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
Tju [1.3M]
4 years ago
13

A 17.85 mL volume of nitric acid neutralizes 25.00 mL of 0.150 mol/L sodium hydroxide. What is the concentration of the nitric a

cid when the pH is exactly 7.0?
Chemistry
2 answers:
Alja [10]4 years ago
7 0

Answer:

0.210 mol/L

Explanation:

NaOH(aq) + HNO3(aq) = HOH + NaNO3(aq)

25ml             17.85ml

6.150mol/L

NaOH = CxV = 0.150mol/L x 25 = 3.75mmol x 1/1 = 3.75mmol HNO3

C=n/V  = 3.75mmol/17.85ml = 0.210 mol/L

djverab [1.8K]4 years ago
3 0

Answer:

0.005 M

Explanation:

Nitric acid is a strong acid, so it's concentration is equal to the amount of [H+] ions in solution. NaOH is also a strong base, meaning the same thing but with it's [OH-] ions. In order for a base to be neutralized, the number [H+] ions inserted must be equal to the number of [OH-] ions present.

Sodium Hydroxide Volume: 25 mL / 1000 = 0.025 L

Sodium Hydroxide Molarity: 0.15 mol/L * 0.025 L = 0.00375 M.

Now we can use M1V1=M2V2 to find the concentration of the nitric acid:

(0.025)(0.00375)=(17.85/1000)(X)

X = 0.005M

You might be interested in
A piece of iron can change in different ways. How is iron bending different from iron rusting
fenix001 [56]
Iron bending is just a physical change because the iron has only changed shape but there is no new substance. Iron rusting is a chemical change because there is a new substance which is rust.
7 0
4 years ago
Draw the dot structure of CX4
hichkok12 [17]

Refer to the attachment

7 0
3 years ago
1. Draw a wedge/dash structure for trans-1,2-dimethylcyclohexane.
Angelina_Jolie [31]

Answer:

The structure with the ring flipped is the most stable

Explanation:

We have the  trans 1,2 - dimethylcyclohexane. With the wedge/dash structure we could not figure is this form is stable (If we do a comparison with the cis structure). But when we do a chair structure and ring flipped structure, this is easier to look.

The picture attached shows the structures, they are labeled as 1, 2 and 3, according to this problem.

In the chair structure, according to the picture below, you can see that both methyls are heading in the axial positions of the ring (One facing upward and the other downward). This is pretty stable, however, when the methyls are in those positions, the methyl position 1, can undergoes an 1,3 diaxial interactions with the hydrogens atoms (They are not drawn, but still are there), so this interaction makes this structure a little less stable that it can be.

On the other side, the ring flipped structure, we can see that both methyls are in the equatorials positions of the ring, and in these positions, it can avoid the 1,4 diaxial interactions with the hydrogens atoms, making this structure the most stable structure.

Hope this helps

6 0
3 years ago
Why does a scientist form a hypothesis?
Kryger [21]
Answer: B (to provide a statement that can be tested with an experiment
8 0
3 years ago
X2o3 express you answer as a whole number
kobusy [5.1K]
 <span>2.40 - 1.68 =0.72 g of oxigen 
moles = 0.72/16 g/mol=0.045 

moles x = 1.68/ 55.9=0.03 

0.03/0.03 = 1 = x 
0.045 / 0.03 = 1.5 = O 

to get whole numbers multiply by 2 

x2O3 

X2O3 +3 CO = 2 X + 3 CO2</span>
4 0
4 years ago
Other questions:
  • Is carbon dioxide a good absorber of infrared radiation
    9·1 answer
  • you are given 500 mL of a 5M stock solution of ammonium chloride but for your experiment, you only need 100 mL of a 0.65M soluti
    6·1 answer
  • • When one organism eats another organism, what % of the energy from the organism consumed is actually available to the consumer
    7·1 answer
  • Heterotrophic bacteria obtain food by
    5·1 answer
  • What fuel source is Jan using if she exercises at 85% of her maximum aerobic capacity?
    13·1 answer
  • Help me please!! :D​
    14·1 answer
  • List four observations that suggest chemical change is occurring
    7·1 answer
  • List two adaptations the cave glow worm has for capturing prey in a cave
    10·1 answer
  • The mass of calcium having the same number of particles as 20.1g of mercury
    15·1 answer
  • 100 POINTS!!!!!!! FAST PLEASE
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!