When hydrogen gas is collected over water by reacting HCl with aluminum-zinc alloy, is there anything...
When hydrogen gas is collected over water by reacting HCl with aluminum-zinc alloy, is there anything related to kinetic molecualr theory going on? Especially when displacing the water from a flask to a beaker through rubber tubie.
Homework Answers
I think kinetic molecualr theory is nothing to do. Since water is the by product of the reaction , displacing of water shifted the reaction in forward direction according to le chatelier's principle.
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When hydrogen gas is collected over water by reacting HCl with
aluminum-zinc alloy, is there anything...
A materials scientist has created an alloy containing aluminum, copper, and zinc, and wants to determine...
A materials scientist has created an alloy containing aluminum, copper, and zinc, and wants to determine the percent composition of the alloy. The scientist takes a 11.282 g sample of the alloy and reacts it with concentrated HCl. The reaction converts all of the aluminum and zinc in the alloy to aluminum chloride and zinc chloride in addition to producing hydrogen gas. The copper does not react with the HCl. Upon completion of the reaction, a total of 8.70 L...
Hydrogen gas is prepared in the laboratory by reacting dilute HCl with granulated zinc. Following reaction...
Hydrogen gas is prepared in the laboratory by reacting dilute HCl with granulated zinc. Following reaction takes place. Zn + 2HCl → ZnCl2 + H2 Calculate the volume of hydrogen gas liberated at STP when 32.65 g of zinc reacts with HCl. 1 mol of a gas occupies 22.7 L volume at STP; atomic mass of Zn = 65.3 u.Read more on Sarthaks.com - https://www.sarthaks.com/117934/hydrogen-prepared-laboratory-reacting-dilute-granulated-following-reaction-takes-place
A materials scientist has created an alloy containing aluminum, copper, and zinc, and wants to determine the percent composition of the alloy. The scientist takes a 12.502 g sample of the alloy a...
A materials scientist has created an alloy containing aluminum, copper, and zinc, and wants to determine the percent composition of the alloy. The scientist takes a 12.502 g sample of the alloy and reacts it with concentrated HCI. The reaction converts all of the aluminum and zinc in the alloy to aluminum chloride and zinc chloride in addition to producing hydrogen gas. The copper does not react with the HCI. Upon completion of the reaction, a total of 9.78 L...
Prelaboratory Assignment: Analysis of an Aluminum-Zinc Alloy having a difficult time figuring out how to tackle...
Prelaboratory Assignment: Analysis of an Aluminum-Zinc
Alloy
having a difficult time figuring out how to tackle the
following:
please help! thank you.
equation 5 is included in here
Name: Date: Section: Prelaboratory Assignment: Analysis of an Aluminum-Zinc Alloy 1. On the following page, construct a graph of N vs % AL. To do this, refer to equation 5 and the discussion preceding it. Calculate for % Al=0.25.50.75, and 100. Place these points on the graph and Draw the best straight...
Hydrogen gas is produced by the reaction of hydrochloric acid, HCl, on zinc metal. 2HCl (aq)...
Hydrogen gas is produced by the reaction of hydrochloric acid, HCl, on zinc metal. 2HCl (aq) + Zn (s) --> ZnCl2 (aq) + H2 (g) The gas is collected over water. If 106 mL of gas is collected at 28C and 775 mmHg, what is the mass of hydrogen collected? (vapor pressure of water at 28C is 25.6 mmHg)
Q2 part1. Hydrogen gas can be readily prepared by reacting zinc metal with hydrochloric acid: Zn(s)...
Q2 part1. Hydrogen gas can be readily prepared by reacting zinc metal with hydrochloric acid: Zn(s) + 2HCl(aq) → ZnCl2(aq) + H2(g) A sample of zinc metal was decomposed in hydrochloric acid and the hydrogen gas was collected over water. The volume of gas collected is 0.798 L at 25oC and a total pressure of 735 torr. How many grams of zinc were decomposed assuming there is an excess of hydrochloric acid? [Hint: the vapor pressure of water at 25oC...
When 0.40 g of impure zinc reacted with excess hydrochloric acid, 127mL of hydrogen gas were...
When 0.40 g of impure zinc reacted with excess hydrochloric acid, 127mL of hydrogen gas were collected over water at 10 degrees C at a total pressure of 737.77 Torr. The vapor pressure of water at 10 degrees C is 9.21 Torr. The reaction in question is: Zn (s) + 2HCl (aq) --> ZnCl2 (aq) + H2 (aq) A.) what amount (in grams) of H2 gas was collected? B.) what is the percentage of purity of the zinc, assuming that...
Hydrogen gas was produced by reacting 0.976 g of zinc metal with excess hydrochloric acid. Write...
Hydrogen gas was produced by reacting 0.976 g of zinc metal with excess hydrochloric acid. Write a balanced reaction equation (include states). If 376 mL of hydrogen gas is collected over water at 25 °C at a total pressure of 751 mm Hg, what was the experimental molar mass of Zn? 1. Write a balanced reaction equation (include states). 2. What was the experimental molar mass of Zn? Answer to the correct number of significant figures. 3. Calculate the %...
Jus Magnesium reacts with HCl(aq) to produce hydrogen gas. When a student collected the hydrogen from...
Jus Magnesium reacts with HCl(aq) to produce hydrogen gas. When a student collected the hydrogen from the reaction over water, he forgot to account for the vapor pressure of water. The calculated grams of magnesium in the experiment would be: Unnafected Too high Not enough information to tell Too Low
Hydrogen peroxide was catalytically decomposed and 75.3 mL of oxygen gas was collected over water at 25°C and 742 torr
.1. Hydrogen peroxide was catalytically decomposed and 75.3 mL of oxygen gas was collected over water at 25°C and 742 torr. What mass of oxygen was collected? (Pwater 24 torr at 25°C) 2. Small quantities of hydrogen can be prepared by the addition of hydrochloric acid to zinc. A sample of 195 mL of hydrogen was collected over water at 25°C and 753 torr. What mass of hydrogen was collected? (Pwater 24 torr at 25°C) 3. The air in a bicycle tire...
A materials scientist has created an alloy containing aluminum, copper, and zinc, and wants to determine the percent composition of the alloy. The scientist takes a 12.502 g sample of the alloy and reacts it with concentrated HCI. The reaction converts all of the aluminum and zinc in the alloy to aluminum chloride and zinc chloride in addition to producing hydrogen gas. The copper does not react with the HCI. Upon completion of the reaction, a total of 9.78 L...
Prelaboratory Assignment: Analysis of an Aluminum-Zinc
Alloy
having a difficult time figuring out how to tackle the
following:
please help! thank you.
equation 5 is included in here
Name: Date: Section: Prelaboratory Assignment: Analysis of an Aluminum-Zinc Alloy 1. On the following page, construct a graph of N vs % AL. To do this, refer to equation 5 and the discussion preceding it. Calculate for % Al=0.25.50.75, and 100. Place these points on the graph and Draw the best straight...
Jus Magnesium reacts with HCl(aq) to produce hydrogen gas. When a student collected the hydrogen from the reaction over water, he forgot to account for the vapor pressure of water. The calculated grams of magnesium in the experiment would be: Unnafected Too high Not enough information to tell Too Low
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