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
Write an exponential function to describe the given sequence of numbers, assuming that the first number in the sequence correspo
Fantom [35]

Answer:

y = 5(6) {}^{x}

Step-by-step explanation:

A exponential function is represented by

y = ab {}^{x}

where a is the vertical stretch and b is the base and x is the nth

power of x

Since the first number corresponds with zero, that means our y intercept is the first number.

This means when x=0 , y=5 so let find the value of 5.

5 = ab {}^{0}

b to the 0th power equal 1 so

5 = a \times 1

a = 5

Our equation is for now

y = 5b {}^{x}

Now let plug in 1,30

30 = 5b {}^{1}

Divide 5 by both sides

6 = b {}^{1}

Anything to the 1st power is itself so b equal 6.

So our equation is

y = 5(6) {}^{x}

6 0
2 years ago
Find the length of FV
Anna [14]

Answer:

72.47

Step-by-step explanation:

FV cos 43 = TV

FV (0.73135370161 ) = 53

FV = 72.468 = 72.47

6 0
3 years ago
Read 2 more answers
A rug maker is using a patter that is a rectangle with a length of 96 inches and a width of 60 inches. the rug maker wants to in
dexar [7]
Recall that the formula for the perimeter of a rectangle is: 2Length+2Width
With this in mind, we have that the original design is 96×60, where 90 is length and 60 is width, so it would simply be:
2(96+l) + 2 (60+w) = New Perimeter
Or simplified, it'd be:
2l + 2w + 312 = New Perimeter
8 0
3 years ago
A washer and a dryer cost $572 combined. The washer cost $78 less than the dryer. What is the cost of the dryer?
Anni [7]

Answer:

$325

Step-by-step explanation:

Let the dryer price be x, then the washer price would be x-78

x+x-78 = 572

2x = 650

x = 325

4 0
2 years ago
What is -1 1/3 x - 3/8
pychu [463]

Answer:

88

Step-by-step explanation:

Simplify the expression -88/

3(8x-1)

3 0
3 years ago
Other questions:
  • The number of counties in state A and the number of counties in state B are consecutive even integers whose sum is 162. If state
    15·1 answer
  • Can u plz show work? Thanks so much! It's an easy problem.
    12·1 answer
  • Simplify 5(29 + 3).<br> a) 10g + 15<br> Ob) 10g + 3<br> Oc) 78 + 8<br> d) 78 +3
    13·1 answer
  • Y'all help me out a sec please!
    8·1 answer
  • Solve the equation for X and show your work.<br> 3x= 15
    11·2 answers
  • Find the value of the expression 3q - 6 when q = -2
    10·1 answer
  • Mguel sells nsurence. He earns a 6% commision on each sell he makes. Miguel has a goal of earning $600 in commisions. Miguel nee
    8·1 answer
  • A city bus driver says the number of miles to gallons of gas for his bus can be represented by the ratio 12 : 4. How many miles
    6·1 answer
  • Please help me i have no idea how
    5·1 answer
  • When using bits to represent fractions of a number, can you create all possible fractions?.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!