Mass= number of mole *Molar mass
mass =2.92 mol*87.62 g/mol≈256 g
The answer to this is 22, confirmed by gradpoint
Answer:
120g
Explanation:
Step 1:
We'll begin by writing the balanced equation for the reaction.
Sn + 2HF —> SnF2 + H2
Step 2:
Determination of the number of mole HF needed to react with 3 moles of Sn.
From the balanced equation above,
1 mole of Sn and reacted with 2 moles of HF.
Therefore, 3 moles Sn will react with = 3 x 2 = 6 moles of HF.
Step 3:
Conversion of 6 moles of HF to grams.
Number of mole HF = 6 moles
Molar Mass of HF = 1 + 19 = 20g/mol
Mass of HF =..?
Mass = number of mole x molar Mass
Mass of HF = 6 x 20
Mass of HF = 120g
Therefore, 120g of HF is needed to react with 3 moles of Sn.
<span>Homogeneous - , kool aid, tea, coffee, soda, honey
Heterogeneous - copper sulfate, chicken soup, cottage cheese</span>
Answer: Point nine six grams per mole which are often just written G / mo L and that's the molar mass or molecular weight for al2o3 aluminum oxide.
Explanation: