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
Karo-lina-s [1.5K]
3 years ago
12

If A • B*2 = 1.8 x 10*-7, and C•B/D = 7.2 x 10*-4, find the value of A•D*2/C*2

Chemistry
1 answer:
joja [24]3 years ago
8 0

Answer:

A*D²/C² = 0.347

Explanation:

A*B² = 1.8*10⁻⁷----- (1)

making A subject of formula; A = 1.8 * 10⁻⁷/B² ----(2)

C* B/D = 7.2*10⁻⁴ ----(3)

making C subject of formula; C = D * 7.2*10⁻⁴/B ----(4)

substituting the values of A and C in the equation A*D²/C²

A*D²/C² = (D² * 1.8 * 10⁻⁷/B²)/(D * 7.2*10⁻⁴/B)²

A*D²/C² = (D² * 1.8 * 10⁻⁷/B²)/(D² * 5.184*10⁻⁷/B²)

A*D²/C² = D² * 1.8 * 10⁻⁷/B² * B²/D² * 5.184*10⁻⁷

A*D²/C² = 1.8 * 10⁻⁷/5.184*10⁻⁷

A*D²/C² = 0.347

You might be interested in
Whic number of the periodic table is the atomic number and which number is the atomic mass?
Anettt [7]

Answer:

The mass number (represented by the letter A) is defined as the total number of protons and neutrons in an atom. Consider the element helium. Its atomic number is 2, so it has two protons in its nucleus.

The atomic mass of a single atom is simply its total mass and is typically expressed in atomic mass units or amu. By definition, an atom of carbon with six neutrons, carbon-12, has an atomic mass of 12 amu.

5 0
2 years ago
Which organisms are secondary consumers in a temperate coniferous forest? (Select all that apply.)
Ira Lisetskai [31]
Lynx and wolf!!! (: hope this helps
6 0
3 years ago
Read 2 more answers
B. Argue: Your classmate predicted the magnets are
rodikova [14]

Answer

they atract

Explanation:

8 0
3 years ago
Which of the following definitions describes a chemical hazard?
Monica [59]
I think it would be A because hazardous waste would most likely be found in dust, fumes etc. I'm not sure though.
7 0
3 years ago
Read 2 more answers
How many atoms of hydrogen (h) are present in 200 molecules of ammonia (nh3)? express your answer numerically?
natita [175]
<span>Chemical formula of ammonia = NH3 As we can see there are three atoms of hydrogen in one molecule of ammonia. So in the 200 molecule of ammonia there will be = 200*3 = 600 atoms of hydrogen. Answer - 600 atoms of hydrogen.</span>
6 0
3 years ago
Other questions:
  • Answer fast! All transition metals have _______ valence electrons.
    10·1 answer
  • What is the proper name for this fomula BaCl 2
    12·2 answers
  • 4.564000 x 10^-4 express how many significant figures
    13·1 answer
  • I need Helpppp with my chemistry while we are out of school. I don't have a good teacher and he's not helping since it's his las
    5·1 answer
  • Which of the following is a description of an exothermic reaction?
    10·1 answer
  • What does a bomb calorimeter do?
    8·2 answers
  • What is the electron configuration of the calcium ion?​
    13·2 answers
  • Magnesium metal reacts with oxygen according to the equation: Mg(s) + O2(g) → 2MgO2(s)
    14·1 answer
  • Two scientists were competing to earn some grant money to fund their research, because
    11·2 answers
  • . What mass of ammonium chloride must be added to 250. mL of water to give a solution with pH
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!