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Biblioteka

Senior 2024 Spring Final Exam Part 1 (5/22/2024)

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Posljednje ažuriranje about 1 year ago
8
Calculating Molar Mass
Obavezno
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Obavezno
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Grams to Moles Conversions
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Obavezno
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Moles to Moles Stoichiometry
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Obavezno
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Obavezno
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Mass to Mass Stoichiometry
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Pitanje 1
1.

Calculate the molar mass for calcium carbonate: CaCO3

Pitanje 2
2.

Calculate the molar mass for octanoic acid: C8H16O2

Pitanje 3
3.

Calculate the number of moles of sodium hydroxide that is present in 16.45 g of NaOH [use 41.00 g/mol as the molar mass for NaOH]

Pitanje 4
4.

Calculate the number of moles of carbon dioxide that is present in 8.23 g of CO2 [use 44.01 g/mol as the molar mass for CO2]

Pitanje 5
5.

Given the balanced equation: C3H8 + 5 O2 ------> 3 CO2 + 4 H2O

How many moles of C3H8 are needed to produce 25 moles CO2 ?

Pitanje 6
6.

Given the balanced equation: 2 SO2 + O2 + 2 H2O ------> 2 H2SO4

How many moles of H2SO4 are produced from 12.5 moles of SO2 ?

Pitanje 7
7.

Given the balanced equation: 2 SO2 + O2 + 2 H2O ------> 2 H2SO4

Which is the correct mole ratio to calculate how many moles of O2 are needed to produce 12.5 moles H2SO4 ?

Pitanje 8
8.

Hydrogen reacts with excess nitrogen as follows: N2 (g) + 3H2 (g) -----> 2 NH3 (g)

If 27.0 g of H2 reacts, what mass of NH3 is formed?