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
sattari [20]
3 years ago
9

Given: K for acetic acid is 1.8 X 10–5You are titrating 0.108 M NaOH into 142.0 ml of acetic acid of unknown concentration. You

have an indicator that will change color when equivalence is reached. At equivalence, you have added 72.0 ml of the base. Calculate molarity of the acid. What is the pH of the solution at the equivalence point? Now that you know the molarity of the acid, find pH when you mix 50.0ml of the acid with 75.0 ml of the same NaOH solution. Now you are working with different acid and base, both weak. K for the acid is 2.25 X 10-5. You mix 63 ml of 0.275 M acid with 55.0 ml of a weak base of concentration 0.188 M. Find pH
Chemistry
1 answer:
KonstantinChe [14]3 years ago
8 0

Answer:

Explanation:0.493 M NaOH means 0.493 mol NaOH/L

mols

mols = ------ x L

L

mols = M x V

In a titration procedure, 40.57 mL of 0.493 M NaOH solution was used. How many mols NaOH did this volume of NaOH solution contain?

mols = M x V

0.493 mols NaOH

mols = ----------------------- x 0.04057 L

L

mols = 0.0200 mols NaOH

You might be interested in
Explain HOW this chemical reaction is NOT balanced correctly.
NeTakaya

Answer: there is more atoms of each element on the right.

Explanation:

On the left of the arrow you have:

Si-1

F-4

H-4

O-2

On the right of the arrow you have:

Si-3

F-6

H-8

O-4

A balanced equation always has the same amount of each element on the left of the arrow (the reactants) as the right (the products). This isn’t balanced because you have a lot more of each element on the right.

5 0
3 years ago
Read 2 more answers
What characteristics of fish might allow them to survive
uranmaximum [27]
The fact that they lay like 300 eggs. And maybe that they are fast.
3 0
4 years ago
Read 2 more answers
A quantity of monatomic ideal gas expands adiabatically from a volume of 2.0 liters to 6.0 liters. if the initial pressure is p0
alukav5142 [94]

Answer:

1/3p0

Explanation:

The combined gas law:

P1V1/T1 = P2V2/T2, where P, V and T are Pressure, Volume, and Temperature.  Temperature must always be in Kelvin.  The subscriopts 1 and 2 are for initial (1) and final (2) conditions.

In this case, temperature is constant (adiabatically). V1 = 2.0L and V2 = 6.0L.  I'll assume P1 = p0.

Rearrange the combined gas law to solve for final pressure, P2:

P1V1/T1 = P2V2/T2

P2 = P1*(V1/V2)*(T2/T1)  [Note how I've arranged the volume and temoperature terms - as ratios.  This helps us understand what the impact of raising or lowering one on the variables will do to the system].

No enter the data:

P2 = P1*(V1/V2)*(T2/T1):  [Since T2 = T1, the (T2/T1) terms cancels to 1.]

P2 = p0*(2.0L/6.0L)*(1)

P2 = (1/3)p0

The final pressure is 1/3 the initial pressure.

7 0
2 years ago
How many grams of carbon (C) would be present in carbon monoxide (CO) that contains 2.666 grams of oxygen (O)? For example if th
oee [108]

Given :

Mass of oxygen containing carbon monoxide (CO) is 2.666 gram .

To Find :

How many grams of carbon (C) would be present in carbon monoxide (CO) that contains 2.666 grams of oxygen (O) .

Solution :

By law of constant composition , a given chemical compound always contains its component elements in fixed ratio (by mass) and does not depend on its source and method of preparation.

So , volume of solution does not matter .

Moles of oxygen , n=\dfrac{2.666}{16}=0.167\ mole .

Now , molecule of CO contains 1 mole of C .

So , moles of C is also 0.167 mole .

Mass of carbon , m=12\times 0.167=2\ g .

Therefore , mass of carbon is 2 grams .

Hence , this is the required solution .

5 0
3 years ago
ANSWER THIS QUESTION AND GET 10 POINTS AND BRAINLEST
elena55 [62]

Answer:

Its highly basic

4 0
3 years ago
Read 2 more answers
Other questions:
  • 3 & 4 Help pleaseeeee
    14·1 answer
  • What is the standard measurement for gas pressure in atm?
    13·1 answer
  • Does Helium Have Chemical Properties? Helium doesn't react with other substances. Is it still accurate to say that helium has no
    8·1 answer
  • How many significant figures are in the measurement 0.020 km?
    15·1 answer
  • Is freshly squeezed orange juice a single element?
    8·1 answer
  • Which best explains the difference between a ball-and-stick model of a chemical compound and a space-filling model?
    5·2 answers
  • If 0.507J of heat leads to a 0.007 degree C change in water, what mass is present?
    5·1 answer
  • A person rides in an elevator.
    5·2 answers
  • What type of solution is seltzer water? a liquid-liquid b metal-liquid c gas-liquid
    10·2 answers
  • Write out the mechanism for the reaction of the alkene side product with concentrated hydrochloric acid.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!