, will the equilibrium shift if the following changes are made?
2NO (g) + H2 (g) ⇌ N2O (g) + H2O (g) + 36 kJ (heat)
N2 O (g) is added
Equilibrium shifts (LEFT / RIGHT)
H2 (g) is added
Equilibrium shifts (LEFT / RIGHT)
Answer:
Shifts to the left.
Shifts to the right.
Explanation:
Based on Le Châtelier's principle, when a change occurs in a system in equilibrium, the system will try to counteract the change that was made.
In the equilibrium:
2NO (g) + H₂ (g) ⇌ N₂O (g) + H₂O (g) + 36 kJ (heat)
If N₂O is added, the equilibrium shifts to the left trying to decrease the concentration of N₂O added.
If H₂ is added, the equilibrium shifts to the right trying to decrease the concentration of H₂ added
A sealed container is heated from 110K to 175K. The gas begins at a volume of 95L, what is the new volume of the gas upon heating?
Write word equation of sodium reacts with chlorine to get sodium chloride
Answer:
Na+ + Cl-=NaCl
Explanation:
Sodium have +ions while Chlorine have - ions the ions will cancel and it will equal to NaCl
Balance the following chemical equation:
C2H60+02 → CO2 + H2O
Answer: C2h6O + 3O2 → 2CO2 + 3H2O
Explanation:
please help me out with this question! don’t attach any files
Answer:
b
Explanation:
How do i describe endothermic and exothermic changes in matter?
How many grams of carbon dioxide are produced from the combustion of 250.G of ethane, C3H8 in the reaction C3H8 +5O2 - 3CO2 +4H2O
Answer:
750 g of CO₂
Explanation:
The balanced equation for the reaction is given below:
C₃H₈ + 5O₂ —> 3CO₂ + 4H₂O
Next, we shall determine the mass of C₃H₈ that reacted and the mass of CO₂ produced from the balanced equation. This can be obtained as follow:
Molar mass of C₃H₈ = (12×3) + (8×1)
= 36 + 8 = 44 g/mol
Mass of C₃H₈ from the balanced equation = 1 × 44 = 44 g
Molar mass of CO₂ = 12 + (16×2)
= 12 + 32 = 44 g/mol
Mass of CO₂ = 3 × 44 = 132 g
SUMMARY:
From the balanced equation above,
44 g of C₃H₈ reacted to produce 132 g of CO₂.
Finally, we shall determine the mass of CO₂ produced by the reaction of 250 g of C₃H₈. This can be obtained as follow:
From the balanced equation above,
44 g of C₃H₈ reacted to produce 132 g of CO₂.
Therefore, 250 g of C₃H₈ will react to produce = (250 × 132)/44 = 750 g of CO₂.
Thus, 750 g of CO₂ were obtained from the reaction.
The number of grams of carbon dioxide should be 750 grams.
Calculation of the no of grams:Since
The balanced equation for the reaction is
C₃H₈ + 5O₂ —> 3CO₂ + 4H₂O
Now
Molar mass of C₃H₈ = (12×3) + (8×1)
= 36 + 8 = 44 g/mol
Hence, Mass of C₃H₈ from the balanced equation = 1 × 44 = 44 g
Now
Molar mass of CO₂ = 12 + (16×2)
= 12 + 32 = 44 g/mol
Hence, Mass of CO₂ = 3 × 44 = 132 g
Now the no of grams should be
= (250 × 132)/44
= 750 g of CO₂.
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