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
lina2011 [118]
2 years ago
5

Zn-64 = 48.63%

Chemistry
1 answer:
Ann [662]2 years ago
5 0

Answer:

A = 65.46 u

Explanation:

Given that,

The composition of zinc is as follows :

Zn-64 = 48.63%

Zn-66 = 27.90%

Zn-67 = 4.10%

Zn-68 = 18.75%

Zn-70 = .62%

We need to find the  average atomic mass of the given element. It can be solved as follows :

A=\dfrac{48.63\times 64+27.90\times 66+4.1\times 67+18.75\times 68+0.62\times 70}{100}\\A=65.46\ u

So, the average atomic mass of zinc is 65.46 u.

You might be interested in
Q7-A graduated cylinder is filled to the 12.0 mL line with water. A solid with a mass of 14.52 g is placed in the graduated cyli
Tems11 [23]

Answer:

If it served you, give me 5 stars please, thank you!

<h3><u>c) 13.29 mL</u></h3>

6 0
2 years ago
Gasoline has a density of 0.65 g/ml. what is the mass in kilograms if the volume is 34 l
djverab [1.8K]
Does mass<span> alone provide no information about the amount or size of a measured quantity? No, we need combine </span>mass<span> and </span>volume<span> into "one equation" to </span>determine<span> "</span>density<span>" provides more ... </span>g/mL<span>. An </span>object has<span> a mass of </span>75 grams<span> and a volume of </span>25 cc<span>. ... A </span>certain object weighs 1.25 kg<span> and </span>has<span> a </span>density of<span> </span>5.00 g/<span>mL</span>
7 0
3 years ago
????.?<br><br><br> .?.?<br> .<br> I have some question on Alef website
Andrew [12]

B. crust, middle, core

8 0
3 years ago
Read 2 more answers
How many grams are contained in a 0.183 mol sample of ammonium phosphate?
soldi70 [24.7K]

Molar mass of ( NH₄)₃PO₄ = 14.01×3 + 1.01×12 + 30.97 + 16.00×4 = 149.12 g/mol. Mass of 0.183 mol ...

7 0
2 years ago
Which of the following has helped preserve resources while cutting the demand for energy?
sweet [91]
A is the correct answer
4 0
2 years ago
Read 2 more answers
Other questions:
  • Twenty-seven milliliters of an acid with an unknown concentration are titrated with a base that has a concentration of 0.55 M. T
    10·2 answers
  • What Element is found in column 16, period 2?
    10·2 answers
  • 36g of KOH dissolved in 800mL of water. What is the molality of the solution?
    14·1 answer
  • Which piece of evidence would prove that a reaction is exothermic?
    10·2 answers
  • How many liters of solution will contain 1.5 moles of CaCl2 if the solution is 6.0 M CaCl2?
    6·1 answer
  • Please help I need these answers
    10·1 answer
  • Is air homogeneous or heterogeneous?
    11·2 answers
  • can energy and matter be created during photosynthesis and cellular respiration pleasssseeee this is due today
    11·2 answers
  • Mention 3 types of making bases​
    14·2 answers
  • N2+3H2 → 2NH3
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!