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
lbvjy [14]
3 years ago
10

A 5.00-ml sample of an h3po4 solution of unknown concentration is titrated with a 0.1090 m naoh solu- tion. a volume of 7.12 ml

of the naoh solution was required to reach the equivalence point. what is the concentration of the unknown h3po4 solution?
Chemistry
1 answer:
Maurinko [17]3 years ago
8 0

The concentration  of  unknown  H3PO4  solution is 0.052 M


<em> </em><u><em>calculation</em></u>

step 1:  write  the   balanced molecular equation

3NaOH +  H3PO4→  Na3PO4  +3H2O

step 2: find the  moles of NaOH

moles =  molarity x volume  in liters

volume  in liters = 7.12  ml  /1000 =  0.00712  L

molarity =  0.1090 M =  0.1090  mol/l

moles is therefore = 0.1090  mol/L  x   0.00712  L =0.00078  moles


step 3:  use the  mole  ratio to determine the moles of H3PO4

H3Po4: NaOH  is  3:1 therefore the  moles  of H3PO4

=  0.00078  x1/3 =0.00026 moles

Step 4:  calculate the   molarity   of H3PO4

molarity =  moles/volume in liters

volume in liters = 5.00 / 1000 =0.005  L

molarity is= 0.00026/0.005=0.052 M


You might be interested in
In what state is the carbon dioxide being used by the researchers and why?
Artyom0805 [142]
Carbon dioxide and what state it doesn’t make no sense
8 0
3 years ago
What characterizes a strong acid or base? complete ionization in water polar covalent bonding presence of a hydroxide or hydroge
Natasha2012 [34]

1. Complete ionization in water.  

2. Ionization constant.  

3. A good hydrogen-ion acceptor.  

4. Weak acid.  

5. This base ionizes slightly in aqueous.

I really hope this answer helps you out! It makes my day helping people like you and giving back to the community that has helped me through school! If you could do me a favor, if this helped you and this is the very best answer and you understand that all of my answers are legit and top notch. Please mark as brainliest! Thanks and have a awesome day!

7 0
3 years ago
Read 2 more answers
What is the empirical formula of C3H6N2
Evgen [1.6K]

Answer:

The empirical formula of the compound C₃H₆N₂ is C₃H₆N₂

Explanation:

The empirical formula of a compound is the formula of the compound given in the (smallest) whole number ratio of the elements of the compound

The empirical formula of S₂O₂ is SO

The empirical formula of C₃H₆O₃ is CH₂O

The given compound's molecular formula is C₃H₆N₂

The smallest whole number ratio of of the elements of the compound is 3:6:2, therefore, the empirical formula of the compound C₃H₆N₂ is C₃H₆N₂.

4 0
3 years ago
The main goal of developing technology is to___?
sammy [17]

I believe the correct answer is C, but I'm 100% on this.  Hope this helped though!

-TTL

8 0
3 years ago
Read 2 more answers
A fifth-grade science class puts half of a white tablet in a test tube with 10 milliliters (mL) of water at 21°C (70°F). The tab
hichkok12 [17]

Answer:

change in water tempreture.

Explanation:

5 0
2 years ago
Other questions:
  • Which of the following is a compound machine?
    14·2 answers
  • What is the ph of a saturated solution of aluminum hydroxide?
    9·1 answer
  • Which of the following statements about material bonding is correct? C O a. Ionic bonds are formed by the sharing of valence ele
    9·1 answer
  • What is the instantaneous rate of formation of product C given the following information: a. Stoichiometric equation A+ B2C+ D b
    7·1 answer
  • Q: If the average speed of a species of tortoise is 0.36 km/h, what is that speed in cm/s?
    13·1 answer
  • Select the correct answer<br><br> Giving brainliest
    14·1 answer
  • Place the following events in sequence:
    6·2 answers
  • Regions that receive up to 20 inches of rainfall per year are referred to as __________ because they receive more precipitation
    8·1 answer
  • A sample of 54.78 liters of H2 would have a mass of
    9·1 answer
  • Pls help!! Which statement about sodium chloride is correct?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!