Presentation is loading. Please wait.

Presentation is loading. Please wait.

Entry Task- March 1 st Friday Entry Task Question: Write it down 2H 2 + O 2  2 H 2 O If there are 4.5 moles of Hydrogen gas, how many grams of water.

Similar presentations


Presentation on theme: "Entry Task- March 1 st Friday Entry Task Question: Write it down 2H 2 + O 2  2 H 2 O If there are 4.5 moles of Hydrogen gas, how many grams of water."— Presentation transcript:

1

2 Entry Task- March 1 st Friday Entry Task Question: Write it down 2H 2 + O 2  2 H 2 O If there are 4.5 moles of Hydrogen gas, how many grams of water will it create?

3 Agenda: Discuss Stoichiometry ws #1 MORE MORE Practice with stoich. HW: Stoichiometry ws 2

4

5 1. Balance the Rxn: Potassium bromide reacts with magnesium metal creates potassium metal magnesium bromide _____KBr + _____Mg  _____MgBr 2 + _____ K 2 2 a. How many moles of magnesium were used to create 8.23 moles of magnesium bromide? = moles Mg 8.23 moles of MgBr Units match 1 mol MgBr 2 1 mol Mg

6 b. How many moles of potassium bromide are needed to react with moles of magnesium? = moles KBr moles of Mg Units match 1 mol Mg 2 mol KBr _____KBr + _____Mg  _____MgBr 2 + _____ K 2 2

7 c. How many moles of magnesium bromide were produced if 65.5g of magnesium were used? = moles MgBr g Mg 2.69 Units match 1 mol Mg g Mg1 mol Mg 1 mol MgBr X 1 = X 1 = _____KBr + _____Mg  _____MgBr 2 + _____ K 2 2

8 d. How many moles of potassium bromide were used if 125g of magnesium bromide were produced? = moles KBr 125 g MgBr Units match 1 mol MgBr g MgBr 2 1 mol MgBr 2 2 mol KBr 125 X 2 = X 1 = _____KBr + _____Mg  _____MgBr 2 + _____ K 2 2

9 2. Tin IV oxide reacts with hydrogen monofluoride to create Tin IV fluoride and water a. How many moles of Tin IV oxide were used to create moles of water? = moles SnO moles of H 2 O Units match 2 mol H 2 O 1 mol SnO 2 _____SnO 2 + _____HF  _____SnF 4 + _____H 2 O 42

10 b. How many moles of hydrogen monofluoride were used to create 8.55 moles of Tin IV fluoride? = moles HF 8.55 moles of SnF Units match 1 mol SnF 4 4 mol HF _____SnO 2 + _____HF  _____SnF 4 + _____H 2 O 42

11 c. How many moles of Tin IV fluoride were produced if 15.0 g of hydrogen monofluoride were used? _____SnO 2 + _____HF  _____SnF 4 + _____H 2 O 42 = moles SnF g HF Units match 1 mol HF g HF4 mol HF 1 mol SnF X 1 = X 4 = 80

12 d. How many moles of Tin IV oxide were used if 50.0 g of Tin IV fluoride were produced? _____SnO 2 + _____HF  _____SnF 4 + _____H 2 O 42 = moles SnO g SnF Units match 1 mol SnF g SnF 4 1 mol SnF 4 1 mol SnO X 1 = X 1 = 194.7

13 Cobalt metal reacts with lead II phosphate to create lead metal to cobalt II phosphate a. How many moles of Lead II phosphate were used to create 7.50 moles of lead metal? = moles Pb 3 (PO 4 ) moles of Pb 2.5 Units match 3 mol Pb 1 mol Pb 3 (PO 4 ) 2 _____Co + _____Pb 3 (PO 4 ) 2  _____Pb+ _____Co 3 (PO 4 ) 2 33

14 Cobalt metal reacts with lead II phosphate to create lead metal to cobalt II phosphate b. How many moles of Cobalt metal were used to create 0.67 moles of Cobalt II phosphate? = moles Co 0.67moles of Co 3 (PO 4 ) Units match 1 mol Co 3 (PO 4 ) 2 3 mol Co _____Co + _____Pb 3 (PO 4 ) 2  _____Pb+ _____Co 3 (PO 4 ) 2 33

15 Cobalt metal reacts with lead II phosphate to create lead metal to cobalt II phosphate c. How many moles of Lead were produced if 45.8g of Cobalt were used? = moles Pb 45.8 g Co Units match 1 mol Co g Co3 mol Co 3 mol Pb 45.8 X 3 = X 3 = _____Co + _____Pb 3 (PO 4 ) 2  _____Pb+ _____Co 3 (PO 4 ) 2 33

16 Cobalt metal reacts with lead II phosphate to create lead metal to cobalt II phosphate d. How many moles of Lead II phosphate were used if 759 g of Cobalt II phosphate were produced? = moles Pb 3 (PO 4 ) g Co 3 (PO 4 ) Units match 1 mole Co 3 (PO 4 ) g Co 3 (PO 4 ) 2 1 mol Co 3 (PO 4 ) 2 1 mol Pb 3 (PO 4 ) X 1 = X 1 = _____Co + _____Pb 3 (PO 4 ) 2  _____Pb+ _____Co 3 (PO 4 ) 2 33

17 Nickel metal reacts with aluminum sulfate creates aluminum metal and nickel IV sulfate a. How many moles of nickel were used to create 42.5 moles of nickel IV sulfate? = moles Ni 42.5 moles of Ni(SO 4 ) Units match 3 mol Ni(SO 4 ) 2 3 mol Ni _____Ni + _____Al 2 (SO 4 ) 3  _____ Al+ _____ Ni(SO 4 )

18 Nickel metal reacts with aluminum sulfate creates aluminum metal and nickel IV sulfate b. How many moles of Aluminum sulfate were used to create moles of aluminum metal? = moles Al 2 (SO 4 ) moles of Al Units match 4 mol Al 2 mol Al 2 (SO 4 ) 3 _____Ni + _____Al 2 (SO 4 ) 3  _____ Al+ _____ Ni(SO 4 )

19 Nickel metal reacts with aluminum sulfate creates aluminum metal and nickel IV sulfate c. How many moles of Nickel IV sulfate were produced if 15.0 g of Aluminum sulfate were used? _____Ni + _____Al 2 (SO 4 ) 3  _____ Al+ _____ Ni(SO 4 ) = moles Ni(SO 4 ) g Al 2 (SO 4 ) Units match 1 mole Al 2 (SO 4 ) g Al 2 (SO 4 ) 3 2 mol Al 2 (SO 4 ) 3 3 mol Ni(SO 4 ) X 3 = X 2 =

20 Nickel metal reacts with aluminum sulfate creates aluminum metal and nickel IV sulfate d. How many moles of nickel were used if 95.0 g of Aluminum were produced? _____Ni + _____Al 2 (SO 4 ) 3  _____ Al+ _____ Ni(SO 4 ) = moles Ni 95.0 g Al 2.64 Units match 1 mole Al g Al4 mol Al 3 mol Ni 95.0 X 3 = X 4 =

21


Download ppt "Entry Task- March 1 st Friday Entry Task Question: Write it down 2H 2 + O 2  2 H 2 O If there are 4.5 moles of Hydrogen gas, how many grams of water."

Similar presentations


Ads by Google