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
Ray Of Light [21]
3 years ago
15

Chemistry!! Help please!!

Chemistry
1 answer:
Flura [38]3 years ago
4 0
1. The conjugate acid-base pairs are HCl/Cl- and NH3/NH4+. They can be changed into one another by proton transfer.

2. The acid in the reaction is the molecule that has the lowest pKa value or (simply) gives their proton away the easiest. The pKa of HCl is around 3 I think while ammonia’s is around 35. This means HCl is the acid here. In the other reaction (backwards) you can see that NH4+ gives a proton to the chloride ion. To give a proton = acid. So the acids are HCl and NH4+ and the bases are NH3 and Cl-.

An important rule is: The stronger the acid/base, the weaker its conjugate base/acid.
You might be interested in
What is the element with period 2 group 14
Ghella [55]

Answer:

Carbon

Explanation:

7 0
3 years ago
Read 2 more answers
2c2h6 + 7o2 = 4co2 + 6h2o <br> what mass of co2 will be produced from the reaction of 37.5 g c2h6
ivanzaharov [21]

Answer:

use n=m/M (moles=mass/molar mass) to find out how many moles of C2H6 there are in 60g

Explanation:

8 0
3 years ago
Corinne uses a model rocket in her physical science class. The rocket begins its trip traveling vertically at 22 m s . It reache
dezoksy [38]

The answer is D have a good day

8 0
2 years ago
Read 2 more answers
Problem Page Liquid hexane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water . Suppose 70. g of
shusha [124]

Answer:

The maximum mass of carbon dioxide that could be produced by the chemical reaction is 70.6gCO_{2}

Explanation:

1. Write down the balanced chemical reaction:

2C_{6}H_{14}_{(l)}+19O_{2}_{(g)}=12CO_{2}_{(g)}+14H_{2}O_{(g)}

2. Find the limiting reagent:

- First calculate the number of moles of hexane and oxygen with the mass given by the problem.

For the hexane:

70.0gC_{6}H_{14}*\frac{1molC_{6}H_{14}}{86.2gC_{6}H_{14}}=0.81molesC_{6}H_{14}

For the oxygen:

81.3gO_{2}*\frac{1molO_{2}}{32.0gO_{2}}=2.54molesO_{2}

- Then divide the number of moles between the stoichiometric coefficient:

For the hexane:

\frac{0.81}{2}=0.41

For the oxygen:

\frac{2.54}{19}=0.13

- As the fraction for the oxygen is the smallest, the oxygen is the limiting reagent.

3. Calculate the maximum mass of carbon dioxide that could be produced by the chemical reaction:

The calculations must be done with the limiting reagent, that is the oxygen.

81.3gO_{2}*\frac{1molO_{2}}{32gO_{2}}*\frac{12molesCO_{2}}{19molesO_{2}}*\frac{44.0gCO_{2}}{1molCO_{2}}=70.6gCO_{2}

7 0
3 years ago
What fact shows that baking a chocolate chip cookie is a chemical reaction?
Setler79 [48]

Answer:C The final product cannot be converted back to the original ingredients.

7 0
3 years ago
Read 2 more answers
Other questions:
  • You wash dishes for a chemistry laboratory to make extra money for laundry. You earn 12 dollars/hour, and each shift lasts 75 mi
    9·2 answers
  • The energy released by nuclear fission can be used to ________ and turn a turbine to produce ________ energy.
    8·2 answers
  • Is water an element, molecule, or compound?
    14·2 answers
  • During a reaction, thermal energy from the environment is converted into chemical energy stored in the products. Which of the fo
    8·2 answers
  • I need help with chemical formulas<br>​
    14·1 answer
  • Which macro nutrient is made up of carbon and hydrogen elements join together in long groups called hydrocarbons?
    13·2 answers
  • What is the mass in grams of 2.5 mol of O2?
    11·1 answer
  • Someone please help me :)))
    11·2 answers
  • What does transmutation do
    12·2 answers
  • A 29.4 ml sample of 0.347 m triethylamine, (c2h5)3n, is titrated with 0.375 m hydrobromic acid. at the equivalence point, the ph
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!