umerical 1.2 2.5 moles Step 4 Calcula number of moles 11 M 8,00 g 2 g.mol = 4 moles Step 5 Write down the 2 moles H, reacts with 1 mole O moles in the reaction Step 6 Determine the mass of the product(s) Step 7 Conclusion 4 moles H, reacts with 2 moles O, Mass of O, consumed: m=nxM = 2,00 mol x 32 g.mol-1 = 64 g 64 g of oxygen is consumed. therefore: Theor The calcula theoretical we find th escape or can calcul Percen 4 3 1 Activity 1 Perform stoichiometric calculations In the following chemical reaction: 2H2(g) + O2(g) → 2H₂O(g) 1.1 How many moles of H₂O will be produced from 6 moles of O₂? 1.2 How many moles of H₂ will react with 40 g of O₂? 1.3 How many grams of H₂O will be produced by 18 g of H₂? 2 Zinc metal is used to displace silver from a silver nitrate solution in accordance with the following equation: Zn(s) + 2AgNO3(aq) → Zn(NO₂)2(aq) + 2Ag(s) What mass of zinc should be used to displace 60 g of silver from excess silver nitrate solution? -> 80 g of magnesium react with oxygen in accordance with the reaction equation: 2Mg + O2 → 2MgO. What mass of magnesium oxide is formed? If 33 g of hydrogen was produced when some aluminium was dissolved in hydrochloric acid, what mass of aluminium was dissolved? The balanced equation is: 2A1(s)+6HCl(aq) → 2AICI,(aq) + 3H2(g) What is the mass of two moles of potassium dichromate (K,Cr,O,)? Calculate the number of moles represented by 9,85 x 10-3 g of gold (Aul Worl The th carbo the p Ans 1 2 3 Theo Actu Ac 18 g3 133 g 5 g 6 Hule 6 Chemical change (Part 2)
umerical 1.2 2.5 moles Step 4 Calcula number of moles 11 M 8,00 g 2 g.mol = 4 moles Step 5 Write down the 2 moles H, reacts with 1 mole O moles in the reaction Step 6 Determine the mass of the product(s) Step 7 Conclusion 4 moles H, reacts with 2 moles O, Mass of O, consumed: m=nxM = 2,00 mol x 32 g.mol-1 = 64 g 64 g of oxygen is consumed. therefore: Theor The calcula theoretical we find th escape or can calcul Percen 4 3 1 Activity 1 Perform stoichiometric calculations In the following chemical reaction: 2H2(g) + O2(g) → 2H₂O(g) 1.1 How many moles of H₂O will be produced from 6 moles of O₂? 1.2 How many moles of H₂ will react with 40 g of O₂? 1.3 How many grams of H₂O will be produced by 18 g of H₂? 2 Zinc metal is used to displace silver from a silver nitrate solution in accordance with the following equation: Zn(s) + 2AgNO3(aq) → Zn(NO₂)2(aq) + 2Ag(s) What mass of zinc should be used to displace 60 g of silver from excess silver nitrate solution? -> 80 g of magnesium react with oxygen in accordance with the reaction equation: 2Mg + O2 → 2MgO. What mass of magnesium oxide is formed? If 33 g of hydrogen was produced when some aluminium was dissolved in hydrochloric acid, what mass of aluminium was dissolved? The balanced equation is: 2A1(s)+6HCl(aq) → 2AICI,(aq) + 3H2(g) What is the mass of two moles of potassium dichromate (K,Cr,O,)? Calculate the number of moles represented by 9,85 x 10-3 g of gold (Aul Worl The th carbo the p Ans 1 2 3 Theo Actu Ac 18 g3 133 g 5 g 6 Hule 6 Chemical change (Part 2)
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Chapter1: Units, Trigonometry. And Vectors
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Transcribed Image Text:umerical
1.2 2.5 moles
Step 4 Calcula
number of
moles
11 M
8,00 g
2 g.mol
= 4 moles
Step 5 Write down the 2 moles H, reacts with 1 mole O
moles in the
reaction
Step 6 Determine the
mass of the
product(s)
Step 7 Conclusion
4 moles H, reacts with 2 moles O,
Mass of O, consumed:
m=nxM
= 2,00 mol x 32 g.mol-1
= 64 g
64 g of oxygen is consumed.
therefore:
Theor
The calcula
theoretical
we find th
escape or
can calcul
Percen
4
3
1
Activity 1
Perform stoichiometric calculations
In the following chemical reaction: 2H2(g) + O2(g) → 2H₂O(g)
1.1 How many moles of H₂O will be produced from 6 moles of O₂?
1.2 How many moles of H₂ will react with 40 g of O₂?
1.3 How many grams of H₂O will be produced by 18 g of H₂?
2
Zinc metal is used to displace silver from a silver nitrate solution in
accordance with the following equation:
Zn(s) + 2AgNO3(aq) → Zn(NO₂)2(aq) + 2Ag(s)
What mass of zinc should be used to displace 60 g of silver from excess
silver nitrate solution?
->
80 g of magnesium react with oxygen in accordance with the reaction
equation: 2Mg + O2 → 2MgO. What mass of magnesium oxide is formed?
If 33 g of hydrogen was produced when some aluminium was dissolved
in hydrochloric acid, what mass of aluminium was dissolved? The
balanced equation is:
2A1(s)+6HCl(aq) → 2AICI,(aq) + 3H2(g)
What is the mass of two moles of potassium dichromate (K,Cr,O,)?
Calculate the number of moles represented by 9,85 x 10-3 g of gold (Aul
Worl
The th
carbo
the p
Ans
1
2
3
Theo
Actu
Ac
18 g3 133 g
5
g
6
Hule 6 Chemical change (Part 2)
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