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
Ksju [112]
3 years ago
11

Please help with 48!

Chemistry
1 answer:
natima [27]3 years ago
4 0
A granite catches fire more quickly
You might be interested in
How many degrees are between the melting point of ice and boiling point?
Rina8888 [55]
<span>Celsius scale: 100 degrees.
Fahrenheit scale: 180 degrees.</span>
5 0
2 years ago
Suppose you are a chemical engineer working with a client who produces toothpaste.The client wants to add a blue stripe with min
Nikitich [7]

Answer:

Explanation:

I would ask him why would he want to add the blue stripe?

5 0
3 years ago
Write the electron configuration for a sodium cation with a charge of 1+
Dafna1 [17]

1{s}^{2} 2 {s}^{2} 2 {p}^{6}

or simply 2,8 it is isoelectronic with argon

4 0
3 years ago
I am a student of chemistry. You can ask me questions in chemistry​
Maksim231197 [3]

Answer:

what happens if i mix red with green?

8 0
3 years ago
The two isotopes of chlorine are LaTeX: \begin{matrix}35\\17\end{matrix}Cl35 17 C l and LaTeX: \begin{matrix}37\\17\end{matrix}C
Kay [80]

<u>Answer:</u> The percentage abundance of _{17}^{35}\textrm{Cl} and _{17}^{37}\textrm{Cl} isotopes are 77.5% and 22.5% respectively.

<u>Explanation:</u>

Average atomic mass of an element is defined as the sum of masses of each isotope each multiplied by their natural fractional abundance.

Formula used to calculate average atomic mass follows:

\text{Average atomic mass }=\sum_{i=1}^n\text{(Atomic mass of an isotopes)}_i\times \text{(Fractional abundance})_i   .....(1)

Let the fractional abundance of _{17}^{35}\textrm{Cl} isotope be 'x'. So, fractional abundance of _{17}^{37}\textrm{Cl} isotope will be '1 - x'

  • <u>For _{17}^{35}\textrm{Cl} isotope:</u>

Mass of _{17}^{35}\textrm{Cl} isotope = 35 amu

Fractional abundance of _{17}^{35}\textrm{Cl} isotope = x

  • <u>For _{17}^{37}\textrm{Cl} isotope:</u>

Mass of _{17}^{37}\textrm{Cl} isotope = 37 amu

Fractional abundance of _{17}^{37}\textrm{Cl} isotope = 1 - x

Average atomic mass of chlorine = 35.45 amu

Putting values in equation 1, we get:

35.45=[(35\times x)+(37\times (1-x))]\\\\x=0.775

Percentage abundance of _{17}^{35}\textrm{Cl} isotope = 0.775\times 100=77.5\%

Percentage abundance of _{17}^{37}\textrm{Cl} isotope = (1-0.775)=0.225\times 100=22.5\%

Hence, the percentage abundance of _{17}^{35}\textrm{Cl} and _{17}^{37}\textrm{Cl} isotopes are 77.5% and 22.5% respectively.

6 0
3 years ago
Other questions:
  • A gas has a volume of 25.6 L at a temperature of 278 K. What will be the new temperature, in C, if
    14·1 answer
  • 1) What is the mole ratio of D to A in the generic chemical reaction? (2 points) Page 390 helps with understanding mole ratios.
    11·1 answer
  • What is crystacrystallization?
    5·1 answer
  • Clearly, movement can be seen when I touch an object and apply a push or a pull. However, there are forces that can act at a dis
    15·1 answer
  • What unit is mass generally measured in
    12·1 answer
  • How many equivalents are in a solution that contains 0.25 moles Mg2+ and 0.50 moles Cl–?
    8·1 answer
  • Which characteristic do valence electrons indicate about reactions between atoms?
    13·1 answer
  • I AMMMM GIVING 45 POINTSSSS PLSSS HELPPPPPPPP
    6·1 answer
  • Which of the following is a correct statement regarding the free energy?
    15·1 answer
  • Which of the following factors would reduce the yield of a reaction?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!