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
Juli2301 [7.4K]
3 years ago
8

Determine the molarity of a solution prepared by dissolving 141.6 g of citric acid , c3h5o(cooh)3 , in water and then diluting t

he resulting solutionto 3500.0ml
Chemistry
1 answer:
gogolik [260]3 years ago
3 0
   The molarity  of a solution  prepared  by dissolving  141.6g of citric acid in water is calculated as  below

find the the number  of moles

moles= mass/molar mass

= 141.6 g/ 192 g/mol = 0.738  moles

molarity= moles/molar mass

= 0.738/3500 x1000  = 0.21 M
You might be interested in
How acids cause burns. Please explain
Tju [1.3M]
They cant hold the pressure
4 0
3 years ago
Read 2 more answers
How many grams of potassium carbonate are needed to make 300ml of a 4.5M solution?
kenny6666 [7]

Answer:

186.3g

Explanation:

4.5moles of K₂CO₃  is in 1000ml

? moles of K₂CO₃ is in 300 ml

(4.5 × 300)/ 1000 = 1.35 moles of K₂CO₃

1 mole of K₂CO₃ = (39 × 2) + 12 + (16 × 3) = 78 + 12 + 48 = 138g

1.35 moles of K₂CO₃  = ?

= (1.35 × 138)/1 = 186.3g

4 0
3 years ago
What is a dominant trait and a recessive trait
guajiro [1.7K]

Answer:

Dominant traits are always expressed when the connected allele is dominant, even if only one copy exists. Recessive traits are expressed only if both the connected alleles are recessive.

Explanation:

Freckles, cleft chin and dimples are all examples of a dominant trait.

5 0
3 years ago
Read 2 more answers
30cm^3 of a dilute solution of Ca(OH)2 required 11 cm^3 of 0.06 mol/dm^. Hcl for complete neutralization. Calculate the concentr
Alenkasestr [34]

Answer: Thus concentration of Ca(OH)_2 in mol/dm^3  is 0.011 and in g/dm^3 is 0.814

Explanation:

To calculate the concentration of Ca(OH)_2, we use the equation given by neutralization reaction:

n_1M_1V_1=n_2M_2V_2

where,

n_1,M_1\text{ and }V_1 are the n-factor, molarity and volume of acid which is HCl

n_2,M_2\text{ and }V_2 are the n-factor, molarity and volume of base which is Ca(OH)_2

We are given:

n_1=1\\M_1=0.06mol/dm^3\\V_1=11cm^3=0.011dm^3\\n_2=2\\M_2=?\\V_2=30cm^3=0.030dm^3         1cm^3=0.001dm^3

Putting values in above equation, we get:

1\times 0.06mol/dm^3\times 0.011dm^3=2\times M_2\times 0.030dm^3\\\\M_2=0.011mol/dm^3

The concentration in g/dm^3 is 0.011mol/dm^3\times 74g/mol=0.814g/dm^3

Thus concentration of Ca(OH)_2 is 0.011mol/dm^3 and 0.814g/dm^3

4 0
3 years ago
How does nuclear fission of Uranium - 234 result in electricity being generated?
nevsk [136]

Answer:

See explanation

Explanation:

The use of Uranium - 234 to generate electricity depends on a fission reaction. The uranium nuclide is bombarded by fast moving neutrons leading to a chain reaction. Control rods and moderators are used to keep the nuclear reaction under control.

As the nuclear reaction proceeds, heat is generated and steam is consequently produced. This steam is used to turn a turbine and electricity is thereby generated.

7 0
3 years ago
Other questions:
  • A 30.60 g sample of a substance is initially at 25.6 °c. after absorbing 2811 j of heat, the temperature of the substance is 175
    7·1 answer
  • #of valance electrons metal<br>​
    7·2 answers
  • What is a system called when neither energy nor matter is exchanged between the system and the surroundings?
    5·1 answer
  • __________________ is the transfer of heat energy through the movement of particles in a gas or liquid. The warmer parts move up
    14·1 answer
  • what do automobile makers mean when they say their cars are more powerful than their competitors' cars
    12·1 answer
  • BRAINLIESTTT ASAP!!! PLEASE HELP ME :)
    14·1 answer
  • Given its reactive nature, oxygen is essential to cellular metabolic reactions. Peroxisomes use oxygen to break down fatty acids
    12·1 answer
  • ASAP 1st CORRECT ANSWER GETS BRAINLIEST The diagram shows changes of state between solid, liquid, and gas. The atoms of a substa
    12·2 answers
  • How is the atomic radius calculated?​
    7·1 answer
  • An unknown gas effuses at a rate of 2.0 times the rate of Cl₂. What is the molar mass of the unknown gas?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!