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
Alik [6]
3 years ago
10

Need help!!!!!!!!!!!!!

Chemistry
1 answer:
natulia [17]3 years ago
3 0

Answer:

density

Explanation:

You might be interested in
What is the percentage by mass of sulphur in Al2(SO4)3[A12SO4 =<br>342g/mol, S = 32]​
valentinak56 [21]

Answer: The percentage by mass of sulphur in Al_2(SO_4)_3 is 9.36%

Explanation:

Mass percent of an element is the ratio of mass of that element by the total mass expressed in terms of percentage.

{\text {Mass percentage}}=\frac{\text {mass of sulphur}}{\text {Total mass}}\times 100\%

Given: mass of sulphur = 32 g/mol

mass of Al_2(SO_4)_3 = 342 g/mol

Putting in the values we get:

{\text {Mass percentage}}=\frac{32g/mol}{342g/mol}\times 100\%=9.36\%

The percentage by mass of sulphur in Al_2(SO_4)_3 is 9.36%

4 0
3 years ago
Ptrpared a solution of sodium chloride (NaCl) by measuring out 49.Umol of sodium chloride into 150. ML. Volumetric flask and fil
ArbitrLikvidat [17]

Answer:

The answer to your question is below

Explanation:

Data

Substance = NaCl

moles of NaCl = 49

volume = 150 ml

Process

Molarity is a unit of concentration that makes a relation of the moles of a substance and the volume.

Molarity = moles / volume (L)

1.- Convert 150 ml to L

                  1000 ml ------------------ 1 L

                     150 ml -----------------  x

                      x = (150 x 1) / 1000

                      x = 0.15 L

2.- Substitution

Molarity = 49 / 0.15

Molarity = 326. 7

I have a doubt if the number of moles is 49 moles or 49μmoles            

4 0
3 years ago
The phase of matter can be changed by:
stiks02 [169]

Answer: A

Explanation: Mass and volume is the amount, amount doesn’t make the phase of a matter change.

3 0
3 years ago
Read 2 more answers
What is the net Ionic equation of HClO4(aq)+ NaOH(aq) = H2O(l)+ NaClO4(aq)
uranmaximum [27]
H^+(aq) + OH^-(aq) ---> H2O(l) 

<span>Na^+ and ClO4^- are the spectator ions.</span>
7 0
3 years ago
How do we know that K2CrO4 and Ba(NO3)2 are not solids?​
navik [9.2K]
I would say is because of the Boron from O?
7 0
3 years ago
Other questions:
  • Calculate the enthalpy change,,ΔH=∑ Hp - ∑ HR for the following reaction using equations 1, 2 C graphite(s) --&gt; C diamond(s)
    10·1 answer
  • 0.71 g Cu equals how many moles
    8·2 answers
  • Which is a substance that could be found in air, water or soil that is harmful to humans or animals?
    7·1 answer
  • What does pressure do to an equilibrium
    6·1 answer
  • What is our solar System inside
    14·2 answers
  • Balance this equation:<br> 6K + 1Al2O3 ----&gt;<br> __K₂O+__Al
    10·1 answer
  • Which statement best describes a chemical property of Iron?
    6·2 answers
  • BRAINLIST!!
    6·2 answers
  • Please help me solve this USING DIMENSIONAL ANALYSIS! :
    14·1 answer
  • What is the difference between an acid and a base? Give an example of each.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!