How does the equilibrium change to counter the removal of A in this reaction? A + B ⇌ AB
Answers
To counter the removal of A the equilibrium change by shifting toward the left
explanation
If the reaction is at equilibrium and we alter the condition a new equilibrium state is created
The removal of A led to the shift of equilibrium toward the left since it led to less molecules in reactant side which favor the backward reaction.( equilibrium shift to the left)
For Plato users :
The equilibrium SHIFTS LEFT. Simultaneously, there’s an increase in the REVERSE reaction.
Related Questions
Describe how chemistry is a part of your morning routine?
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What is the product when magnesium reacts with nitrogen? Mg(s) + N2(g) →
What does a mid ocean ridge record?
Answers
Answer: Carbon-14 isotope is used to date ancient artifacts such as fossils.
Explanation:
To determine the age of ancient artifacts such as fossils, we use radiocarbon dating process.
In this process, a naturally occurring radioisotope of carbon which is Carbon-14 is used. This isotope is generally used because this isotope gets constantly created in the atmosphere with the interaction of cosmic rays with the nitrogen present in atmosphere.
Hence, an isotope of carbon which is Carbon-14 is used to determine the age of ancient artifacts such as fossils.
this dating is called CARBON 14 DATING...because Carbon 14 is the isotope used to date fossils...
Also Potassium 40 is also used in some cases....
Answers
C₂H8 is Dimethocain-M. In C₂H₈ two atoms of carbon are present. Combustion of 6.40 mole C₂H₈ produced 12.8 moles of CO₂.
What is combustion ?
Combustion reaction refers to burning of compound in presence of oxygen. The reaction is accompanied by heat and light. One mole of burned carbon produced one mole of CO₂ gas.
Combustion is a chemical reaction between substances ,usually including oxygen and usually accomplished by the generation of heat and light.
Here we see that in C₂H₈ there are there are two carbons present then 2 moles of CO₂ gas is produced i.e. 2 × 6.40 = 12.8 moles.
Hence, 12.8 moles of CO₂ produced in combustion of 6.40 mole C₂H₈.
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b. Calculate the molarity of the solution.
c. Calculate the mole fraction of the salt in the solution.
Answers
The molarity of the solution is 5.018 mol/L and molality of the solution 5.9846 mol/kg.
Assume 100 g of solution the salt concentration- 35 % and water will be 65 %.
So,
mass of salt = 35 g
mass of water = 65 g
Number of moles,
So,
moles of salt = 35 g / 90 (g/mol) = 0.389 mole
moles of water = 65 / 18 = 3.6111 mole
Volume of solution,
volume = 100 g / ( 1.29 g/ml)
volume of solution = 77.52 ml = 0.07752 L
a)
molality = 0.389 mol / 0.065 kg
molality = 5.9846 mol/kg
b)
molarity = moles of salt / volume of solution (L)
molarity = 0.389 mol / 0.07752 L
molarity = 5.018 mol/L
c)
mole fraction of salt = moles of salt / total moles
mole fraction of salt = 0.389 mol / ( 0.389 + 3.6111)
mole fraction of salt = 0.09725
To know more about Molarity,
Answer:
a) 5.9846 mol/kg
b) 5.018 mol/L
c)0.09725
Explanation:
consider 100 g of solution
now
since the salt is 35 % , water will be 65 %
now
mass of salt = 35 g
mass of water = 65 g
we know that
moles = mass / molar mass
so
moles of salt = 35 g / 90 (g/mol) = 0.389 mol
moles of water = 65 / 18 = 3.6111 mol
now
volume of solution = mass of solution / density of solution
volume of solution = 100 g / ( 1.29 g/ml)
volume of solution = 77.52 ml
volume of solution = 0.07752 L
a)molality = moles of salt / mass of water (kg)
molality = 0.389 mol / 0.065 kg
molality = 5.9846 mol/kg
b)
molarity = moles of salt / volume of solution (L)
molarity = 0.389 mol / 0.07752 L
molarity = 5.018 mol/L
c)
now
total moles in the solution = moles of salt + moles of water
total moles in the solution = 0.389 + 3.6111
total moles in the solution = 4 mol
now
mole fraction of salt = moles of salt / total moles
mole fraction of salt = 0.389 mol / 4 mol
mole fraction of salt = 0.09725
b. fulcrum
c. mechanical advantage
d. resistance force
Answers
Answer:
Mechanical Advantage
Explanation:
(B)Geiger counter
(C)mass spectrograph
(D)microbalance
(E)electron microscope
Answers
Mass spectrograph is an instrument which is used to determine the relative masses of atoms.
What is an atom?
An atom is defined as the smallest unit of matter which forms an element. Every form of matter whether solid,liquid , gas consists of atoms . Each atom has a nucleus which is composed of protons and neutrons and shells in which the electrons revolve.
The protons are positively charged and neutrons are neutral and hence the nucleus is positively charged. The electrons which revolve around the nucleus are negatively charged and hence the atom as a whole is neutral and stable due to presence of oppositely charged particles.
Atoms of the same element are similar as they have number of sub- atomic particles which on combination do not alter the chemical properties of the substances.
Learn more about atom,here:
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