Answer:1.34
Explanation:
It’s the boiling point we’re it starts to boil
The answer is actually (A.) Trans-radiation
Answer:
The answer to your question is Molarity = 0.238
Explanation:
Data
Molarity = ?
number of moles = 0.285
volume = 1.2 L
Molarity is a unit of concentration that relates the moles of a substance by the volume in liters.
Formula
Molarity = moles / volume
Substitution
Molarity = 0.285 / 1.2
Simplification and result
Molarity = 0.238
C and D are correct. This is the process of replication, and option E refers to repetition.
Answer:
The balanced equation is:
2 HNO3 + Mg ---> Mg(NO3)2 + H2
From the equation, we can see that we need twice the moles of HNO3 than the moles of Mg
Moles of Mg:
Molar mass of Mg = 24 g/mol
Moles = Given mass / Molar Mass
Moles of Mg = 4.47 / 24 = 0.18 moles (approx)
Hence, 2(moles of Mg) = 0.36 moles of HNO3 will be consumed
Number of moles of HNO3 after the reaction is finished is the number of unreacted moles of HNO3
Unreacted moles of HNO3 = Total Moles - Moles consumed
Unreacted moles of HNO3 = 0.64 moles (approx)
Since we approximated the value of moles of Mg, the value of remaining moles of HNO3 will also be approximate
From the given options, we can see that 0.632 moles is the closest value to our answer
Therefore, 0.632 moles will remain after the reaction
