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
xz_007 [3.2K]
3 years ago
11

If the vapor's volume were to be incorrectly recorded as 125ml, how will this error affect the calculated molar mass of the unkn

own?
Chemistry
1 answer:
pishuonlain [190]3 years ago
3 0
Since you didn't give the actual volume (or any of the experimental values) I can only tell you how to do it. Do the calculation using the real (determined) volume of the flask. Then, re-do the calculation with v = 125ml. Take the two values and calculate % error; m = measured vol; g = guessed vol. 

<span>[mW (m) - mW (g)]/mW (m) x 100% </span>

<span>(they want % error so, if it is negative, just get rid of the sign) </span>
You might be interested in
______Is analyzed by qualitative methods
Serga [27]

Answer:

A. The identify of the poison used in a murder.

Explanation:

4 0
3 years ago
HELP HELP HELP HELP!!!!!!
suter [353]

Answer:

I think it is 100 if I guess

8 0
3 years ago
A proton travels at a speed of 2.0 × 106 meters/second. Its velocity is at right angles with a magnetic field of strength 5.5 ×
Finger [1]

So here we are given that the the velocity of the proton ( V ) is 2.0 × 10^6 meters / second, with a magnetic field of strength 5.5 × 10^{-3}  tesla. If they each form a right angle, they are hence perpendicular to one another, such that ....

F = q( V × B ),

F = q v B( sin ∅ ),

F = q v B( sin( 90 ) )

.... they form the following formula. Let's go through each of the variables in our formula here -

{ F = Magnetic Force ( which has to be calculated ), q = charge of proton (has charge of 1.602 × 10^{19} coulombs ), B = magnetic field }

All we have to do now is plug and chug,

F = ( 1.602 × 10^{19} )( 2.0 × 10^6 )( 5.5 × 10^{-3} ) = ( About ) 1.8 × 10^{-15} Newtons

6 0
4 years ago
You and your lab partner are asked to determine the density of an aluminum bar. The mass is known accurately to 4 significant fi
zmey [24]

Answer:

Average density for method A = 2.4 g/cm³

Average density for method B = 2.605 g/cm³

Explanation:

In order to calculate the average density for each method, we need to add the data for each method, and then divide the result by the number of measurements (in this case is 4 for both methods):

  • For Method A:

Σ = 2.2 + 2.3 + 2.7 + 2.4 = 9.6

Average = 9.6/4 = 2.4 g/cm³

  • For Method B:

Σ = 2.603 + 2.601 + 2.605 + 2.611 = 10.420

Average = 10.420/4 = 2.605 g/cm³

5 0
3 years ago
What is the most basic level of biological organization?
Brums [2.3K]

Answer:

molecule

Explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • Which sample of matter has a crystal structure?
    9·1 answer
  • What is the volume of an object with a mass of 11.5 g and a density of 1.3 g/mL?
    8·1 answer
  • How many milliliters of pure liquid methanol (ch3oh, mw = 32.04 g/mol) are needed to prepare 500.0 ml of an aqueous solution of
    14·1 answer
  • A galvanic cell is based on the following half-reactions at 279 K: Ag+ + e- → Ag Eo = 0.803 V H2O2 (aq) + 2 H+ + 2 e- → 2 H2O Eo
    14·1 answer
  • 13 protons , 14 neutrons, and 10 electrons what is the overall charge
    12·2 answers
  • Which is not a property of a gas? * exert pressure high density High compressibility readily soluble
    5·1 answer
  • Someone help me with this question with steps please!!!
    12·2 answers
  • In which cell organelle does photosynthesis take place?
    13·1 answer
  • What is the name for the process of maintaining a stable environment within a cell?
    9·2 answers
  • Which type of substance can separated using a centrifuge?<br>​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!