Answer:
3.2 g O₂
Explanation:
To find the mass of O₂, you need to (1) convert grams H₂O to moles H₂O (via molar mass), then (2) convert moles H₂O to moles O₂ (via mole-to-mole ratio from reaction coefficients), and then (3) convert moles O₂ to grams O₂ (via molar mass). It is important to arrange the ratios/conversions in a way that allows for the cancellation of units (the desired unit should be in the numerator). The final answer should have 2 sig figs to reflect the sig figs of the given value (3.6 g).
Molar Mass (H₂O): 2(1.008 g/mol) + 15.998 g/mol
Molar Mass (H₂O): 18.014 g/mol
2 H₂O -----> 2 H₂ + 1 O₂
Molar Mass (O₂): 2(15.998 g/mol)
Molar Mass (O₂): 31.996 g/mol
3.6 g H₂O 1 mole 1 mole O₂ 31.996 g
---------------- x --------------- x --------------------- x --------------- = 3.2 g O₂
18.014 g 2 moles H₂O 1 mole
It is imperative to test various trials of a test to guarantee that your outcomes are accurate,reliable, and reproducible. On the off chance that you had mentioned a blunder for your objective facts in the primary trial,they ought to be mentioned clear by your objective facts in your second trial.
Answer:
An <u>Orbital </u>is the probability distribution of an electron in an atom or molecule.
Explanation:
As we know atom consists of sub-particles commonly known as protons, neutrons and electrons. The outer space around the nucleus where the probability of finding electrons is maximum is known as orbital. As the electrons are not precisely ordered around the nucleus hence it is not easy to tell the exact position of an electron.
Hence, four quantum numbers are used to locate the position of electrons around the nucleus.
i) Principle Quantum Number:
This number explains the main energy level which tend to increase in energy as the distance of electrons from nucleus are increased. Principle Quantum Numbers are integer number ranging from one to infinity. Hence, increase in this quantum number results in increase of the size of orbital.
ii) Azimuthal Quantum Number:
This Quantum Number explains the direction of particular orbital in 3-dimensional space. Also it is responsible for the shape of an orbital.
iii) Magnetic Quantum Number:
This Quantum Number also tells the direction of orbital in 3D space with respect to x, y and z axis.
iv) Spin Quantum Number:
This Quantum Number tells about the spin direction of an electron about its axis which may be clockwise or anticlockwise.
Since there aren't grams and just moles, the theoretical yield is one whole mole. If the molar mass is <span>142.04 g/mol, that is your answer. Hope I helped!</span>
Answer:
The answer to your question is the number 4. 1.53175 L
Explanation:
Data
Volume 1 = V1 = 557 ml
Concentration 1 = C1 = 11 M
Volume 2 = V2 = ?
Concentration 2 = C2 = 4 M
Formula
Volume 1 x Concentration 1 = Volume 2 x Concentration 2
or V1 x C1 = V2 x C2
Solve for V2 V2 = V1 x C1 / C2
-Substitution
V2 = (557)(11) / 4
-Simplification
V2 = 6127 / 4
-Result
V2 = 1531.75 ml or 1.53175 L
Conclusion
557 ml of 11 M must be diluted to 1.53175 L