Homework Answers
Initial volume = 0 liter; because no Hydrogens gas will be evolved at the start of the reaction
final volume = 25 liters
Pressure = 1 atm
a) work done at constant pressure, W = P
V
= P(final volume - initial volume)
= 1 (25 - 0)
=1 (25)
= 25 liter.atm
b) In calories, 1 liter.atm. = 24.2 cal
then, 25 liter.atm = (25)*(24.2)
= 605 cal
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help please
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#4 please All information needed to complete this worksheet can be found in the pre-lab information and calculation...
#4 please
All information needed to complete this worksheet can be found in the pre-lab information and calculations sections of the lab manual. Read this introductory material first Record all values with the correct number of significant figures and units. Place all answers on the line when provided. show calculations for any numerical answers' work must be shown to receive credit. See any 102 TA in the help office before your prelab is due if you have any questions. Each...
please show work How many grams of HCl, are needed to produce 125 ml of carbon...
please show work
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Need help solving these last 7 questions. Please use the data above to calculate the answers. Molar Volume of a Gas Room...
Need help solving these last 7
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Please help with the post lab and the pre lab (except for obviously #1 on the...
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obviously #1 on the post lab) thank you!
PRELAB name: What is the ideal gas law? Write the equation below and label all the components of the equation. Write the balanced chemical equation for the reaction between Mg and HCl below include phases of each constituent. Mg + HCI 3. If a student used an excess of HCl to dissolve 0.045 grams of pure Mg ribbon, and collected...
Please tell me if these workings are correct? If not, could you please help me correct...
Please tell me if these workings are correct? If not, could
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The lesson is about First Law of Thermodynamic. The problems
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YOU!
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2. If the volume of a gas increases by AV (liters) against a constant restraining pressure P (atm), the work transferred from the system (the gas) to its surroundings is PAV (liter atm) a. Work has units of energy but liter atm is not a convenient unit. Show how to convert 1.00 liter atm to joules (J). b. Suppose 201 cal are transferred to a gas in a balloon (as heat) and the gas expands What is the energy balance?...
Please help with these questions
1. Methane (CH4) burns in air to form carbon dioxide
and water as shown below.
CH4(g) + 2 O2(g) → CO2(g) + 2
H2O(l)
If a sample of methane occupies 802. mL at 3.23 atm, what
pressure (in atm) of oxygen gas with the same temperature and
volume is required to complete the reaction?
2. Consider the reaction between hydrogen gas and nitrogen gas
to form ammonia:
3 H2(g) + N2(g) → 2 NH3(g).
What...
Please help with these two questions
1.) Consider the reaction between hydrogen gas and oxygen gas to
form water:
2 H2(g) + O2(g) → 2 H2O(g).
How many grams of water could be produced by the reaction of
4.28 liters of hydrogen with 4.11 liters of oxygen at STP?
2.) Automobile airbags use the decomposition of sodium azide,
NaN3, to provide gas for rapid inflation:
2 NaN3(s) → 2 Na(s) + 3 N2(g).
Using stoichiometry and the ideal gas law,...
#4 please
All information needed to complete this worksheet can be found in the pre-lab information and calculations sections of the lab manual. Read this introductory material first Record all values with the correct number of significant figures and units. Place all answers on the line when provided. show calculations for any numerical answers' work must be shown to receive credit. See any 102 TA in the help office before your prelab is due if you have any questions. Each...
please show work
How many grams of HCl, are needed to produce 125 ml of carbon dioxide gas at STP in the following reaction? CaCO3(s) + 2 HCl(aq) - -> CaCl(aq) + CO2(g) + H20(1) In a reaction similar to this laboratory experiment, 0.625 g of aluminum metal was completely consumed and the H, gas collected over water at 55.0°C and atmospheric pressure of 759 mm Hg. What was the volume of H, gas produced? (Be sure to correct H2...
Need help solving these last 7
questions. Please use the data above to calculate the answers.
Molar Volume of a Gas Room temperature (T2): Barometric pressure: C be & torr Tria .0544 Data Trial 2 Trial 1 Mass of Mg strip Temperature of water in the 600-mL beaker 8.1 torr 142 Vapor pressure of water at the temperature in the 600-mL beaker torr torr S6.4 A.1 Volume of gas collected at room temperature mL mL ,67as 0541 S04L Volume of...
Please help with the post lab and the pre lab (except for
obviously #1 on the post lab) thank you!
PRELAB name: What is the ideal gas law? Write the equation below and label all the components of the equation. Write the balanced chemical equation for the reaction between Mg and HCl below include phases of each constituent. Mg + HCI 3. If a student used an excess of HCl to dissolve 0.045 grams of pure Mg ribbon, and collected...
Please tell me if these workings are correct? If not, could
you please help me correct my mistakes. Im not sure if I need to
subtract the atmospheric pressure - and if I have to, I cant
understand how to calculate it with what ive been given.
Show sample calculations for Trial 1 only. Simply report the results for Trial 2 1. Calculate the moles of hydrogen gas produced from the reaction. (2 marks) O. 01329 - 5,43x10-Mol 1. MM...
The lesson is about First Law of Thermodynamic. The problems
have answers but i need solutions. PLEASE HELP ME! THANK
YOU!
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