Answer: Amount of sodium chloride produced is 25.43 grams.
Explanation:
To calculate the moles:
Given: Mass of sodium = 10 g
Molar mass of sodium = 23g/mol
The balanced equation is:
By Stoichiometry of the reaction,
2 moles of sodium produces 2 moles of sodium chloride
So, 0.4347 moles of sodium will produce = of sodium chloride.
Molar mass of sodium chloride = 58.5 g/mol
Putting values in equation 1, we get:
Hence, amount of sodium chloride produced is 25.43 grams.
Answer:
c
Explanation:
C is the answer for increasing Atomic number
Answer:
The answer to your question is: = 2.52 x 10²¹ molecules
Explanation:
mass of fuel = 13.56 - 13.53 = 0.04 g of fuel
mass of oxygen = ?
mass of water = 0.054 g
mass of carbon dioxide = 0.1198 g
To solve this problem just remember the Lavoisier law of conservation of mass that says: Mass is neither created nor destroyed in chemical reactions,
Reaction:
Fuel + Oxygen ⇒ Water + Carbon dioxide
0.04 + mass O2 ⇒ 0.054 + 0.1198
mass O2 = 0.054 + 0.1198 - 0.04
mass O2 = 0.1338 g
MW O2 = 32
1 mol of O2 -------------------- 32 g
x ------------------- 0.1338g
x = 0.1338(1) / 32 = 0.0042 moles
1 mol ----------------- 6,023 x 10 ²³ molecules
0.0042 moles ----- x
x = 0.0042 (6,023 x 10 ²³ ) / 1 = 2.52 x 10²¹ molecules
When products form in an exergonic reaction, the <span>energy required to break bonds is less than the energy released from new bonds. This is usually given off as light. I hope this is the answer you are looking for. Looking forward to help you again. Have a great day ahead!</span>
Answer:
[Ar]3d^84s^2
Explanation:
From the question given, we are asked to write the condensed form of electronic configuration of nickel, Ni.
To do this, we simply write the symbol of the noble gas element before Ni in a squared bracket followed by the remaining electrons to make up the atomic number of Ni.
This is illustrated below:
The atomic number of Ni is 28.
The noble gas before Ni is Argon, Ar.
Therefore, the condensed electronic configuration of Ni is written as:
Ni(28) => [Ar]3d^84s^2