The method used in this experiment is sometimes called the vapor density method. The ideal gas equation can be rearranged to solve for the density of a vapor . Which type or types of measurement is not needed to calculate the density of a gas?
Answers
Here are the following choices:
A) all of these measurements are needed
B) Temperature
C) Molar Mass
D) Pressure
E) Mass
Related Questions
If the temperature of air increased, how would it affect the rate of condensation of water vapor
Iron has a density of 7.86 g/cm3 (1 cm3=1 mL). Calculate the volume (in dL) of a piece of iron having a mass of 4.01 kg . Note that the density is provided in different units of volume and mass than the desired units of volume (dL) and the given units of mass (kg). You will need to express the density in kg/dL (1 cm3 = 1 mL) before calculating the volume for the piece of iron.
NEED HELP AS SOON AS POSSIBLE!7. How many atoms are present in a 6.00 g sample of silver? a. 1.07 x 10^-1 atoms b. 6.47 x 10^2 atoms c. 3.35 x 10^22 atoms d. 3.61 x 10^24 atoms 8. How many atoms are present in 2.0 x 10^6 mol of carbon? a. 3.3 x 10^-18 atoms b. 4.0 x 10^-17 atoms c. 1.0 x 10^29 atoms d. 1.2 x 10^30 atoms 9. what mass is present in sample of AgNO3 containing 3.14 x 10^19 formula units? a. 5.21 x 10^-5 g b. 8.86 x 10^-3 g c. 1.13 x 10^2 g d. 1.92 x 10^4 g 10. How many molecules are present in 36.6 L of SO2 gas at STP? a. 1.36 x 10^-21 molecules b. 1.63 x 10^0 molecules c. 1.54 x 10^22 molecules d. 9.84 x 10^23 molecules
Write the balanced equation for the reaction given below: C2H6 + O2 --> CO2 + H2O. If 16.4 L of C2H6 reacts with 0.980 mol of O2, how many liters of carbon dioxide gas will be produced? What is the limiting reagent? How many oxygen atoms will be in this sample of carbon dioxide? How many moles of the excess reactant will be left over? How many grams of the excess reactant will be left over?
Answers
Answer:
a saturated hydrocarbon that has more than 35 carbons in its chain
Explanation: Alkanes with a chain length of approximately 35 or more carbon atoms are found in bitumen (asphalt), used (for example) in road surfacing. However, the higher alkanes have little value and are usually split into lower alkanes by cracking.
NH4+
B.
H2O
C.
H2CO3−
D.
H2SO4
Answers
Answer:
The answer is B
Explanation:
Answer:
B. H2O
Explanation:
Well, for one example, we know that water is amphoteric... Examples: H2O can become H3O+ or OH-. HCO3- can become CO3^2- or H2CO3
Answers
Answer:
a. p-o²nc⁶h⁴ch(oh)ch
Explanation:
Final answer:
The alcohol that is dehydrated most easily with conc. H₂SO₄ is p-C1C₆H₄CH(OH)CH₃.
Explanation:
The alcohol that is dehydrated most easily with conc. H²SO⁴ is p-C1C⁶H⁴CH(OH)CH³. This alcohol is tertiary, meaning it has three alkyl groups attached to the carbon atom containing the hydroxyl group. Tertiary alcohols are more easily dehydrated compared to primary and secondary alcohols because the carbon atom attached to the hydroxyl group is more stable due to the presence of the alkyl groups.
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Q < Keq
Q > Keq
Q = Keq
Answers
Answer:
A. Q = Keq
B. Equilibrium quantities of reactants and products
C. Q > Keq
D. System will shift toward reactants
E. Overabundance of reactants
F. System will shift toward products
Here are all the answers :)
Final answer:
To fill in the table about equilibrium, if Q < Keq the reaction will move right (produce more products), if Q > Keq it will move left (produce more reactants), and if Q = Keq the system is at equilibrium with no net change.
Explanation:
To complete the first row in the table about a system at equilibrium, we need to fill in the missing information based on the reaction quotient (Q) and the equilibrium constant (Keq).
For a system at equilibrium, not only is Q = Keq, but also the change in Gibb's free energy (ΔG) is zero. This relationship can be represented as 0 ΔG° + RT ln K at equilibrium.
Answers
The first particles to evaporate from a liquid are those at the surface with the highest kinetic energy. These particles have sufficient energy to overcome the intermolecular forces of the liquid and become a gas.
The first particles to evaporate from a liquid are those at the surface of the liquid that have the highest kinetic energy. Evaporation is a process that occurs when particles at a liquid's surface have sufficient energy to break free of the liquid's intermolecular forces and become a gas, such as when water boils to steam. This is why sometimes we see a liquid seeming to 'disappear' over time, like a puddle drying up in the sun - it's the liquid evaporating.
Particles must have enough energy for the liquid to overcome the forces that are keeping them in the liquid. This energy is more likely to be found in particles at the surface, as they are not surrounded by other particles on all sides and therefore experience less resistance to their motion.
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Answers
The sulfur (S) element of the periodic table is represented by the electron configuration .
The arrangement of electrons within the energy levels or orbitals of an atom is represented by electronic configuration. Sulfur has 16 electrons in its structure. The numbers in the electronic configuration represent the principal energy levels—1, 2, and 3—as well as the orbital—s or p—that the electrons are in.
Detail analysis of electron arrangement:
- The first energy level (n = 1) represents the presence of two electrons in the symbol
1s orbital.
- The symbol
indicates the presence of two electrons in the second energy level (n = 2) and the 2s orbital.
- The
symbol indicates the presence of 6 electrons in the second energy level (n = 2) and 2p orbitals.
- The third energy level, or
, refers to the presence of two electrons in the 3s orbital (n = 3).
stands for the third energy level (n = 3), and indicates that two of the three p orbitals hold two electrons.
When these electronic configurations are combined, the electron configuration of sulfur (S) is represented by .
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Count the number of electrons = 2+2+6+2+2= 14
So, it must be SILICON.