Question
In: Chemistry
A reaction of 0.0320 g of magnesium with excess hydrochloric acid generated 31.21 mL of gas....
A reaction of 0.0320 g of magnesium with excess hydrochloric
acid generated 31.21 mL of gas. The gas was
collected by water displacement in a 22 oC water bath. The
barometric pressure in the lab that day was 736
mmHg.
1. Write the balanced chemical equation for this reaction.
2. What is the theoretical number of moles of hydrogen that can be
produced from 0.032 g of Mg?
3. Use Dalton’s law and the vapor pressure table to calculate the
partial pressure of hydrogen gas in the
collecting tube.
4. Use the ideal gas law to calculate the moles of hydrogen gas
actually produced.
5. Calculate the percent yield of moles of hydrogen gas
produced
Solutions
Expert Solution
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queen_honey_blossom answered 2 years agoRelated Solutions
When 0.0425 g of magnesium metal were allowed to react with excess hydrochloric acid, 45.80 mL...
When 0.0425 g of magnesium metal were allowed to react with
excess hydrochloric acid, 45.80 mL of hydrogen gas were collected
over water. The barometric pressure at the time was reported to be
29.78 in Hg. The temperature of the water near the mouth of the
eudiometer was 25.1oC. The water level inside the tube was measured
to be 25.24 cm higher than the water level in the beaker.
(g) What is the molar gas volume at STP as determined...
For the following reaction, 3.46 grams of hydrochloric acid are mixed with excess oxygen gas. The...
For the following reaction, 3.46 grams of hydrochloric acid are
mixed with excess oxygen gas. The reaction yields 0.728 grams of
water. hydrochloric acid (aq) + oxygen (g) water (l) + chlorine (g)
What is the theoretical yield of water ? What is the percent yield
of water ?
how many grams of magnesium metal are required to react with excess hydrochloric acid to produce...
how many grams of magnesium metal are required to react with
excess hydrochloric acid to produce 28.50 ml of hydrogen, measured
at 26.0 C and 760 mm Hg
a sample of magnesium metal reacts completely with an excess of hydrochloric acid: MG(s) + 2...
a sample of magnesium metal reacts completely with an excess of
hydrochloric acid: MG(s) + 2 HCl (aq) = MgCl2(aq) + H2(g). The
hydrogen gas produced is collected over water at 28.0 C. the volume
of the gas is 46 L and the total pressure in the gas collection
vessel is 1.01 atm. calculate the mass of magnesium metal that
reacted in grams (vapor pressure of water at 28.0 C = 28.2
mmHg)
chlorine gas can be prepared in the lab by the reaction of hydrochloric acid with manganese...
chlorine gas can be prepared in the lab by the reaction of
hydrochloric acid with manganese oxide. you add 42.5g of MnO2 to a
solution containing 48.9g of HCL.
A-what is the theoretical yield of Cl2?
B- if the yield of the reaction is 79.5%, what is the actual
yield of chlorine?
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...
Aluminum reacts with excess hydrochloric acid to form aqueous aluminum chloride and hydrogen gas. The resulting...
Aluminum reacts with excess hydrochloric acid to form aqueous
aluminum chloride and hydrogen gas. The resulting gas is collected
over water and it measured to have 218.6 ml at 26°C and 0.947 atm.
If the vapor pressure of water is 25.2 mmHg at 26ºC, how many grams
of aluminum reacted?
Air is about 78.0% nitrogen molecules and 21.0% oxygen
molecules. Several other gases make up the remaining 1% of air
molecules.
What is the partial pressure of nitrogen in air...
Sodium cyanide solution, when poured into excess hydrochloric acid, releases hydrogen cyanide as a gas. The...
Sodium cyanide solution, when poured into excess hydrochloric
acid, releases hydrogen cyanide as a gas. The reaction is NaCN(aq)
+ HCl(aq) → HCN(g) + NaCl(aq) Identify the conjugate acid–base
pairs in this reaction out of the following. HCN and Cl- HCN and
CN- CN- and HCl HCl and Cl–
Chlorine gas can be prepared in the laboratory by the reaction of hydrochloric acid with manganese(IV)...
Chlorine gas can be prepared in the laboratory by the reaction
of hydrochloric acid with manganese(IV) oxide.
4HCl(aq)+MnO2(s)⟶MnCl2(aq)+2H2O(l)+Cl2(g)
A sample of 41.5 g MnO2 is added to a solution containing 48.7 g
HCl.
What is the theoretical yield of Cl2?
theoretical yield:___gCl2
If the yield of the reaction is 76.3%, what is the actual yield
of chlorine?
actual yield:___g Cl2
Chlorine gas can be prepared in the laboratory by the reaction of hydrochloric acid with manganese(IV)...
Chlorine gas can be prepared in the laboratory by the reaction
of hydrochloric acid with manganese(IV) oxide:
4HCL(aq)+MnO2(s)------>MnCl2(aq)+2H2O(l)+Cl2(g)
You ad 39.3g of MnO2 to a solution containing 49.3g of HCl
a. what is the limiting reactant?
b. what is the theoretical yield of Cl2?
c. if the yield of the reaction is 84.1%, what is the actual
yield of chlorine?
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