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
iren [92.7K]
3 years ago
14

A chemist adds 135.0 mL of a 0.21M zinc nitrate (Zn(NO3) solution to a reaction flask. Calculate the mass in grams of zinc nitra

te the chemist has added to the flask. Be sure your answer has the correct number of significant digits.
Chemistry
1 answer:
yKpoI14uk [10]3 years ago
8 0

Answer:

5.36 grams the mass in grams of zinc nitrate the chemist has added to the flask.

Explanation:

Molarity=\frac{\text{Moles of solute}}{\text{Volume of the solution (L)}}

Moles of zinc nitrate = n

Volume of the solution = 135.0 mL = 0.1350 L

Molarity of the solution = 0.21 M

0.21 M=\frac{n}{0.1350 L}

n=0.21M\times 0.1350 L=0.02835 mol

Mass of 0.02835 moles of zinc nitrate:

0.02835 mol × 189 g/mol = 5.358 g ≈ 5.36 g

5.36 grams the mass in grams of zinc nitrate the chemist has added to the flask.

You might be interested in
3. ¿Cuál de las siguientes operaciones es correcta para calcular el número de moles de hidrógeno necesarios para producir 6 mole
Aloiza [94]

Answer:

the answer is d that is 6×2/3

4 0
3 years ago
There are 342 g of sucrose in 1.00 mol of sucrose. What is the molar concentration (molarity) of a solution containing 171 g suc
AVprozaik [17]
For the answer to the question above, use these formulas in solving your problem and as a guide.
<span> 
MM = 342 (g/mol) </span>

<span>171 (g) / 342(g/mol) = x mol of sucrose </span>
<span>x moles of sucrose/ 1.25 L =  Molarity of soultion 

</span>I hope I helped you with your problem. Have a beautiful day!
7 0
3 years ago
Is this a scientific model? Use complete sentences to explain why or why not
Fittoniya [83]

Answer:

it is

Explanation:

8 0
3 years ago
What is the answer? <br><br> NO LINKS!!
jek_recluse [69]
Liquid? maybe, its really inbetween if you get what i mean
5 0
3 years ago
Sodium has the atomic number 11. How many electrons are in a sodium ion, which has the symbol Na+? 10 11 12 NextReset © 2017 Edm
Anna71 [15]
Na 1s²2s²2p⁶3s¹
↓ - e⁻
Na⁺ 1s²2s²2p⁶    2+2+6=10 e⁻

10 electrons are in sodium ion Na⁺
4 0
3 years ago
Other questions:
  • 2. Se combinan 40 g de SO2 y 25 g de O2 determine el porcentaje en masa del exceso con respecto a su masa inicial. P.A. (S = 32;
    14·1 answer
  • Which of these statements accurately describes polymers?
    8·2 answers
  • Please help with these two thank you!
    5·1 answer
  • Which two observations below can be evidence that a chemical change has occurred
    15·1 answer
  • explain how chemists can state with certainty that no one will discover an element between sulfur and chlorine?
    15·1 answer
  • Intrutrusive rocks are formed when magma is squeezed in between other rocks true or false
    8·1 answer
  • 15 POINTS - AUXILARY LINE
    8·1 answer
  • Calculate the mass volume percent of a NaCl solution in which 186 g of NaCl is dissolved in enough water to give a total volume
    14·1 answer
  • Is chlorine a substance or a mixture
    6·1 answer
  • Is the supply of copper-rich ores greater or lesser than iron-rich ores?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!