638 Answered Questions for the topic AP chemistry

Ap Chemistry Science Chemistry Physics

01/14/18

How do I solve this problem on methyl salicylate and methyl 4-hydroxybenzoate?
Methyl salicylae has a melting point of -8°C.   methyl 4-hydroxybenzoate, another molecule with the exact  same molecular formulabhas a melting point of 127°C.   Why is there such a large... more
Follows • 2
Expert Answers •1
Ap Chemistry Science Chemistry Physics

01/13/18

Can you help me with this problem on diethyl ether?
Diethyl ether was one of the first chemicals used as an anesthetic. At 34.6°C, diethyl ether has a vapor pressure of 760 torr, and at 17.9°C, it has a vapor pressure of 400 torr. What is the heat... more
Follows • 2
Expert Answers •1

01/13/18

What role does humidity play in how our bodies regulate temperature?
A common response hearing that the temperature in New Mexico is 105°F is, "It's not that bad; it's a dry heat", whereas at the same time, the summers in Atlanta, Georgia are the characterized as... more
Follows • 2
Expert Answers •1

01/13/18

How does evaporation of alcohol remove heat energy from a person's body?
When a person has a severe fever, one therapy used to reduce the fever is an "alcohol rub". Explain how the evaporation of alcohol from a person's skin removes heat energy from the body.
Follows • 1
Expert Answers •1
Ap Chemistry Science Chemistry Physics

01/13/18

Can you help me with this problem on Xenon?
Consider the following data for Xenon:   Triple point: -121°C, 280 torr Normal melting point: -112°C Normal boiling point: -107°C   Which is more dense, liquid or solid Xe? How do the melting... more
Follows • 1
Expert Answers •1
Ap Chemistry Math Science Chemistry

01/13/18

How do I solve this AP Chemistry problem on melting point and phase change?
The melting point of a fictional X is 225°C at 10.0 atm. If the density of the solid phase of X is 2.67 g/cm^3 at 10.0 atm. And the density of the liquid phase is 2.78 g/cm^3 at 10.0 atm. Predict... more
Follows • 1
Expert Answers •1
Ap Chemistry Science Chemistry Physics

01/11/18

How do I solve this Chemistry problem on Phase Changes?
The molar heat of fusion of sodium metal is 2.60 kJ/lol, but it's heat of vaporization is 97.0 kJ/lol   A. Why is its heat of vaporization so much larger than the heat of fusion?   B. What... more
Follows • 2
Expert Answers •1
Ap Chemistry Science Chemistry Physics

01/11/18

How do I calculate the normal boiling point of CCl4?
CCl4 has a vapor pressure of 213 torr at 40°C and 836 torr at 80°C. What is the normal boiling point  CCl4?
Follows • 2
Expert Answers •1
Ap Chemistry Math Science Chemistry

01/11/18

How do I calculate the boiling point of water at a specific atmospheric pressure?
In Breckenridge, Colorado, the typical atmospheric pressure is 520 tore. What is  the boiling point of water in Breckenridge? Delta H (vaporization)= 40.7 kJ/mol.
Follows • 2
Expert Answers •1
Ap Chemistry Science Chemistry

01/10/18

How do I solve this AP Chemistry problem?
A certain metal fluoride crystallized in such  a way that the fluoride ions occupy simple cubic Latrice sites, while the metal ions occupy the body centers of the half cubes. What is the formula of... more
Follows • 2
Expert Answers •1
Ap Chemistry Chemistry

12/28/17

AP Chemistry Spectra
The link below is an image that is to be used to help solve the problem: https://prnt.sc/hsqdao   The question is as follows: The above mess spectra is for the hypochlorite ion, CLO-. Oxygen... more
Follows • 1
Expert Answers •1
Ap Chemistry Chemistry Orbitals

12/26/17

AP Chemistry Orbital Diagram of Neutral Oxygen Atom
The link below correlates to the question: http://prntscr.com/hsqjdg   I already filled out the diagram (A) I am just having difficulty answering the question:   (B) Using your diagram above,... more
Follows • 3
Expert Answers •2

12/26/17

AP Chemistry PES
The link below is the picture that correlates with the question: http://prntscr.com/hsqi56   Here's the question:   The above PES belongs to a neutral chlorine atom   (A) What wavelength of... more
Follows • 2
Expert Answers •1
Ap Chemistry Chemistry Chem

12/24/17

AP Chemistry Question
Which of the following statements best explains why phosphorus ions tend to have a charge of -3?   (A) Phosphorus atoms want to gain 3 electrons in order to fill their p-subshell (B) Phosphorus... more
Follows • 2
Expert Answers •1
Ap Chemistry Chemistry Chem

12/24/17

Which type of radiation would be most useful in examining the dimensionality of molecules?
(A) Ultraviolet (B) Visible (C) Infrared (D) Microwave
Follows • 3
Expert Answers •1
Ap Chemistry

12/13/17

if an organic compound has an empirical formula of C2H3O2
has an empirical formula of C2H3O2 and its molar mass is 118.1 g/mol what is the molecular formula of the compound? and the empirical formula of the compound if it is an organic compound.
Follows • 2
Expert Answers •1
Ap Chemistry Science Chemistry Physics

12/11/17

How do I solve this light/energy problem?
In the investigation of the electronic absorption spectrum of a particular element, it is found that a photon having a wavelength  of 500nm provides just enough energy to promote an electron from... more
Follows • 3
Expert Answers •2
Ap Chemistry Science Chemistry

12/11/17

Can you help me with this word problem on heat?
Mrs. Smith is having a few friends over for dinner and making iced tea, but she finds that she is out of ice. She finds that she has five aluminum bars in the freezer and decides to use them to... more
Follows • 2
Expert Answers •1
Ap Chemistry Science Chemistry Physics

12/11/17

KClO3(s) produces KCl and O2 when heated. 2.34L of O2 was collected over water at 9878mmHg at 65°C. What mass of KClO3 reacted?
How do I solve this AP Chemistry problem?
Follows • 2
Expert Answers •1
Ap Chemistry Science Chemistry Physics

12/11/17

How do I calculate what mass of CO2 can be by mixing 2.34g of C2H5OH with 5.6L oxygen at 78°F
The reaction occurs at 900 mmHg and the formula for the reaction is: C2H5OH+O2===> CO2+H2O
Follows • 3
Expert Answers •2
Ap Chemistry Science Chemistry Physics

12/11/17

Can you help me with this gas law problem?
What volume will 1.23g of CO2 occupy at 45°C and 678 mmHg?
Follows • 2
Expert Answers •1
Ap Chemistry Science Chemistry

12/07/17

How do I solve this Chemistry problem?
How many mL of 2.50M HNO3 contain enough nitric acid to dissolve an old copper penny with a mass of 3.94 grams?   The equation for this reaction is:   3Cu (s)+ 8HNO3 (aq)===> 3Cu (NO3)2... more
Follows • 2
Expert Answers •1
Ap Chemistry Science Chemistry

12/03/17

How do I use the localized electron model to describe the bonding in the following compounds?
H2O CCl4 H2CO C2H2
Follows • 2
Expert Answers •1
Ap Chemistry Math Science Chemistry

11/27/17

Can you help me with this exothermic lattice energy problem?
How do I determine which of the following pairs of ionic substances has the most exothermic lattice energy?   A. LiF, CsF  B. NaBr, NaI  C. BaCl2, BaO  D. Na2SO4, CaSO4  E. KF, K2O  F. Li2O,... more
Follows • 2
Expert Answers •1
Ap Chemistry Math Science Chemistry

11/25/17

Can you help me with this Chemical Bonding problem?
How do I figure out which noble has had the same electron configuration as each of the ions in the following compounds?   A. Cesium sulfide  B. Strontium fluoride  C. Calcium nitride  D.... more
Follows • 2
Expert Answers •1

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.