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
Zolol [24]
3 years ago
6

If 20.0 mL of Ca(OH)2 with an unknown concentration is neutralized by 37.5 mL of 0.124 M HCl, what is the concentration of the C

a(OH)2 solution? Show all of the work needed to solve this problem.
Ca(OH)2 + 2 HCl 2 H2 O + CaCl2
Mathematics
1 answer:
Cloud [144]3 years ago
7 0
The balanced chemical reaction is:

<span>Ca(OH)2 + 2 HCl = 2 H2 O + CaCl2
</span>
We are given the amount of hydrochloric acid to be used in the reaction. This will be the starting point for the calculations.

0.124 mol HCl / L soln ( .0375 L solution) ( 1 mol Ca(OH)2 / 2 mol HCl) / 0.020 L Ca(OH)2 solution = 0.12 mol / L Ca(OH)2 = 0.12 M
You might be interested in
A company makes a profit of $5.8 million. This is $1.2 million
QveST [7]

Answer:

I think last year, the company's profit was 2.3 million $

Step-by-step explanation:

5.8 - 1.2 = 4.6

4.6 divided by 2 = 2.3

8 0
3 years ago
The answer to the question in the picture
wolverine [178]
Add them all up to get it
7 0
3 years ago
*HELP ASAP I CAN ONLY DO THIS ONE TIME OR ILL FAIL*
docker41 [41]

Answer:

A

Step-by-step explanation:

V= BxHxL divided by 2

6x9x21= 1,134

divided by 2 equals 567yd

7 0
3 years ago
Read 2 more answers
Identify all the points that are on the following quadratic function: y = x^2 - 3x
Bad White [126]
THE ANSWER IS A AND B
8 0
3 years ago
Read 2 more answers
Give the first ten terms of the following sequences. You can assume that the sequences start with an index of 1. Logs are to bas
Vitek1552 [10]

Answer:

a)

a1 = log(1) = 0 (2⁰ = 1)

a2 = log(2) = 1 (2¹ = 2)

a3 = log(3) = ln(3)/ln(2) = 1.098/0.693 = 1.5849

a4 = log(4) = 2 (2² = 4)

a5 = log(5) = ln(5)/ln(2) = 1.610/0.693 = 2.322

a6 = log(6) = log(3*2) = log(3)+log(2) = 1.5849+1 = 2.5849 (here I use the property log(a*b) = log(a)+log(b)

a7 = log(7) = ln(7)/ln(2) = 1.9459/0.6932 = 2.807

a8 = log(8) = 3 (2³ = 8)

a9 = log(9) = log(3²) = 2*log(3) = 2*1.5849 = 3.1699 (I use the property log(a^k) = k*log(a) )

a10 = log(10) = log(2*5) = log(2)+log(5) = 1+ 2.322= 3.322

b) I can take the results of log n we previously computed above to calculate 2^log(n), however the idea of this exercise is to learn about the definition of log_2:

log(x) is the number L such that 2^L = x. Therefore 2^log(n) = n if we take the log in base 2. This means that

a1 = 1

a2 = 2

a3 = 3

a4 = 4

a5 = 5

a6 = 6

a7 = 7

a8 = 8

a9 = 9

a10 = 10

I hope this works for you!!

3 0
3 years ago
Other questions:
  • I’m horrible at graphing please help it says to graph a line with the slope 1/3 passing through the point (3,1)
    11·1 answer
  • .
    5·2 answers
  • Which is closest to the mean number ??
    15·1 answer
  • Classify the solutions of 1 over x plus 4, plus one half, equals 1 over x plus 4 as extraneous or non-extraneous.
    6·2 answers
  • Determine the slope for the line that passes through the points given by the table of values.
    12·1 answer
  • 2. Which graph is the solution of the following syst
    12·1 answer
  • Help I need the answer in 5 minutes!!
    14·2 answers
  • Find the equation of the axis of<br> symmetry for this function.
    12·1 answer
  • PLS HELP WILL MARK YOU BRAINLIEST! NO FAKE ANSWERS!
    15·1 answer
  • Finding a percentage of a total amount: Real-world situations
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!