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
Rina8888 [55]
3 years ago
10

How is an atomic mass unit defined?

Chemistry
1 answer:
rusak2 [61]3 years ago
6 0
A unit of mass used to express atomic and molecular weights, equal to one-twelfth of the mass of an atom of carbon-12. It is equal to approximately 1.66 x 10-27<span> kg.</span>
You might be interested in
What happens within clouds and/or within the region between the cloud and Earth that allows for the various forms of precipitati
lesantik [10]
More likely to do whateverrrr they want
5 0
2 years ago
Good morning friends
erik [133]

Answer:

bye have a neautiful time just kidding

3 0
2 years ago
Read 2 more answers
Which type of system must exist for chemical equilibrium
larisa86 [58]

Answer: closed system.

Explanation:

4 0
3 years ago
The normal freezing point of a certain liquid
stepladder [879]

Answer : The molal freezing point depression constant of X is 4.12^oC/m

Explanation :  Given,

Mass of urea (solute) = 5.90 g

Mass of X liquid (solvent) = 450.0 g

Molar mass of urea = 60 g/mole

Formula used :  

\Delta T_f=i\times K_f\times m\\\\T^o-T_s=i\times K_f\times\frac{\text{Mass of urea}\times 1000}{\text{Molar mass of urea}\times \text{Mass of X liquid}}

where,

\Delta T_f = change in freezing point

\Delta T_s = freezing point of solution = -0.5^oC

\Delta T^o = freezing point of liquid X= 0.4^oC

i = Van't Hoff factor = 1  (for non-electrolyte)

K_f = molal freezing point depression constant of X = ?

m = molality

Now put all the given values in this formula, we get

[0.4-(-0.5)]^oC=1\times k_f\times \frac{5.90g\times 1000}{60g/mol\times 450.0g}

k_f=4.12^oC/m

Therefore, the molal freezing point depression constant of X is 4.12^oC/m

4 0
3 years ago
The amount of gravitational force impacts the weight of objects.<br> true or false
ElenaW [278]

Answer:

True

Explanation:

It's how gravity works.

8 0
3 years ago
Other questions:
  • Suppose 4 moles of a react with excess amount of b to produce 382.5 g of c, calculate the percent yield of
    14·1 answer
  • These two beakers represent solutions of HCl and NaOH. Describe a third beaker showing the ions that remain after the reaction h
    15·1 answer
  • The Lewis structure of an oxygen atom should have _____________ dots drawn around the symbol .The Lewis structure of a calcium a
    11·1 answer
  • What does A pH of 10 denote?
    13·2 answers
  • An aqueous KNO3 solution is made using 75.1 g of KNO3 diluted to a total solution volume of 1.95 L .Calculate the molarity of th
    9·1 answer
  • How many moles of KCIO3 are required to produce 58.3 grams of 02? <br> 2 KCIO3 —&gt; 2 KCI + 3 O2
    8·1 answer
  • Drag the tiles to the correct boxes to complete the pairs.
    11·1 answer
  • Consider the "Macro" part of Virtual lab to determine if each of the following statements is True or False *
    6·2 answers
  • Is baking soda reacting to vinegar a physical or chemical change
    9·1 answer
  • Find the pH of 0.0025M sodium benzoate
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!