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
mojhsa [17]
3 years ago
13

Hydrofluoric acid, hf(aq), cannot be stored in glass bottles because compounds called silicates in the glass are attacked by the

hf(aq). sodium silicate (na2sio3), for example, reacts as shown below. na2sio3(s) + 8 hf(aq) h2sif6(aq) + 2 naf(aq) + 3 h2o(l) (a) how many moles of hf are needed to react with 0.340 mol of na2sio3?
Chemistry
1 answer:
Trava [24]3 years ago
5 0
1) Chemical equation

Na2 SiO3 (s) + 8 HF (aq) ---> H2 Si F6 (aq) + 2 Na F (aq) + 3H2O (l)

It is balanced

2) Molar ratios

1 mol Na2 SiO3 : 8 mol HF.

3) Proportion

0.340 mol Na2 SiO3 * 8 mol HF / 1mol Na2SiO3 = 2.72 mol HF.

Answer: 2.72 mol HF

You might be interested in
Household items that are substances
Yuri [45]

Answer:

water,salt are the house hold items

4 0
3 years ago
True or False
Deffense [45]
The answer is true that they have equal mases.


7 0
2 years ago
Can someone please help me and don’t answer if you don’t know the answer please<br> thank you :)
o-na [289]
Combustion means the burning of something. So in the given question, you could say, “In this question, combustion means the burning of methane”.
8 0
2 years ago
Why is water a polar molecule but a fluorine molecule is not?
yKpoI14uk [10]

Answer:

The electrons in H2O are not shared equally, making it a polar molecule. The molecules in flourine, F2, are shared equally, making it not a polar molecule.

Explanation:

8 0
2 years ago
Lolgfssfhjfddccccvvbjn
Contact [7]

What exactly is ur question??

5 0
2 years ago
Read 2 more answers
Other questions:
  • Calculate the weight of Fe3O4 in 100.0g Fe2O3.
    10·1 answer
  • Which instrument is used to measure the gain or loss of heat?
    15·2 answers
  • The average kinetic energy of the atoms that make up a substance which is changing from a liquid to a solid is
    10·2 answers
  • A gas has a pressure of 2.31 atm and occupies
    8·1 answer
  • Did an oxidation-reduction reaction occur in the reaction between copper sulfate and sodium sulfide?
    14·2 answers
  • Hydrocarbons consisting of short carbon chains are ________.
    11·1 answer
  • 7. What do you use to hold a test tube when you are heating it?​
    14·2 answers
  • Proportional means that
    15·1 answer
  • If 16.4 g of oxygen gas react with excess hydrogen, how many moles of water are produced?
    12·1 answer
  • When a -COOH group replaces a hydrogen in a hydrocarbon the result is a/an
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!