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
vfiekz [6]
3 years ago
12

In the manufacturing of computer chips, cylinders of silicon are cut into thin wafers that have a mass of

Chemistry
1 answer:
german3 years ago
3 0

Answer:

0.0714 mole

Explanation:

Data obtained from the question include:

Mass of Si = 2g.

The number of mole of silicon can be obtained as follow:

Molar mass of Si = 28g/mol

Mass of Si = 2g

Number of mole Si =..?

Number of mole = Mass /Molar Mass

Number of mole of Si = 2/28

Number of mole of Si = 0.0714 mole

Therefore, the number of mole of silicon in the computer chip is 0.0714 mole

You might be interested in
What type of matter is gravel
GREYUIT [131]

Gravel is a solid, opaque, heterogenous mixture.

5 0
3 years ago
Mannitol salt agar is defined as both a selective and a differential agar since it selects against non-halophiles and allows the
viktelen [127]

Answer: The above statement is true

Explanation:

Mannitol salt agar is a medium which contain high concentration of salt,about 7.5%-10%. It is commonly used as a selective and differential growth medium.Because of its high concentration of salt,it inhibits growth if non halophiles(as they only grow best in media containing less tha 0.2M salts). If the bacteria can ferment mannitol,an acidic byproduct is formed which turns phenol red agar into yellow.So only those bacteria grow well which can ferment mannitol.

8 0
3 years ago
Steven had a sample of ethanol and wanted to see if it would boil at the temperature found in his textbook. His experiment yield
Natasha_Volkova [10]

Answer:

17.04%

Explanation:

Actual Value = 173.1

Measured Value = 143.6

Percent error is obtained using the equation;

Percent error = (Measured - Actual) / Actual ]* 100

Percent error = [ (143.6 - 173.1) / 173.1 ] * 100

The absolute value of (Measured - Actual) is taken,

Percent Error = [29.5 / 173.1 ] * 100

Percent Error = 0.1704 * 100 = 17.04%

4 0
3 years ago
I need help please!!!!!!!!!!!!!!!!!
AleksAgata [21]

Answer:I think its both

Explanation:

7 0
3 years ago
The quantity, 1,385 mg is equivalent to in scientific notation
Agata [3.3K]

Answer:

The answer is 1385 x10∧ -3

Explanation:

Scientific notation is a quick way to represent a number using notation in exponential form or powers of base ten.

This notation allows us to express too large or small numbers easily.

<u>For example: </u>

500 is written as 5x10∧2; Where the power 2 represents the number of 0's that follow 5.

0.0093 is written as 9.3x10∧-3; Where the power -3 represents the number of times the comma was moved to the right.

8 0
3 years ago
Other questions:
  • 34 What is the gram-formula mass of Fe(NO3)3?(1) 146 g/mol (3) 214 g/mol
    8·1 answer
  • A 24.0 gram object has a volume of 6.0 mL. What is the density of the object?
    15·2 answers
  • Write empirical formula
    9·1 answer
  • Identify and name the functional group present<br> CH4
    8·1 answer
  • Carbon and fluorine have the same shielding effect<br><br> True or False
    7·1 answer
  • Write the electron configuration, the orbital notation, and the noble gas notation for the following elements:
    6·1 answer
  • Which person below is moving the fastest?<br> D<br> A<br> B<br> distance<br> time
    13·1 answer
  • What does the reproductive system control?
    6·1 answer
  • Anyone know this? i’m having trouble...please help.
    9·1 answer
  • Please help fast please please
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!