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
Papessa [141]
3 years ago
9

2) __H,PO, +

Chemistry
1 answer:
Gnoma [55]3 years ago
4 0

Explanation:

a.H2PO4 + 2KOH = K2PO4 + 2H2O

b. H2PO4 _ 2KOH

1(2) + 31 + 16(4) _ 2(23) + 2(16) + 2(1)

2 + 31 + 64 _ 46 + 32 + 2

97 _ 80

no of moles of H2PO4 = 2.5 ÷ 97

= 0.026mol

no of moles of 2KOH = 4 ÷ 80

= 0.05mol

2KOH is the limiting reactant

c. H2PO4 is the excess reactant

d. 1 mole H2PO4 weighs 2.5g

0.026mol H2PO4 weighs g

(0.026 × 2.5)

H2PO4 weighed 0.065g after reaction

You might be interested in
Which of the following is an example of convection?
blsea [12.9K]
Hot air rising and cooler air falling.
5 0
2 years ago
All of the facts about our star the Sun listed below are true EXCEPT which option?
Ronch [10]

Answer:

the sun is the smallest object in our Solar System

Explanation:

7 0
3 years ago
Which of the following is a product formed when K reacts with Cl2?
Stels [109]
The answer is A. 
Which is... KCI
3 0
3 years ago
Read 2 more answers
The combining of hydrogen and oxygen gas into liquid water is an example of what kind of change?
KatRina [158]
The combining of hydrogen and oxygen gas into liquid=H2O (water) is a compound or a molecule because it is 2 different elements combined with chemical bonds so its Chemical. B 
7 0
3 years ago
(a) if a sample containing 2.00 ml of nitroglycerin is detonated, how many total moles of gas are produced? (b) if each mole of
gregori [183]
Detonation of nitroglycerin: 

4C_3H_5N_3O_9  ------\ \textgreater \  12CO_2+6N_2+O_2+H_2O

<span>Mass nitroglycerin = 2.00 mL x 1.592 g/mL = 3.184 g 
</span>
Moles = mass / molar mass = 3.184<span> g/ 227.0872 g/mol = 0.01402
</span>
the ratio between nitroglycerin and Carbon dioxide is 4 : 12 
So, moles CO2 = 0.01402 x 12 / 4 =0.0420

the ratio between nitroglycerin and N2 is 4 : 6 
moles N2 = 0.01402 x 6 / 4 =0.0841

<span>the ratio between nitroglycerin and O2 is 4 : 1 </span>
moles O2 = 0.01402 x 1 / 4 = 0.0035

<span>the ratio between nitroglycerin and water is 4 : 1 </span>
<span>in the same way moles water = 0.005258 </span>

total moles = 0.0420 + 0.0841 + 0.0035 + 0.005258 = 0.130758

0.130758<span> x 55 = 5.78 L </span>

Mass N2 = 0.0841 mol x 28.0134 g/mol = 2.3548 g


6 0
3 years ago
Other questions:
  • WILL MARK BRAINIEST! 18 POINTS! NEED IN 15 MINUTES!
    6·1 answer
  • In descriptive scientific investigations, scientists often make observations to understand the interacting parts of a complex (b
    7·1 answer
  • Corey Bayer is a 15-year-old patient at Inner City Health Care. He sustained an injury to his right wrist today during soccer pr
    8·1 answer
  • If 1.00 mol of argon is placed in a 0.500-L container at 27.0 degree C , what is the difference between the ideal pressure (as p
    5·1 answer
  • 3. Which of the following is not true for atoms? (4 points) They combine to form elements and molecules. They contain negatively
    7·1 answer
  • Please help me with this chemistry question, image attached
    10·1 answer
  • The Lewis dot notation for two atoms is shown.
    10·2 answers
  • Which pair of elements is most apt to form an ionic compound with each other?
    5·1 answer
  • The skeletal structure in line‑angle (line‑bond) mode of 2‑isopropyltoluene is shown. Identify the number of hydrogen atoms boun
    11·1 answer
  • I need help, ACTUAL ANSWERS PLEASE
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!