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8. Quantities in Chemical Reactions

Stoichiometry

8. Quantities in Chemical Reactions

Stoichiometry

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Stoichiometry Example 1

Stoichiometry Example 1

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Multiple Choice
The oxidation of chromium solid is represented by the following equation:

$4 C r of s plus 3 O sub 2 of g long right arrow 2 C r sub 2 of O sub 3 of s$

How many moles of chromium (III) oxide are produced when 34.69 g Cr reacts with excess oxygen gas?
2278
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1
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Multiple Choice
The reaction of potassium chlorate and sucrose is given below:
If 2.33 x 10^-7 formula units of potassium chlorate are reacted, how many grams of carbon dioxide will be produced?
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Multiple Choice
If the density of ethanol, CH₃CH₂OH, is 0.789 g/mL, how many milliliters of ethanol are needed to produce 4.8 g of H₂O in the following reaction?
2007
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Textbook Question
How many moles of NiCl_2 can be formed in the reaction of 6.00 mol of Ni and 12.0 mol of HCl?
1632
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Textbook Question
Balance the following equation, and tell how many moles of nickel will react with 9.81 mol of hydrochloric acid.Ni(s) + HCl(aq) → NiCl2(aq) + H2(g)
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Textbook Question
The following diagram represents the reaction of (red spheres) with (blue spheres):
How many moles of product can be made from 1.0 mol of A2? From 1.0 mol of B2?
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Textbook Question
Titanium metal is obtained from the mineral rutile, TiO2. The process requires multiple steps, as shown in the following reactions:TiO2(S) + 2 Cl2(G) + 2 C(s) → TiCl4(s) + 2 CO(g)TiCl4(s) + 2 Mg(s) → Ti(s) + 2 MgCl2(s)Write mole ratios to show the relationship between the reactants and products for each reaction.
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