1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
marshall27 [118]
3 years ago
15

Any help with these questions would help i'm lost

Chemistry
1 answer:
SSSSS [86.1K]3 years ago
5 0

Answer:

1.  31.25 mL

2.  1.98 g/L

3.  0.45 g/mL

Explanation:

For each of the problems, you need to perform unit conversions.  You need to use the information given to you to convert to a specific unit.

1.  You need volume (mL).  You have density (g/mL) and mass (g).  Divide mass by density.  You will cancel out mL and be left with g.

(50.0 g)/(1.60 g/mL) = 31.25 mL

2.  You are given grams and liters.  You need to find density with units g/L.  This means that you have to divide grams by liters.

(0.891 g)/(0.450 L) = 1.98 g/L

3.  You have to find density again but this time with units g/mL.  Divide the given mass by the volume.

(10.0 g)/(22.0 mL) = 0.45 g/mL

You might be interested in
Why is the amount of usable energy lower for anaerobic respiration than for aerobic respiration
photoshop1234 [79]
Anaerobic is when there is not enough oxygen for aerobic respiration, so it uses glucose and lactic acid for example instead of glucose and oxygen for aerobic. Anaerobic takes longer to convert to energy. 
3 0
3 years ago
What is cis-3-Hexene?
valentinak56 [21]

cis-3-Hexene is a symmetrical cis-disubstituted alkene that can be prepared by the hydroboration of 3-hexyne followed by protonolysis

I got this from Sigmaaldrich.com.

Not my work.

Hope it helps

7 0
3 years ago
An atom has atomic number 5 and mass number 11. How many protons does the atom have? 5 6 10 11
spin [16.1K]

Answer:

6 neutrons. The mass number is the number of protons and neutrons in the nucleus of an atom. The atomic number shows how many protons. Subract the atomic number from the mass number to find the number of neutrons.

Explanation:

6 0
3 years ago
Read 2 more answers
A chemist dissolves 239 mg of pure potassium hydroxide in enough water to make up of solution. Calculate the pH of the solution.
PSYCHO15rus [73]

Answer: the pH is 11.78

Explanation:Please see attachment for explanation

7 0
3 years ago
Find the appropriate number of significant figures
xz_007 [3.2K]

Answer:

Non-zero digits are always significant

8 0
1 year ago
Other questions:
  • Which acceleration will a 20 Newton force cause if applied to a go kart with a 20 kilogram mass? 1 m/s, 20m/s, 10 m/s, 2 m/s
    9·1 answer
  • 15 PTS!!! PLEASE HELP ASAP I REALLY DONT UNDERSTAND IT! BRAINLIEST!
    15·2 answers
  • How many molecules are in 7.90 moles of CH4?
    12·1 answer
  • Out of the following, which has the least amount of mass? A) protons B) none of the above C) electrons D) neutrons
    11·1 answer
  • What is the balance of NH3+HCL=NH4CL+H2O
    11·1 answer
  • HELP PLEASE!!!!!!!
    6·1 answer
  • Which has more mass, one mole of carbon (C) or one mole of copper (Cu)?<br> Explain.
    9·2 answers
  • Find the distance travelled by a train travelling at 140 km/h for 6 hours
    11·1 answer
  • Which step you should take before performing a scientific investigation
    11·1 answer
  • As the rate of physical weathering increases, the amount of chemical weathering also increases because
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!