Answer:
1.16 mol
Explanation:
Given data:
Mass in gram Mg(OH)₂ = 68 g
Number of moles of Mg(OH)₂ = ?
Solution:
Formula:
Number of moles = mass/molar mass
Molar mass of Mg(OH)₂ = 58.32 g/mol
By putting values,
Number of moles = 68 g/ 58.32 g/mol
Number of moles = 1.16 mol
Answer:
The empirical formula simply states the ratios of the elements that make up the molecule, while molecular formulas specify the amounts of each element exactly, not just giving the ratio. Let's take ethane (C2H6) as an example.
<h2>ANSWER:</h2><h2>_____________________________________</h2><h3>
Why is there no reaction between silver and copper (II) nitrate?</h3>
For the reaction to occur, it is necessary that the metal which replaces the metal from the compound LIES above that metal in the ELECTROCHEMICAL SERIES(ECS). The metal in the compound here is Copper (II) nitrate where as the metal trying to displace is silver. Silver lies below the copper in a ECS, that means Copper is more reactive than silver. The reaction is not possible because more reactive metal displaces less reactive metal from its compound, and silver is LESS reactive than copper so it cant displace the copper from copper nitrate.
<h2>_____________________________________</h2><h2>THE ELECTROCHEMICAL SERIES IS ATTACHED BELOW</h2>
The factor that determine how water cycles on earth is the forms that water is found in[solid, liquid and gas].