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
Orlov [11]
3 years ago
15

A student carefully pipets 10.00ml of ethanol into a beaker. If ethanol has a density of 0.779g/ml, how many grams of ethanol we

re put into the beaker?
Chemistry
1 answer:
lesantik [10]3 years ago
5 0

Answer: 7.79 grams of ethanol were put into the beaker.

Explanation:

To calculate the mass of ethanol, we use the equation:

\text{Density of substance}=\frac{\text{Mass of substance}}{\text{Volume of substance}}

Density of ethanol = 0.779 g/mL

Volume of water = 10.00 mL

Putting values in above equation, we get:

0.779g/mL=\frac{\text{Mass of ethanol}}{10.00mL}\\\\\text{Mass of ethanol}=(0.779g/mL\times 10.00mL)=7.79g

Thus 7.79 grams of ethanol were put into the beaker.

You might be interested in
A typical person has an average heart rate of 75.0 beats/min. Calculate the following a)How many beats does she have in 7.0 year
hram777 [196]

Let us first convert years to minute.

7 years * (365 days / year) * (24 hours / day) * (60 minutes / hour) = 3,679,200 minutes

 

a. beats = 75.0 beats/min * 3,679,200 minutes

beats = 275,940,000 beats

Since the original given is 7.0 years (2 significant figures), therefore:

beats = 270,000,000 beats

 

b beats = 75.0 beats/min * 3,679,200 minutes

beats = 275,940,000 beats

Since the original given is 7.000 years (4 significant figures), therefore:

<span>beats = 275,900,000 beats</span>

5 0
3 years ago
Read 2 more answers
In Universe L, recently discovered by an intrepid team of chemists who also happen to have studied interdimensional travel, quan
lidiya [134]

Answer:

Second element(Titanium); [Ar] 3d2 4s2

Third element(Vanadium):Ar 3d3 4s2

Explanation:

Given that there are only three d orbitals in universe L instead of five, the electronic configuration of the second and third elements in the first transition series will now look thus;

Second element(Titanium); [Ar] 3d2 4s2

Third transition element(Vanadium):Ar 3d3 4s2

Hence, the electronic configuration of Titanium and Vanadium in universe L is just the same as what it is on earth.

6 0
3 years ago
1,645.6 expressed in scientific notation equals?
12345 [234]
1.6456 x 10^3 (ten to the third power)
8 0
3 years ago
Read 2 more answers
If an oxygen has 1s2 2s2 2p4 , how many more electrons should it have to be octet .
Maru [420]

Answer:

14

Explanation:

8 0
3 years ago
Which of the following is made of matter<br><br> A. table B. tree C. pencil D. All of the above
dybincka [34]

Answer:

The answer is D) all of the above

Explanation:

This is because if something has mass then it is composed of matter.

Can I have brainliest please?

4 0
3 years ago
Read 2 more answers
Other questions:
  • Waters states of matter include steam liquid water and ice. What about water is the same in the states? What can you conclude ab
    8·1 answer
  • A student mixes 33.0 mL of 2.70 M Pb ( NO 3 ) 2 ( aq ) with 20.0 mL of 0.00157 M NaI ( aq ) . How many moles of PbI 2 ( s ) prec
    7·1 answer
  • How many hydrogen atoms are in CH2OH?<br><br> a-10<br> b-3<br> c-5<br> d-4
    15·2 answers
  • Is mixing sodium and water a physical or a chemical change
    14·1 answer
  • What do cilia and flagella have in common?
    13·1 answer
  • 3. Sugar solution(sugar + water) is a homogeneous mixture and sugar can be separated from water through evaporation .Comment.
    13·2 answers
  • What is the effect of channeling on performance of packed towers?​
    9·1 answer
  • Which statement(s) is/are TRUE about covalent bonds?
    14·1 answer
  • The angle formed by the nuclei of two surrounding atoms with the nucleus of the central atom in a structure is called a(n) _____
    13·1 answer
  • What is potential energy?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!