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
UNO [17]
2 years ago
7

In which compound is the percent composition by mass of chlorine (cl) equal to 42%?.

SAT
1 answer:
anygoal [31]2 years ago
7 0

There are different kinds of compositions. The percentage mass composition of chlorine is 42% in HClO3 (gram-formula mass = 84 g/mol)

<h3>What is HClO3 known as?</h3>

This HClO3  is known to be popularly called as Chloric acid.

Percentage mass of chlorine is formula:

Percentage mass composition = mass of element * 100%/mass of compound.

Therefore;

HClO3 (gram-formula mass = 84 g/mol)

Percentage mass composition of chlorine = 35 * 100% / 84 = 42%

See full question below.

In which compound is the percent composition by mass of chlorine equal to 42%?

(1) HClO (gram-formula mass = 52 g/mol)

(2) HClO2 (gram-formula mass = 68 g/mol)

(3) HClO3 (gram-formula mass = 84 g/mol)

(4) HClO4 (gram-formula mass = 100. g/mol)

Learn more about compound from

brainly.com/question/24924853

You might be interested in
What cuases the movement of the plates of the Earth
choli [55]

Answer:

Co vid 19..

Explanation:

5 0
3 years ago
Read 2 more answers
A triplet of bases in the template strand of DNA is AGT. What would be the corresponding codon for mRNA? UCA TCA TCU TUA
denis-greek [22]

In a DNA strand, adenine (A) pairs with thymine (T), and guanine (G) pairs with cytosine (C).

Instead of adenine, RNA strands contain uracil (U).

So, the DNA triplet AGT is complemented by the RNA triplet UCA.

3 0
2 years ago
There are 10 turtles , one is killed, how many are left?
kozerog [31]
10 the dead one is still there.
5 0
3 years ago
Read 2 more answers
Which of the following facts are NOT true about dichotomous keys?
Lunna [17]
They always show evolutionary relationships of organisms.
6 0
3 years ago
37 cos(x2) dx 0 Do the following. (a) Find the approximations T8 and M8 for the given integral. (Round your answer to six decima
dusya [7]

The approximations T8 and M8 for the given integral are:

  • T8 = 33.386321; and
  • M8 = 33.50794

<h3>What is an integral?</h3>

An Integral is a variable of which a given function is the derivative, i.e. it gives that function when differentiated and may express the area under the curve of the function's graph.

<h3>What is the explanation to above answer?</h3>

Given:

F(x) = 37 cox (x²)

Internal = [0,1] n = 8 in Δ x = 1/8

The sub intervals are:

[0, 1/8], [1/8, 2/8], [2/8, 3/8], [ 3/8, 4/8], [ 4/8, 5/8], [ 5/8, 6/8], [6/8, 7/8], [ 7/8, 1]

The mid points are given as:

1/16, 3/16, 5/16, 7/16, 9/16, 11/16, 13/16, 15/16

and X₀ = 0, X₁ = 1/8, X₂ = 2/8

Using the Trapezium Rule which states that:

\int\limits^1_0 cos(x)^{2} } \, dx = Δx/2 [f(xo) + 2f(x1) 2f(x2) + ....+ 2f(x7) + f(x8)]

= 1/1Q[f(0) + 2f (1/8) + 2f(2/8) + ....+ 2f(7/8) + f(1)]

= 0.902333

Now

T8 = \int\limits^1_0 {37Cos(x)^{2} } \, dx

= 37\int\limits^1_0 {(0.902333)} } \, dx

= 37 (0.902333)

T8 = 33.386321

It is to be noted that the midpoints rule is given as;

\int\limits^1_0 {Cos(x)^{2} } \, dx  = Δx [f(1/16) + (3/16) + .... + f(15/16)]

= 1/8[f(1/16) + f (3/16) + f(5/16) + f(7/16) + f(9/16) + f(11/16) + f(13/16) + f(15/16)]

= 0.905620

From the above,

M8 = \int\limits^1_0 {37 Cos(x)^{2} } \, dx

= 37\int\limits^1_0 {Cos(x)^{2} } \, dx

= 37 (0.905620)

M8 = 33.50794

Learn more about integral at;
brainly.com/question/19053586
#SPJ1

6 0
2 years ago
Other questions:
  • What term refers to the part of a spacecraft that is occupied by the crew for takeoff and landing?
    8·1 answer
  • Why is the magic number of an atom 8?
    9·1 answer
  • Damon wants to be self employed. He researched several jobs in the Health Science career cluster and ranked the jobs from lowest
    13·2 answers
  • The title of the passage is “The Orchid’s Secret.” Based on the information in the passage, what secret may the title be referri
    15·1 answer
  • which statement correctly explains why the ashes of burnt paper have less mass than the original paper?
    15·1 answer
  • Which of the following statements is true for real gases?
    10·1 answer
  • Which of the following statements is true about the 1920s?.
    13·1 answer
  • Select the correct answer. consider this equation. if is an angle in quadrant ii, what is the value of ? a. b. c. d.
    14·1 answer
  • Society is a joint-stock company, in which the members agree, for the better securing of his bread to each shareholder, to surre
    8·1 answer
  • Which statement explains why Immanuel Wallerstein's classification is preferred by sociologist
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!