09/07/19

Calculate the density, in g/mL, of a 0.070 kg, 0.80 cL substance.

Follows • 1
Expert Answers •1

09/07/19

Kaleb had 136 songs on his MP3 player. If he deleted 84 songs, what is the ratio of songs he kept to songs he deleted?
Follows • 1
Expert Answers •1

09/06/19

Convert a speed of 393 mi/h to units of feet per minute. Also, show the unit analysis by dragging components into the unit‑factor slots.
Convert a speed of  to units of feet per minute. Also, show the unit analysis by dragging components into the unit‑factor slots.
Follows • 1
Expert Answers •1

09/06/19

chemistry question
A  5.80g sample of a solid containing Ni  is dissolved in 20.0 mL water. A 5.00 mL aliquot of this solution is diluted to 100.0 mL and analyzed in the lab. The analyzed solution was determined to... more
Follows • 1
Expert Answers •1

09/06/19

The temperature of 1500 g of ethanol is 37°C. What will the final temperature be if 80,000 J of energy as heat is added to the enthanol? Ethanol has a specific heat of 2.44 J/g°C.
The temperature of 1500 g of ethanol is 37°C. What will the final temperature be if 80,000 J of energy as heat is added to the enthanol? Ethanol has a specific heat of 2.44... more
Follows • 2
Expert Answers •2

09/05/19

In an aqueous solution acids ________.
n an aqueous solution acids ________. Answer: a) are proton donors b)are proton acceptors c)produce hydronium ions d)produce hydroxide ions e)both a and c both b and d
Follows • 2
Expert Answers •2

09/05/19

What would be the hydroxide ion concentration of a solution with a pH of 2.3?
Follows • 2
Expert Answers •1

09/05/19

What would be the hydronium ion concentration of a solution with a pH of 8.1?
Follows • 2
Expert Answers •1

09/05/19

A substance with a hydroxide ion concentration of 1.55 x 10-9 M will have a pH of ______.
Follows • 2
Expert Answers •1

09/05/19

A substance with a hydronium ion concentration of 3.44 x 10-8 M will have a pH of _____.
Follows • 2
Expert Answers •1

09/05/19

How many pounds are in a kg
Follows • 1
Expert Answers •1

09/05/19

How many seconds are in a fortnight

Follows • 2
Expert Answers •1

09/05/19

What will be the average density for a sample of metal with a mass of 12.6 g and volume calculations of 6.1 mL and 9.5 cm3 ? Omit units in the answer and report answer to one decimal place.
What will be the average density for a sample of metal with a mass of 12.6 g and volume calculations of 6.1 mL and 9.5 cm3 ?Would I take 12.6g/6.1ml=2.0712.6g/9.5 cm3=1.33then take (2.07+1.33)/2=... more
Follows • 1
Expert Answers •1

09/05/19

What is the mass of a metal sample with a volume of 8.6 mL and a density of 7.7 g/mL? Include units and one decimal place in answer.
How do I set this equation up?
Follows • 2
Expert Answers •2

09/05/19

While driving your rental car on your vacation in Europe, you find that you are getting 13.9 km/L of gasoline. What does this value correspond to in miles per gallon?
While driving your rental car on your vacation in Europe, you find that you are getting  km/L of gasoline. What does this value correspond to in miles per gallon?
Follows • 2
Expert Answers •2

09/05/19

how much heat is required to raise the temperature of 475 grams of solid aluminum from room temperature (295 K) to liquid aluminum at 1050K? aluminum melts at 933.47 K
Follows • 2
Expert Answers •2

09/05/19

If 58 grams of Calcium Carbonate is made to react with 40g sulphuric acid, the weight of calcium sulfate obtain is 48 grams. CAlculate the theoretical yield of Calcium Sulfate.

Follows • 2
Expert Answers •3

09/05/19

Fusion of protium and tritium
Follows • 1
Expert Answers •2

09/05/19

Chemistry Practice Problem Help?? (University)
Q: 1.00 L of octane (C8H18, M=114.23 g/mol, d= 0.703 g/cm^3) undergoes a combustion reaction with 5.00L of oxygen at 25 degrees celcius and 1.00 atm pressure. What mass of carbon dioxide (M=44.01... more
Follows • 2
Expert Answers •1

09/05/19

What is the mass percent of sand in a mixture of 5.9 g of sand in 3.2 g of water?

Follows • 1
Expert Answers •1

09/04/19

chemistry help needed
PLEASE HELP!! I'm so confused.1. Use the equation for the energy of the electron in the Bohr model of the atom and the fact that hxR = 2.180e-18 J to calculate the energy of an electron in the... more
Follows • 1
Expert Answers •1

09/04/19

Can someone please show me how to solve these? Thanks!
1.) A 14.3-cm3 sample of tin has a mass of 0.100kgdensity= _____g/mL2.) a bottle of acetone contains 55.0ml of acetone with a mass of 43.3g density=_______g/ml
Follows • 1
Expert Answers •1

09/04/19

Chemistry question, equation about a experiment how many miles

Hi I need help with question 46 and 47 thank you Sodium thiosulphate (Na2S2O3) (a solid) was reacted with 500cm3 of hydrochloric acid in solution to form a precipitate (sulphur). The rate of this... more
Follows • 1
Expert Answers •1

09/04/19

chemistry homework

3H2(g) + N2(g)→2NH3(g)How many moles of NH3 can be produced from 29.0 mol of H2 and excess N2?
Follows • 1
Expert Answers •1

09/04/19

Suppose the initial amount of N2O5 in an experiment is 64 g.  What mass (g) remains after four half-lives?
N2O5(g)     2 NO2(g)  +  ½ O2(g) N2O5 decomposes by a first-order reaction.  Suppose the initial amount of N2O5 in an experiment is 64 g.  What mass (g) remains after four half-lives?
Follows • 3
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.