Improve your search results. Select your educational institution and subject so that we can show you the most relevant documents and help you in the best way possible.
Ok, I understand!
Your school or university
Improve your search results. Select your educational institution and subject so that we can show you the most relevant documents and help you in the best way possible.
CHEM 103 Lab Exam 6 – Portage Learning. Bonds within a molecule are called intra-molecular bonds.

Non-polar (type) compounds are insoluble in water
CHEM 103 Lab Exam 6 – Portage Learning
Last document update:
ago
CHEM 103 Lab Exam 6 – Portage Learning. Bonds within a molecule are called intra-molecular bonds.

Non-polar (type) compounds are insoluble in water
CHEM 103 Lab Exam 3 – Portage Learning. A 1.1000 gram hydrate sample chosen from Na2CO3∙10H2O, AlCl3∙6H2O,

MgCl2∙6H2O and BaCl2∙2H2O was heated and found to lose 0.5841 gram of H2O. (1)

Show the calculation of the % H2O in the unknown hydrate sample. (2) Show the

calculation of the % H2O in each of the hydrate compounds and identify the unknown

hydrate from the list.

Atomic weights: H = 1.008, O = 16.00. MWs: Na2CO3∙10H2O = 286.15, AlCl3∙6H2O =

241.43, MgCl2∙6H2O = 203.301 ...
CHEM 103 Lab Exam 3 – Portage Learning
Last document update:
ago
CHEM 103 Lab Exam 3 – Portage Learning. A 1.1000 gram hydrate sample chosen from Na2CO3∙10H2O, AlCl3∙6H2O,

MgCl2∙6H2O and BaCl2∙2H2O was heated and found to lose 0.5841 gram of H2O. (1)

Show the calculation of the % H2O in the unknown hydrate sample. (2) Show the

calculation of the % H2O in each of the hydrate compounds and identify the unknown

hydrate from the list.

Atomic weights: H = 1.008, O = 16.00. MWs: Na2CO3∙10H2O = 286.15, AlCl3∙6H2O =

241.43, MgCl2∙6H2O = 203.301 ...
CHEM 103 Lab Exam 2 – Portage Learning. A decomposition reaction has more products than reactants.

exothermic Correct!

decomposition
CHEM 103 Lab Exam 2 – Portage Learning
Last document update:
ago
CHEM 103 Lab Exam 2 – Portage Learning. A decomposition reaction has more products than reactants.

exothermic Correct!

decomposition
CHEM 103 Lab Exam 1 – Portage Learning. Which of the volume-measuring devices was determined to be least accurate

in the volume measurement experiment?

2. What was the calculated volume for the pipet in the volume measurement

experiment?

3. Water at 22.5oC has a density of 0.99766 g/ml. A 10.3 ml sample of water at

22.5oC, delivered from a buret had a mass of 10.1532 grams as measured on an

analytical balance. (1) Show the calculation of the actual volume as determined

from this mass. (...
CHEM 103 Lab Exam 1 – Portage Learning
Last document update:
ago
CHEM 103 Lab Exam 1 – Portage Learning. Which of the volume-measuring devices was determined to be least accurate

in the volume measurement experiment?

2. What was the calculated volume for the pipet in the volume measurement

experiment?

3. Water at 22.5oC has a density of 0.99766 g/ml. A 10.3 ml sample of water at

22.5oC, delivered from a buret had a mass of 10.1532 grams as measured on an

analytical balance. (1) Show the calculation of the actual volume as determined

from this mass. (...
CHEM 103 Lab Exam 5 – Portage Learning . According to Boyle’s law, as the volume of a gas decreases, the

pressure _________.

3. (6 points) A sample of gas occupies a volume of 10.5 L when the pressure

is 14.3 psi. Use Boyle’s Law to calculate the volume (L) when the pressure is

decreased to 12.8psi. Show the calculation.

Answer:

1. A syringe was used, and the volume was read from the graduation

markings.
CHEM 103 Lab Exam 5 – Portage Learning
Last document update:
ago
CHEM 103 Lab Exam 5 – Portage Learning . According to Boyle’s law, as the volume of a gas decreases, the

pressure _________.

3. (6 points) A sample of gas occupies a volume of 10.5 L when the pressure

is 14.3 psi. Use Boyle’s Law to calculate the volume (L) when the pressure is

decreased to 12.8psi. Show the calculation.

Answer:

1. A syringe was used, and the volume was read from the graduation

markings.
CHEM 103 Lab Exam 4 – Portage Learning. How much heat was gained by the tap water if the specific heat of water is

4.18 J/K-g?

2. (3 points) In one experiment in the video, HCl was mixed with another

substance. What other substance was mixed with HCl?

3. (4 points) One student conducts an acid-base reaction where he finds the

following results. What is the enthalpy of the reaction (in KJ/mol)?

Heat gained by solution 3875 J
CHEM 103 Lab Exam 4 – Portage Learning
Last document update:
ago
CHEM 103 Lab Exam 4 – Portage Learning. How much heat was gained by the tap water if the specific heat of water is

4.18 J/K-g?

2. (3 points) In one experiment in the video, HCl was mixed with another

substance. What other substance was mixed with HCl?

3. (4 points) One student conducts an acid-base reaction where he finds the

following results. What is the enthalpy of the reaction (in KJ/mol)?

Heat gained by solution 3875 J
CHEM 103 Module 3 Exam Portage Learning 2023. NH4Cl is being dissolved in water and this process is being studied in a styrofoam coffee cup

with a lid and the heat absorbed is measured by means of a thermometer immersed in the

reaction mixture. Enter the correct thermochemistry term to describe the item listed.

1. The type of thermochemical process

2. The air above the cup

Your Answer:

1) endothermic

2) Surroundings

1. Heat absorbed = Endothermic process

2. The air above the cup = Surro...
CHEM 103 Module 3 Exam Portage Learning 2023
Last document update:
ago
CHEM 103 Module 3 Exam Portage Learning 2023. NH4Cl is being dissolved in water and this process is being studied in a styrofoam coffee cup

with a lid and the heat absorbed is measured by means of a thermometer immersed in the

reaction mixture. Enter the correct thermochemistry term to describe the item listed.

1. The type of thermochemical process

2. The air above the cup

Your Answer:

1) endothermic

2) Surroundings

1. Heat absorbed = Endothermic process

2. The air above the cup = Surro...
CHEM 103 Module 3 Exam with Answers – Portage Learning
Exam (elaborations) • 9
pages
• 2023
CHEM 103 Module 3 Exam with Answers – Portage Learning. The calorimeter and mixture of HCl + NaOH

Your Answer:

1. The type of thermochemical process is an acid base reaction or

neutralization reaction where heat is given off called a exothermic reaction.

2. The calorimeter and mixture of HCl + NaOH would be described as

enthalpy or the total energy of the system.

1. Heat given off = Exothermic process

2. With lid = closed system

Question 2

Not yet graded / 10 pts

Click this link to a...
CHEM 103 Module 3 Exam with Answers – Portage Learning
Last document update:
ago
CHEM 103 Module 3 Exam with Answers – Portage Learning. The calorimeter and mixture of HCl + NaOH

Your Answer:

1. The type of thermochemical process is an acid base reaction or

neutralization reaction where heat is given off called a exothermic reaction.

2. The calorimeter and mixture of HCl + NaOH would be described as

enthalpy or the total energy of the system.

1. Heat given off = Exothermic process

2. With lid = closed system

Question 2

Not yet graded / 10 pts

Click this link to a...
CHEM 103 Module 1 Exam Questions and Answers. Convert 8.32 x 102 = positive exponent = larger than 1, move decimal 2

places = 832

2. Click this link to access the Periodic Table. This may be helpful

throughout the exam.

Using the following information, do the conversions shown below, showing all

work:

1 ft = 12 inches 1 pound = 16 oz 1 gallon = 4 quarts

1 mile = 5280 feet 1 ton = 2000 pounds 1 quart = 2 pints

kilo (= 1000) milli (= 1/1000) centi (=

1/100) deci (= 1/10)

1. 350 pounds = ...
CHEM 103 Module 1 Exam Questions and Answers
Last document update:
ago
CHEM 103 Module 1 Exam Questions and Answers. Convert 8.32 x 102 = positive exponent = larger than 1, move decimal 2

places = 832

2. Click this link to access the Periodic Table. This may be helpful

throughout the exam.

Using the following information, do the conversions shown below, showing all

work:

1 ft = 12 inches 1 pound = 16 oz 1 gallon = 4 quarts

1 mile = 5280 feet 1 ton = 2000 pounds 1 quart = 2 pints

kilo (= 1000) milli (= 1/1000) centi (=

1/100) deci (= 1/10)

1. 350 pounds = ...