Question
In: Chemistry
A mixture of 8-hydroxyquinoline complexes of aluminum and magnesium weigh 1.0843 g. When ignited in a...
A mixture of 8-hydroxyquinoline complexes of aluminum and magnesium weigh 1.0843 g. When ignited in a furnace open to the air, the mixutre decomposed, leaving a residue of Al2O3 and Mg weighing 0.1344. What is the weight percent of Al(C9H6NO3) in the original mixture? AlQ3 + MgQ2 ? Al2O3 + MgO
Solutions
queen_honey_blossom answered 8 hours agoRelated Solutions
0.352g of a mixture of aluminum and magnesium metal is reacted with HCl and the gas...
0.352g of a mixture of aluminum and magnesium metal is
reacted with HCl
and the gas produced collected over water at 21.5°C and 755.3mmHg.
The vapor pressure of water at this temperature is 19.2 torr. If
412.5mL of gas is collected, what is the percent of magnesium in
the mixture?
1. What is the percent yield of MgO produced if 1.502 g of magnesium is ignited...
1. What is the percent yield of MgO produced if 1.502 g of
magnesium is ignited in air producing 1.699 g of MgO?
A 0.250-g sample of a magnesium-aluminum alloy dissolves completely in an excess of HCl(aq). When the...
A 0.250-g sample of a magnesium-aluminum alloy dissolves
completely in an excess of HCl(aq). When the liberated H2(g) is
collected over water at 29 ∘C and 752 torr, the volume is found to
be 303 mL . The vapor pressure of water at 29 ∘C is 30.0 torr.
How many moles of H2 can be produced
from x grams of Mg in magnesium-aluminum alloy? The
molar mass ofMg is 24.31 g/mol. Express your answer in terms of
x to four...
A 0.250-g sample of a magnesium-aluminum alloy dissolves completely in an excess of HCl(aq). When the...
A 0.250-g sample of a magnesium-aluminum alloy dissolves
completely in an excess of HCl(aq). When the liberated H2(g) is
collected over water at 29 ∘C and 752 torr, the volume is found to
be 305 mL . The vapor pressure of water at 29 ∘C is 30.0 torr.
a. Taking into account the vapor pressure of water, how many
moles of hydrogen gas, n, are present in 305 mL at 752
torr and 29 ∘C? The value of the gas...
when a mixture of 10.0g of acetylene, C2H2 and 10.0g of oxgyen, O2 is ignited the...
when a mixture of 10.0g of acetylene, C2H2 and 10.0g of oxgyen,
O2 is ignited the resulant combustion reaction procedures CO2 and
H2O
2C2H2 + SO2= 4Co2 + 2H2O
what is limiting reactant?
what is the excess reactant?
how many grams of CO2 are produce after the reaction is
complete?
how many grams of H2O are produced after the reaction is
complete?
how many grams of excess reactant (C2H2 or O2) remain?
8.04 grams of CO2 were actally produce calculate...
A mixture of magnesium carbonate and barium carbonate with a total mass of 1.000 g was...
A mixture of magnesium carbonate and barium carbonate with a
total mass of 1.000 g was treated with excess of hydrochloric acid
to produce 0.407 g of carbon dioxide gas. Write balanced reaction
equations occurring to this system. Calculate the mass percent of
magnesium carbonate in the starting mixture (with three significant
figures).
A 14.2 g sample of a mixture of magnesium carbonate and calcium carbonate is treated with...
A 14.2 g sample of a mixture of magnesium carbonate and calcium
carbonate is treated with excess HCl. The resulting reaction
produces 4.55 L of carbon dioxide gas at 28 °C and 675 torr.
Write a balanced chemical equation for the reaction that takes
place between magnesium carbonate and HCl. Include physical
states.
chemical reaction:
Write a balanced chemical equation for the reaction that takes
place between calcium carbonate and HCl. Include physical
states.
chemical reaction:
Calculate the total number...
Some commercial drain cleaners contain a mixture of sodium hydroxide and aluminum powder. When the mixture...
Some commercial drain cleaners contain a mixture of sodium
hydroxide and aluminum powder. When the mixture is poured down a
clogged drain, the following reaction occurs:
2NaOH(aq) + 2Al(s) + 6H2O(l) →
2NaAl(OH)4(aq) + 3H2(g)
The heat generated in this reaction helps melt away obstructions
such as grease, and the hydrogen gas released stirs up the solids
clogging the drain. Calculate the volume of H2 formed at
23°C and 1.00 atm if 3.12 g of Al are treated with an...
5. A mixture of methane and air is capable of being ignited only if the mole...
5. A mixture of methane and air is capable of being ignited only
if the mole percent of methane is between 5% and 15%. A mixture
containing 14.0 mole% methane in air flowing at a rate of 600. kg/h
is to be diluted with pure air to reduce the methane concentration
to the lower flammability limit. Calculate the required flow rate
of air in kmol/h and the percent by mass of oxygen in the product
gas.
Aluminum reacts with hydrochloric acid, but copper does not react with the acid. When a mixture...
Aluminum reacts with hydrochloric acid, but copper does not
react with the acid. When a mixture of aluminum and copper having a
mass of 0.3579 grams is combined with excess hydrochloric acid,
315.50 mL of hydrogen gas, measured over water, is generated. The
temperature at the time of collection is 27.3 oC (vapor
pressure of water at 27.3 oC = 27.214 torr), and the
total pressure in the collection container is 764.1 torr. Determine
the mass percentage of aluminum in...
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