Liquids and solids are left out of the equilibrium constant expression because their concentrations remain constant during reactions. What is the molarity concentration of liquid water at 25.0 LaTeX: ^\circ ∘C given that its density is 0.997 g/mL at that temperature? a.23.5 M
b.0.997 M
c.0.180 M
d.0.156 M
e.55.3 M
Answers
Answer:
55.3 M
Explanation:
Given temperature = 25°C
Density = 0.997 g/mL
Based on density the mass of water per L = 997 grams
The molar mass of water = 18
The moles of water =
The molarity is defined as the moles of water per litre.
The moles = 55.3
Volume = 1 L
So molarity = 55.3 /1 = 55.3 M
Related Questions
When looking up at the clouds, you can usually make out different shapes and figures with _____. cumulus clouds stratus clouds cirrus clouds altostratus clouds Desert climates can have very hot days and very cold nights. This is because _____. there is usually cloud coverage there is usually a clear sky there is usually precipitation there is usually hot or cold wind
Which air pollutant contributes to asthma?Emissions Particulate matter Contaminated groundwater Carbon monoxide
What is the total number of valence electrons in an atom of germanium in the ground state?(1) 8 (3) 14 (2) 2 (4) 4
NO, because dental varnish interferes with the bonding and setting reaction of composite resins and glass ionomer restorations the use of varnish is contraindicated with these materials.
Answers
Answer : The volume of gas formed at STP is 7.86 liters.
Explanation :
The balanced chemical reaction will be:
First we have to calculate the moles of .
Molar mass of Al = 27 g/mole
Now we have to calculate the moles of gas.
From the reaction we conclude that,
As, 2 mole of react to give 3 mole of
So, 0.234 moles of react to give
moles of
Now we have to calculate the volume of gas formed at STP.
As, 1 mole of gas contains 22.4 L volume of
gas
So, 0.351 mole of gas contains
volume of
gas
Therefore, the volume of gas formed at STP is 7.86 liters.
Answers
Answer:
ions and polar molecules
Answers
Answer:
0
Explanation:
The number of unpaired electrons in is 0
Answer:
4 unpaired electrons
Explanation:
becausd it have 4 unpaired electros it is paramagnetic
CuSO4 + 2NaOH mc009-2.jpg Cu(OH)2 + Na2SO4
2NaOH + H2CO3 mc009-3.jpg Na2CO3 + 2NaOH
Pb(NO3)2 + Na2SO4 mc009-4.jpg 2NaNO3 + PbSO4
Answers
Answer:
The correct option is: Fe₂O₃ + 3CO → 2Fe + 3CO₂
Explanation:
An oxidation-reduction reaction, also known as the redox reaction, is a chemical reaction in which there is simultaneous transfer of electrons from one species to another.
The species that gains electrons gets reduced. Whereas, species that loses electrons gets oxidized.
Among the given options, only reaction 1 is a redox reaction:
Fe₂O₃ + 3CO → 2Fe + 3CO₂
Reason- In this reaction, iron (Fe) gains electrons and gets reduced from +3 oxidation state in Fe₂O₃ to 0 oxidation state in Fe. Whereas, carbon (C) loses electrons and gets oxidized from +2 oxidation state in CO to +4 oxidation state in CO₂.
Since both the oxidation and reduction reactions are occurring simultaneously.
Therefore, it is an redox reaction.
(2) iron(III) sulfate (4) iron(III) sulfide
Answers
The IUPAC name for the compound FeS is "iron(II) sulfide." Therefore, option 3 is correct.
The IUPAC (International Union of Pure and Applied Chemistry) name is a systematic way of naming chemical compounds.
The compound FeS consists of iron (Fe) and sulfur (S) atoms. In FeS, iron has a +2 oxidation state, and sulfur has a -2 oxidation state.
According to the IUPAC nomenclature rules for naming inorganic compounds, the cation (iron) is named first, followed by the anion (sulfide).
To indicate the oxidation state of iron, the Roman numeral II is used in parentheses after the name "iron." The resulting name is "iron(II) sulfide."
To learn more about IUPAC, follow the link:
#SPJ6
B. Electron
C. Proton
D. Quark
Answers
Answer: electrons
Explanation:
because it is