Question
In: Chemistry
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?
Solutions
queen_honey_blossom answered 2 years agoRelated Solutions
a) Magnesium metal reacts with HCl solution, liberating H2 gas and generating Mg2+ cations in solution....
a) Magnesium metal reacts with HCl solution, liberating
H2 gas and generating Mg2+ cations in
solution. A 2.780-g sample of Mg metal is added to 50.0 mL of a
4.00 M HCl solution, and the reaction goes to completion. What mass
of H2 is formed?
b) What is the concentration of Mg2+ ions in the
resulting solution? (Assume the final volume of solution is still
the same as the original volume of the acid.)
If 0.291 g of Mg is reacted with excess HCl and 301 mL of H2 gas...
If 0.291 g of Mg is reacted with excess HCl and 301 mL of H2 gas
is collected in a gas collection tube over water at 25oC and 1 atm
of pressure. What is the experimental partial pressure of water
vapor in the hydrogen gas?
1: A piece of solid magnesium is reacted with hydrochloric acid to form hydrogen gas: Mg(s)...
1:
A piece of solid magnesium is reacted with hydrochloric acid to
form hydrogen gas:
Mg(s) + 2
HCl(aq) à MgCl2(aq) + H2(g)
What volume of hydrogen gas (in mL) is collected over water at
25 °C by reaction of 0.450 g of Mg (AW = 24.3 g/mol) with 5.00 mL
of 1.0 M HCl? The barometer records an atmospheric pressure of 762
torr and the vapor pressure of water at this temperature is 23.35
torr.
2:
Given the following...
A solution containing a mixture of metal cations was treated with dilute HCl and a precipitate...
A solution containing a mixture of metal cations was treated
with dilute HCl and a precipitate formed. The solution was filtered
and H2S was bubbled through the acidic solution. A precipitate
again formed and was filtered off. Then, the pH was raised to about
8 and H2S was again bubbled through the solution. This time, no
precipitate formed. Finally, the solution was treated with a sodium
carbonate solution, which resulted in formation of a precipitate.
Which metal ions were definitely...
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...
Aluminum, iron and magnesium are used to manufacture certain metal parts.The quantity of parts produced from...
Aluminum, iron and magnesium are used to manufacture certain
metal parts.The quantity of parts produced from x tons of aluminum
y tons of iron and z tons of magnesium is Q (x, y, z) = xyz.
Aluminum is $ 800 per ton, iron is $ 400 per ton, and magnesium is
$ 600 per ton.
use the Lagrange multiplier method to determine the number of tons of each material that must be used to manufacture 5000 metal parts at the...
Aluminum chloride is made from aluminum metal and chlorine gas, as shown: 2Al(s) + 3Cl2(g) --->...
Aluminum chloride is made from aluminum metal and chlorine gas,
as shown:
2Al(s) + 3Cl2(g) ---> 2AlCl3(s)
When 10.0g of aluminum and 25.0g of chlorine are reacted, 18.6g
of aluminum chloride is formed. Determine:
a) the limiting reactant
b) the theoretical yield in grams
c) the percent yield for this reaction
d) the excess reactant in grams
A gas mixture for use in some lasers contains 5.00 % by weight HCl, 1.00 %...
A gas mixture for use in some lasers contains 5.00 % by weight
HCl, 1.00 % H2, and 94 % Ne. The mixture is sold in cylinders that
have a volume of 49.0 L and a pressure of 13300 kPa at 21.0 ∘C
What is the partial pressure (in kilopascals) of each gas in the
mixture?
What are the net ionic equations for... - Magnesium and HCl - Iron and HCl -...
What are the net ionic equations for...
- Magnesium and HCl
- Iron and HCl
- Copper and HCl
- Zinc and HCl
- Tin and HCl
- Lead and HCl
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