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
kolezko [41]
3 years ago
6

How many molecules of liquid methanol are in 10.00 mL of methanol, given its density is 0.7918 g/mL?

Chemistry
1 answer:
Xelga [282]3 years ago
7 0
d=0,7918\frac{g}{mL}\\ V=10mL \ \ \ \ \ \ \ \ \ \ \ m=dV=0,7918\frac{g}{mL}*10mL=7,918g\\\\ 6,02*10^{23} \ \ \ \ \ \ \ \Rightarrow \ \ \ \ 32g\\ N_{x} \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \Rightarrow \ \ \ \ 7,918g\\\\ N_{x}=\frac{6,02*10^{23}*7,918g}{32g}\approx1,49*10^{23}
You might be interested in
The visible spectrum of the Cr(acac)3
Sati [7]

Explanation:

The observable visible spectrum of Cr(acac)3 complex is different from that of

[Cr(en)3]Br3 due to strength of bonded ligand in the coordination sphere.

en is a strong field ligand compared to acac thus pairing  occurs. In both the complexes

Cr is in +3 state, configuration [Ar] 3d^3. There are 3 unpaired e in Cr(acac)3 whereas 1 unpaired e in [Cr(en)3]Br3 due to pairing.

3 0
3 years ago
Which is an example of a physical change?
levacccp [35]

Answer:

salt dissolving

Explanation:

Hope this helps!

8 0
2 years ago
Read 2 more answers
What is the best explanation for why a particle is striking point X?
const2013 [10]

Answer:

What is the best explanation for why a particle is striking point X? When the dense, positive alpha particle passes close to a positive nucleus of gold, the alpha particle repels and hits the screen at point X.

Explanation:

thank me later

8 0
3 years ago
Read 2 more answers
In which system does a spontaneous redox reaction produce electrical energy?
Vladimir [108]
Had to look for the options and here is my answer.
When we say that a redox reaction is spontaneous, this would mean that there is a formation of positive voltage <span>across the electrodes of a voltaic cell. Therefore, the system that this kind of reaction produces electrical energy is in a GALVANIC CELL. Hope this helps.</span>
3 0
2 years ago
Physical science!!!please help me !!!
Anestetic [448]

Answer:

number 4

Explanation:

3 0
3 years ago
Other questions:
  • Why is calgon conditioning better than phosphate conditioning?
    6·1 answer
  • What are some interesting facts about Dmitri Mendeleev?
    9·1 answer
  • The formula for sulfuric acid is H2SO4. A mole of sulfuric acid would have a mass of ___ grams.
    7·1 answer
  • How does sulfur’s number of valence electrons influence its behavior toward other atoms?
    8·1 answer
  • What is the electron structure of a beryllium ion with a net ionic charge of +2?
    15·2 answers
  • Which question is most important to developmental psychology?
    9·1 answer
  • Which of the following stages would come first in the life of a star? Neutron star White dwarf Protostar Black hole
    9·1 answer
  • 1. Determine the volume of SO2 (at STP) formed from the reaction of 96.7 mol FeS2 and 55.0 L of O2 at 358 K and 1.20 atm.
    13·1 answer
  • How many moles of ethanol C2H6O, are in a 10.0g sample​
    13·1 answer
  • What is the volume (in liters) of a 5.52 gram sample of O2 at STP?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!