Answer:
34.81 ×10²³ atoms
Explanation:
Given data:
Mass of water = 52.0 g
Number of atoms of hydrogen = ?
Solution:
Number of moles of water:
Number of moles = mass/molar mass
Number of moles = 52.0 g/ 18 g/mol
Number of moles = 2.89 mol
1 mole of water contain 2 mole of hydrogen.
2.89 mole of water contain 2.89× 2= 5.78 moles of hydrogen.
Number of atoms of hydrogen:
1 mole = 6.022×10²³ atoms
5.78 mol × 6.022×10²³ atoms / 1mol
34.81 ×10²³ atoms
<h3>
flammable liquids will catch on fire and burn easily at normal working temperatures. Combustible liquids have the ability to burn at temperatures that are usually above working temperatures.</h3>
<em>Hope this helped! :)</em>
Answer:
Na+Cl2-----NaCl
Explanation:
it's the chemical formula of common salt.
Mass of Hydrogen gas produced : 3.202 g
<h3>Further explanation</h3>
A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products.
Hydrogen gas can be obtained by reacting metals with acids
Reaction of Aluminium(Al) and Hydrochloric acid(HCl)
2Al + 6HCl → 2AlCl₃ + 3H₂
mass of Aluminium : 28.56 g, so mol Al :
From equation, mol ratio of Al : H₂ = 2 : 3, so mol H₂ :
Mass of Hydrogen gas produced :
The number of neon moles that occupy a volume of 14.3 l at STP is calculated as follows
At STP 1 mole = 22.4 liters
what about 14.3 liters
by cross multiplication
= (1 mole x 14.3 l)/22.4 l =0.638 moles of neon