Question

Prelab Stamp Here Mg(s) +2HCl(aq) --->MgCl2(aq)+H2(g) 2) A student performs this reaction in the laboratory, and...

Prelab Stamp Here

Mg(s) +2HCl(aq) --->MgCl2(aq)+H2(g)

2) A student performs this reaction in the laboratory, and collects the hydrogen gas over water. The student collects 215.8 mL of gas. The total pressure is 755.2 mm Hg and a temperature of 22.0 °C. a) What is the vapor pressure of water at 22.0 °C?

　

b) What is the partial pressure of hydrogen in the tube in mm Hg? in atm?

c) Use the ideal gas law to calculate how many moles of hydrogen were produced in the reaction.

d) How many moles of Mg reacted? (assume 100% yield)

e) What mass of Mg reacted?

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
1. How many liters of H2 gas can be genterated via reaction of 0.545 g Mg...
1. How many liters of H2 gas can be genterated via reaction of 0.545 g Mg with excess HCl at 23 degrees C, and 735 mm Hg? Mg(s) + 2HCl(aq) --> MgCl2(aq) + H2(g) 2. A gas sample with a mass of 0.625g occupies a volume of 0.547 L at a temperature of 298K and a pressure of 758 mm Hg. What is the molar mass of the gas? The idenity of the gas is likely to be.... ?
Mg metal reacts with HCl to produce hydrogen gas. Mg(s)+2HCl(aq)→MgCl2(aq)+H2(g) What volume of hydrogen at 0...
Mg metal reacts with HCl to produce hydrogen gas. Mg(s)+2HCl(aq)→MgCl2(aq)+H2(g) What volume of hydrogen at 0 ∘C and 1.00 atm (STP) is released when 8.80 g of Mg reacts? Express your answer with the appropriate units. How many grams of magnesium are needed to prepare 5.75 L of H2 at 745 mmHg and 16 ∘C? Express your answer with the appropriate units.
The hydrogen gas from the reaction: Zn(s) +2HCl(aq)->ZnCl2(aq)+H2(g) is bubbled through water for collection. 250mL of...
The hydrogen gas from the reaction: Zn(s) +2HCl(aq)->ZnCl2(aq)+H2(g) is bubbled through water for collection. 250mL of Hydrogen gas is collected at 25o Celsius. The total pressure is 1.032 atm. Calculate the partial pressure of the hydrogen gas and the mass of Zinc required to produce that gas. (The vapor pressure of water is 23.76 torr at 25oCelsius).
Propose a reaction mechanism for the following: Mg(s)+2HCl(aq)---->H2(aq)+MgCl2(aq) The reaction order is 4; Rate=k〖[HCl]〗^2 〖[Mg]〗^2 I...
Propose a reaction mechanism for the following: Mg(s)+2HCl(aq)---->H2(aq)+MgCl2(aq) The reaction order is 4; Rate=k〖[HCl]〗^2 〖[Mg]〗^2 I need help determining the elementary steps as chemical equations
Mg(s) + HCl (aq) ---> MgCl2(aq) + H2(g) Consider the above unbalanced equation. What volume of...
Mg(s) + HCl (aq) ---> MgCl2(aq) + H2(g) Consider the above unbalanced equation. What volume of H2 is produced at 340 mm Hg and 73.4°C when 0.86 g of Mg reacts with excess HCl? Use molar masses with at least as many significant figures as the data given
Mg + 2HCl ---> MgCl2 + H2 If 825 mL of hydrogen gas were needed at...
Mg + 2HCl ---> MgCl2 + H2 If 825 mL of hydrogen gas were needed at 22 C and 755 mmHg, how many mL of 0.200 M of HCl would be required?
A) Zinc metal reacts with excess hydrochloric acid to produce hydrogen gas according to the following...
A) Zinc metal reacts with excess hydrochloric acid to produce hydrogen gas according to the following equation: Zn(s) + 2HCl(aq) ------------> ZnCl2(aq) + H2(g) The product gas, H2, is collected over water at a temperature of 20 °C and a pressure of 757 mm Hg. If the wet H2 gas formed occupies a volume of 7.17L, the number of moles of Zn reacted was ___________ mol. The vapor pressure of water is 17.5 mm Hg at 20 °C. B) Oxygen...
Hydrogen gas can be produced in the laboratory through the reaction of magnesium metal with hydrochloric...
Hydrogen gas can be produced in the laboratory through the reaction of magnesium metal with hydrochloric acid: Mg(s)+2HCl(aq)→MgCl2(aq)+H2(g) What is the volume, in liters, of H2 gas produced at 27 ∘C and 820 mmHg from the reaction of 30.0 g of Mg?
A piece of solid magnesium is reacted with dilute hydrochloric acid to form hydrogen gas: Mg(s)...
A piece of solid magnesium is reacted with dilute hydrochloric acid to form hydrogen gas: Mg(s) + 2 HCl(aq) Æ MgCl2(aq) + H2(g) What volume of H2 is collected over water at 28 °C by reaction of 1.25 g of Mg with 50.0 mL of 0.10 M HCl? The barometer records an atmospheric pressure of 748 torr and the vapor pressure of water at this temperature is 28.35 torr. I am not quite sure what to do with the vapor...
Al(s) + HCl(aq) AlCl3(aq) + H2(g) Consider the above unbalanced equation. A 1.00 g sample of...
Al(s) + HCl(aq) AlCl3(aq) + H2(g) Consider the above unbalanced equation. A 1.00 g sample of a copper-aluminum alloy is reacted with excess hydrochloric acid. Only the aluminum reacts. The H2 produced is collected by displacement of water. If 110. mL of H2 is collected at a barometric pressure of 725 mm Hg and 25.0°C, what is the mass percent of Al in the sample? The vapor pressure of water is 23.8 mm Hg at 25.0°C. Use molar masses with...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT