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
snow_tiger [21]
2 years ago
9

14) How many molecules are there in 9.34 kg of water?

Chemistry
1 answer:
madreJ [45]2 years ago
8 0

Answer:

Water has 18 grams per mole so 9 grams is 0.5 moles of water. There are 6.022* 10^23 molecules in a mole. Each water molecule contains one oxygen and two hydrogens.

You might be interested in
For work to be done on an object:
Mazyrski [523]

Answer:

The object has to move a distance when a force is applied to it

Explanation:

For work to be done on a body the force applied must move the body through a particular distance.

  Work done  = Force x distance  

If no distance is moved by the force, no work is done.

Also, the angle between the force and the distance must be 0 to do the maximum work on the body.

8 0
3 years ago
one bottle of aspirin holds 250 tablets, each containing 150 mg of aspirin and sells for $2.95. Another bottle holds 125 tablets
AlladinOne [14]
I bottle:

250 * 150mg = 37500mg

If 37500mg ------- cost ------- <span> $2.95
so 1mg       ------- cost ------- x

x = 1mg*</span> $2.95 / 37500mg =  $7,87*10⁻⁵ 

II bottle

125 * 200mg = 25000mg

If 25000mg ---------- cost ---------- <span>$3.50
so 1mg       ---------- cost ---------- x

x = 1mg* </span>$3.50 / 25000mg = $0,00014=$1,4*10⁻⁴


$7,87*10⁻⁵  < $1,4*10<span>⁻⁴
</span>
1st bottle is better bargain cause 1mg of aspirin its cheaper than in 2nd.
7 0
2 years ago
A water bath in a physical chemistry lab is 1.75 m long, 0.730 m wide, and 0.650 m deep. If it is filled to within 2.27 inches f
german
It is 0.720 meters cause if the manufacturers of liters contain 2.27 inches it would make a deeply filled of 0.660
7 0
3 years ago
Read 2 more answers
Why is the melting point of hydrogen flourine abnormally higher than other halogen acids.​
Tems11 [23]

"The other halogens are not as electronegative and so other hydrogen halides cannot form hydrogen bonds between molecules. Only London Forces are formed. - Therefore more energy is required to break the intermolecular forces in HF than the other hydrogen halides and so it has a higher boiling point."

not a hack link, just stating where i got your answer from! -

https://www.mytutor.co.uk/answers/17558/A-Level/Chemistry/Explain-the-unusually-high-boiling-point-of-HF/

8 0
2 years ago
Element A has 15 protons. Determine the number of neutrons in its isotope with mass number 33.
mario62 [17]
33 - 15 = 18
This element is P-33 
7 0
3 years ago
Other questions:
  • A 12.00 g milk chocolate bar is found to contain 8.000 g of sugar. What will be the amount of sugar in milligrams if the size of
    12·2 answers
  • What process must happen before this process depicted below?
    5·2 answers
  • In the field of chemistry, standard temperature and pressure conditions are:
    11·2 answers
  • A volume of 30.0 mL of a 0.140 M HNO3 solution is titrated with 0.570 M KOH. Calculate the volume of KOH required to reach the e
    5·1 answer
  • indicators are chemicals that change colour in presence of an acid or an alkali. Universal indicators and pH meters are used to
    10·1 answer
  • Which of these is an element?<br> A)air <br> B)Carbon dioxide(CO2)<br> C)water(H20)<br> D)carbon(c)
    15·1 answer
  • What phase(s) would you expect to observe when the substance is at a temperature of 275 kelvin?
    8·1 answer
  • A stick of butter is melted in a saucepan. As it continues to cook, the butter turns brown. What changes have occurred?
    9·2 answers
  • Which of these travels fastest in vacuum?
    9·2 answers
  • What is the new concentration of a solution after 250mL of 2.5M sulfuric acid is diluted to a final volume of 700mL?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!