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
gogolik [260]
3 years ago
9

You have 535 g of Zinc Chloride, ZnCl2. How many moles is this?

Chemistry
2 answers:
podryga [215]3 years ago
8 0

Answer:3.93moles

Explanation:

I mole of ZnCl2= 65+2(35.5)=136

If 136g of Zinc chloride,,=136grams

Then 535g is 535*1/136=3.93 moles of zinc chloride.

Noted that one mole of a substance contains its molar mass.

makkiz [27]3 years ago
5 0

Best Answer:  1 mole of zinc has a mass of 65.4 grams  

Therefore, if 1 mole is 65.4 grams, how many moles is 0.535g?  

1 mol = 65.4g  

? mol = 0.535g  

0.535g  

---------  

65.4g/mol  

(0.535g divided by 65.4grams per mole of Zinc)


You might be interested in
How has the taxonomy of organisms changed over time
neonofarm [45]

Answer:

When scientist find new species that may have to change classification systems in order to accommodate them. DNA sequencing has also let us find out more about evolutionary relationships. The more recent the common ancestor, the more closely related the two species are.

Explanation:

8 0
3 years ago
CaCN2 + 3H20 - CaCO3 + 2NH3
ANTONII [103]

Answer:3

Explanation:

6 0
3 years ago
What mass in grams would 5.7L of hydrogen gas occupy at STP?​
tekilochka [14]

Answer:  The correct answer is:  " 0.54 g " .

__________________________________________

Explanation:

Note that "hydrogen gas" is:  

H₂ (g)  ;   that is:  a "diatomic element" (diatomic gas) ;

_________________________________________

The molecular weight of "H" is:  1.00794 g ;

   (From the Periodic Table of Elements).

So, the molecular weight of:  H₂ (g)  is:

    " 1.00794 g * 2  = 2.01588 g ; {use calculator) ;

_________________________________________

Note the conversion for a gas at STP:

______

  1 mol of a gas = 22.4 L gas;

___

i.e. " 1 mol / 22.4 L " ;

____

So:     " 5.7 L H₂ (g)  *  \frac{1 mol H_{2} }{22.4 L} *\frac{2.01588 g}{mol} =? ;

The "L" ("literes" cancel out to "1" ;  since "L/L = 1 ;

The "mol" (moles) cancel out to "1" ; since "mol/mol = 1 ;

____

and we are left with:

____

 [5.7 * 2.104588 g ] / 22.4  =  ?  g ;

______________________

→ [ 11.9961516  g ] / 22.4 =

          0.53554248214  g ;l

_____________________________

We round this value to:  " 0.54 g " ;

 → since "5.7 L " has 2 (two) significant figures;  

     22.4 is an exact number conversion;

     and "5.7 L" has fewer significant figures than:

    " 2.104588 " ; or:  " 1.00794 " .

  → as such: We round to "2 (two) significant figures."

______________________________

Hope this is helpful.  Wishing you the best in your academic endeavors!

_______________________________

8 0
3 years ago
jamie is not sure a new medication will work because it has not had a large test group. Is jamie being creative?
Georgia [21]

Answer:

yes because I wouldn't do it

7 0
3 years ago
Which adaptation is likely to increase the chances of survival of an animal in a rainforest?
LiRa [457]
I know I think it’s a A

6 0
3 years ago
Other questions:
  • How do the metal aluminum coils in an air conditioner help keep a house cool
    6·2 answers
  • Sirius, the brightest star, is 8.8 light-years from Earth. That means
    10·1 answer
  • Which conversion factor should you use first to calculate the number of grams of co2 produced by the reaction of 50.6 g of ch4 w
    15·1 answer
  • It takes 208.4 kJ of energy to remove 1 mole of electrons from 1 mole of atoms on the surface of rubidium metal. How much energy
    15·1 answer
  • A lahar is a type of mudflow that occurs
    8·1 answer
  • Calculate the number of moles of neon gas in 8.15 x 10^24 atoms of neon gas.
    6·1 answer
  • 3. Sulfur
    7·1 answer
  • When Is Mechanical Energy Not Conserved?
    13·1 answer
  • Which of the following pairs of elements is most likely to form an ionic compound? (Hint - question 4 tells you what types of el
    5·1 answer
  • vIt is the middle of winter when you go to the store to buy some balloons for a birthday party. After you get to your car with t
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!