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
galina1969 [7]
2 years ago
11

A chemist mixes 50.0mL of a 1.0M NaOH solution with 50.0mL of a 1.0M Ba(OH)2 solution. Assuming the two solutions are additive,

what is the pH of the resulting solution
Chemistry
1 answer:
romanna [79]2 years ago
3 0

Answer:

pH=14.2

Explanation:

Hello there!

In this case, according to the information in this problem, and considering these two bases are strong, it is necessary for us to calculate the total moles of OH ions as shown below:

n_{OH^-}^{from\ NaOH}=0.050L*1.0mol/L=0.050mol\\\\n_{OH^-}^{from\ Ba(OH)_2}=0.050L*1.0mol/L*2=0.10mol\\\\n_{OH^-}^{tot}=0.15mol

Now, the as the solutions are additive, the total volume is then 0.100 L and the concentration:

[OH^-]=\frac{0.15mol}{0.100L}=1.5

And therefore, the pH is:

pH=14+log(1.5)\\\\pH=14.2

Regards!

You might be interested in
Thomas had a volume of 8.5 g of sodium chloride. What is the molar mass.?
alina1380 [7]

Answer:

58.44 g/mol

Explanation:

In this problem, make sure to remember that volume is measured in mL, L or any other units of volume. Remember that g represents grams, and grams is a measure of mass.

However, independent of what mass or what volume we take, molar mass is known to be an intensive property. That is, molar mass doesn't depend on any external conditions or any measurements.

Molar mass solely depends on the chemical structure of a compound and is a constant number at any given conditions.

In this problem, we are given sodium chloride, NaCl. In order to find its molar mass, we need to refer to the periodic table, find the atomic masses of Na and Cl and then add them up to have the molar mass of NaCl:

M_{NaCl} = M_{Na} + M_{Cl} = 22.99 g/mol + 35.453 g/mol = 58.44 g/mol

5 0
3 years ago
Please help me with this. i also need to know what the word heat means.
aliina [53]
Heat is like the fire it’s hot.
I think it’s B
Sorry if I’m wrong
3 0
2 years ago
Jose times how long sugar takes to dissolve in warm water. he conducts four trials of his experiment. what should he conclude fr
mylen [45]

He can conclude that his experiment has very low precision.

<h3>What is Precision ?</h3>

Precision is defined as the degree of refinement with which an operation is performed or a measurement .

Precision is how close the exact answers are together.

As, the answers are increasing in time.

None of the answers are similar to one another.

Hence, He can conclude that his experiment has very low precision.

Learn more about Precision here ;

brainly.com/question/27845433

#SPJ1

7 0
2 years ago
A student makes a cross-section clay model to represent the internal structure of a volcano that leads to the formation of two r
Murrr4er [49]

CAnswer:

Explanation:

6 0
2 years ago
If a bar magnet's neutral region is broken into two, what will most likely occur? A. Neither segment will have a north or south
grigory [225]
The answer is D I JUST TOOKM THE TEST
8 0
2 years ago
Read 2 more answers
Other questions:
  • Remember that each amino acid change is caused by a single nucleotide substitution. Use this information to further limit the po
    15·1 answer
  • A substance that can donate a pair of electrons to form a covalent bond is known as a(n) _____ base.
    11·2 answers
  • Is Acetaminophen ionic or molecular
    13·1 answer
  • Is the formation of acid rain an exothermic or endothermic reaction?
    15·1 answer
  • Please Help!!
    14·2 answers
  • What is the similarity and difference between the 4 seasons
    15·1 answer
  • How many ml is in a teaspoon??
    14·1 answer
  • Consider the reaction between hydrazine and hydrogen to produce ammonia, N2H4(g)+H2(g)→2NH3(g). Use enthalpies of formation and
    6·1 answer
  • How many moles of NaOH must be dissolved in 1.00 L of water to make NaOH (aq) with a pH of 12.2?
    11·1 answer
  • You are given the balanced chemical equation below. If you start this chemical reaction with 0.53 moles of CH4 and 1.5 moles of
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!