CHEM LEC an der Far Eastern University | Karteikarten & Zusammenfassungen

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TESTE DEIN WISSEN

Lithium and nitrogen react to produce lithium nitride:

6Li (s) + N2 (g) → 2Li3N (s)

How many moles of N2 are needed to react with 0.550 mol of lithium?

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TESTE DEIN WISSEN

0.0917 

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TESTE DEIN WISSEN

Real gases behave most ideally at: 


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TESTE DEIN WISSEN

high temperature and low pressure. 


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TESTE DEIN WISSEN

What is the empirical formula for a compound containing 68.3% lead, 10.6% sulfur and the remainder oxygen? 


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TESTE DEIN WISSEN

PbSO4 


Lösung ausblenden
TESTE DEIN WISSEN

Which of the following is the NET IONIC equation for the reaction between AgNO3(aq) and Na3PO4(aq)? 


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TESTE DEIN WISSEN

3Ag+(aq) + PO43-(aq) ---> Ag3PO4(s) 


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TESTE DEIN WISSEN

Which of the following statements is NOT true? 


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TESTE DEIN WISSEN

If a gas is heated from 50°C to 100°C at constant pressure, the volume will double.

Lösung ausblenden
TESTE DEIN WISSEN

What is the empirical formula for a compound containing 68.3% lead, 10.6% sulfur and the remainder oxygen? 


Lösung anzeigen
TESTE DEIN WISSEN

PbSO4 


Lösung ausblenden
TESTE DEIN WISSEN

The mass of a single atom of an element (in amu) is numerically equal to the mass in grams of that element. 


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TESTE DEIN WISSEN

false

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TESTE DEIN WISSEN

Suppose 10.0 grams of sodium metal and 10.0 grams of oxygen gas are reacted in a closed vessel and the reaction proceeds to completion to produce Na2O with no other products. Which reactant is the limiting reagent, and how much of the reagent in excess will be left over? 


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TESTE DEIN WISSEN

Sodium is limiting reagent, and 6.52 g of O2 will be left over. 


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TESTE DEIN WISSEN

Which statement is FALSE?


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TESTE DEIN WISSEN

The charge on a proton is positive, the charge on a neutron is negative. 


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TESTE DEIN WISSEN

Ammonia (NH3) is produced using the following equation:


N2 + 3 H2 ---> 2 NH3


When 6.00 grams of H2 and 28.0 grams of N2 were reacted, 30.0 grams of ammonia were produced. What was the percent yield? 

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TESTE DEIN WISSEN

88.2%

Lösung ausblenden
TESTE DEIN WISSEN

For the reaction CH4 + 2O2 -> CO2 + 2H2O, 4.00 grams of CO2 are collected when 1.50 grams of CH4 react with an excess of amount of O2 . What is the percent yield?

Lösung anzeigen
TESTE DEIN WISSEN

97.2 %

Lösung ausblenden
TESTE DEIN WISSEN

In an experiment with Zn and S, it was found that 30.7 g of ZnS was produced. If the percent yield of the reaction was 93.7%, what is the theoretical yield of this reaction? 


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TESTE DEIN WISSEN

32.8 g 


Lösung ausblenden
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Beispielhafte Karteikarten für deinen CHEM LEC Kurs an der Far Eastern University - von Kommilitonen auf StudySmarter erstellt!

Q:

Lithium and nitrogen react to produce lithium nitride:

6Li (s) + N2 (g) → 2Li3N (s)

How many moles of N2 are needed to react with 0.550 mol of lithium?

A:

0.0917 

Q:

Real gases behave most ideally at: 


A:

high temperature and low pressure. 


Q:

What is the empirical formula for a compound containing 68.3% lead, 10.6% sulfur and the remainder oxygen? 


A:

PbSO4 


Q:

Which of the following is the NET IONIC equation for the reaction between AgNO3(aq) and Na3PO4(aq)? 


A:

3Ag+(aq) + PO43-(aq) ---> Ag3PO4(s) 


Q:

Which of the following statements is NOT true? 


A:

If a gas is heated from 50°C to 100°C at constant pressure, the volume will double.

Mehr Karteikarten anzeigen
Q:

What is the empirical formula for a compound containing 68.3% lead, 10.6% sulfur and the remainder oxygen? 


A:

PbSO4 


Q:

The mass of a single atom of an element (in amu) is numerically equal to the mass in grams of that element. 


A:

false

Q:

Suppose 10.0 grams of sodium metal and 10.0 grams of oxygen gas are reacted in a closed vessel and the reaction proceeds to completion to produce Na2O with no other products. Which reactant is the limiting reagent, and how much of the reagent in excess will be left over? 


A:

Sodium is limiting reagent, and 6.52 g of O2 will be left over. 


Q:

Which statement is FALSE?


A:

The charge on a proton is positive, the charge on a neutron is negative. 


Q:

Ammonia (NH3) is produced using the following equation:


N2 + 3 H2 ---> 2 NH3


When 6.00 grams of H2 and 28.0 grams of N2 were reacted, 30.0 grams of ammonia were produced. What was the percent yield? 

A:

88.2%

Q:

For the reaction CH4 + 2O2 -> CO2 + 2H2O, 4.00 grams of CO2 are collected when 1.50 grams of CH4 react with an excess of amount of O2 . What is the percent yield?

A:

97.2 %

Q:

In an experiment with Zn and S, it was found that 30.7 g of ZnS was produced. If the percent yield of the reaction was 93.7%, what is the theoretical yield of this reaction? 


A:

32.8 g 


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