Answer:
Molarity of potassium chloride is 0.100M
Explanation:
Molarity is defined as moles of solute per liter of solvent.
Moles of solute (Potassium chloride; MW: 74.55g/mol):
0.182g × (1mol / 74.55g) = <em>2.44x10⁻³mol KCl</em>
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Liters of water using density are:
26.0g Water × ( 1mL / 1.071g) × (1L / 1000mL) = <em>0.0243L</em>
<em />
Thus, molarity of KCl in the sample is:
<em>2.44x10⁻³mol KCl / 0.0243L = </em><em>0.100M</em>
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I hope it helps!
Oxidation reaction
is a type of reaction wherein there is a
loss of electrons. An oxidation reaction may also be a reducing agent. Example
is the reaction Zn + 2H+ = Zn2+ + H2. When you separate them by their half cell
reaction, you have 2H+ 1e- = H2. H here is the reducing agent and has lost 1
electron in the process.
Answer:
27.22 dm³
Explanation:
Given parameters:
number of moles = 1 mole
temperature= 50°C, in K gives 50+ 273 = 323K
Pressure= 98.6kpa in ATM, gives 0.973 ATM
Solution:
Since the unknown is the volume of gas, applying the ideal gas law will be appropriate in solving this problem.
The ideal gas law is mathematically expressed as,
Pv=nRT
where P is the pressure of the gas
V is the volume
n is the number of moles
R is the gas constant
T is the temperature
Input the parameters and solve for V,
0.973 x V = 1 x 0.082 x 323
V= 27.22 dm³
Answer:
Hiya there!
Explanation:
Both fission and fusion are nuclear reactions that produce energy, but the applications are not the same. Fission is the splitting of a heavy, unstable nucleus into two lighter nuclei, and fusion is the process where two light nuclei combine together releasing vast amounts of energy.
For example, uranium can fission to yield strontium and krypton. Fusion joins atomic nuclei together. The element formed has more neutrons or more protons than that of the starting material. For example, hydrogen and hydrogen can fuse to form helium.
<em><u>Hope this helped!</u></em> :D
Credit sourced from "nuclear.duke-energy.com, thoughtco.com"
Answer: 39.948 grams
Explanation:
The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles Argon, or 39.948 grams
