Answer:
3.451 mL.
Explanation:
- It is a dilution process.
- We have the rule states that the no. of millimoles before dilution is equal to the no. of millimoles after dilution.
<em>(MV) before dilution = (MV) after dilution</em>
M before dilution = 5.0 M.
V before dilution = ??? mL.
M after dilution = 0.17 M.
V after dilution = 101.5 mL.
∴ The volume before dilution = (MV) after dilution / M before dilution = (0.17 M)(101.5 mL) / (5.0 M) = 3.451 mL.
Answer:
The formula of the gas produced is
, and the balanced equation is :
Explanation:
The chemical reaction between lithium nitride and water gives lithium hydroxide and ammonia gas. The chemical equation of this reaction will be given as:
And when sodium phosphide reacts with water is gives an aqueous solution of sodium hydroxide and hydrogen phosphide gas also called phosphine gas.
The chemical equation of this reaction will be given as:
The formula of the gas produced is, and the balanced equation is :
Answer:
513.975g
Explanation:
I'm assuming that the question has Aluminium and Chlorine as the question is not clear.
1. Balance the equation
2 Al + 3 Cl2 → 2AlCl3
2. Use the mole = mass/mr equation and molar ratio to find the mass of AlCl3
133.5 x 3.85 = 513.975g
Answer: It includes both a physical and chemical change
Explanation: Because the gas is turning into fire which is physical and the gas is giving out heat which is chemical
