12/14/17

four times the sum of y and three is -1
four  times the sum of y and three is -1  
Follows • 3
Expert Answers •2

12/13/17

Mol STP Chemistry
Calculate the volume, in liters, occupied by 1.45 mol of oxygen gas at STP.
Follows • 3
Expert Answers •2

12/13/17

what volume of 0.50 N NaOH is required to neutralize 50 mL of a 0.35 N acidic solution?
I think a formula for this is Va x Na=Vb x Nb
Follows • 2
Expert Answers •1

12/13/17

Formula Mass
  Calculate the formula mass of each compound given below. Keep at least one decimal place in atomic masses from the periodic table.   a) H2S2   b) HClO3
Follows • 2
Expert Answers •1

12/13/17

Mass of a Solute
The mass of solute per 100 mL of solution is abbreviated as (m/v). Mass is not technically the same thing as weight, but the abbreviation (w/v) is also common. How many grams of sucrose are needed... more
Follows • 2
Expert Answers •1

12/13/17

You have 59.736 mol of CO2, convert moles of CO2 produced by propane to moles of coal
balanced chemical equation for the combustion of propane:   2C3H8 + 10O2--> 6CO2 + 8H2O   Grams of propane converted to moles of propane = 199.12 moles propane   Moles of propane converted... more
Follows • 2
Expert Answers •1

12/13/17

how to graph y=1/4x+2
how to graph y=1/4x+2       idk how
Follows • 2
Expert Answers •1

12/13/17

How many grams of sugar must be added to 60 grams of a solution that is 32% sugar to obtain a solution that is 50% sugar?
 This made my whole class confused and even my teacher. So I asked and I get extra credit if I can solve it
Follows • 3
Expert Answers •1

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

12/13/17

Elsa drove 871 miles in 13 hours. At the same rate, how long would it take her to drive 737 miles?
homework help
Follows • 3
Expert Answers •2

12/13/17

How long does it take for a one-kilometre-long train going at 60km per hour to go through an eight kilometre long tunnel? Give your answer in minutes
Why is the answer (8km+1km)/60km x 60minute ? Why not  8km/60km x 60minute? Where does the extra 1 km come from?
Follows • 3
Expert Answers •2

12/13/17

A file that is 238 megabytes is being downloaded. If the download is 18.3% complete, how many megabytes have been downloaded? Round your answer to the neare
homework pls help
Follows • 2
Expert Answers •1

12/13/17

Hans drove 693 miles in 11 hours. At the same rate, how many miles would he drive in 9 hours?
i need help with homework
Follows • 2
Expert Answers •1

12/12/17

How are the processes of mitosis and meiosis similar to each other?
i need help  
Follows • 2
Expert Answers •1

12/12/17

A beaker contains 6mL of a chemical tht is 35% glycine, an important amino acid. How much of a another chemical that is 50% glycine should be added, so that the
resultant chemical is 46% glycine? 
Follows • 2
Expert Answers •1

12/12/17

The van't Hoff factor for KCl, KBr and KI.... different or same? Experimental and NOT Theoretical
The van't Hoff factor for KClThe van't Hoff factor for KBrThe van't Hoff factor for KIare NOT equal to each other!!!My student is determining them experimentally expecting the same answersWhy they... more
Follows • 2
Expert Answers •1

12/12/17

A Zn wire and Ag/AgCl reference electrode (E° = 0.197 V) are placed into a solution of ZnSO4.
A Zn wire and Ag/AgCl reference electrode (E° = 0.197 V) are placed into a solution of ZnSO4. The Zn wire is attached to the positive terminal and the Ag/AgCl electrode is attached to the negative... more
Follows • 2
Expert Answers •1

12/12/17

How many moles of O2 are required to react with 0.380 moles of C6H6?
2C6H6 + 15O2 --> 12CO2 + 6H2O
Follows • 2
Expert Answers •1

12/11/17

A sample of SO2 gas has a volume of 1.16 L at a temperature of 23° C. At what temperature will the gas have a volume of 1.25 L ?
Chemistry problem  Formula: (Gay-Lussacs Law) P1/T1=P2/T2
Follows • 2
Expert Answers •1

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

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

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

12/11/17

i need to know how to solve this chem question!?
Gold costs $1250/oz. how many atoms of gold can you buy with two pennies. 1oz = 31.1g
Follows • 2
Expert Answers •1

12/11/17

The infrared light emitted from a TV remote has a wavelength of 805 nm. What is the energy of the light emitted from the remote
What is the energy emitted?
Follows • 3
Expert Answers •2

12/10/17

At a certain temperature, this reaction establishes an equilibrium with the given equilibrium constant, Kc.  
At a certain temperature, this reaction establishes an equilibrium with the given equilibrium constant, Kc. 3A(g) + 2B(g) <------> 4C(g) Kc= 2.13x 10^17 If, at this temperature, 2.40 mol of... 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.