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
MakcuM [25]
3 years ago
15

5. A sample of pure acetyl salicylic acid had a mass of 0.268 grams. It was dissolved in NaOH and diluted to 500.00mL in a volum

etric flask.
a. What is the concentration of aspirin in the solution?
b. If an 8.00mL sample of this solution was pipetted into a volumetric flask and diluted to 100.00mL, what is the concentrated of aspirin after this dilution?
Chemistry
1 answer:
Elza [17]3 years ago
4 0

Answer:

a. 5.36x10⁻⁴ g/mL

b. 4.29x10⁻⁵ g/mL

Explanation:

As the units for concentration are not specified, I'll respond using g/mL.

a. We <em>divide the sample mass by the final volume</em> in order to <u>calculate the concentration</u>:

  • 0.268 g / 500 mL = 5.36x10⁻⁴ g/mL

b. We can use C₁V₁=C₂V₂ for this question:

  • 8.00 mL * 5.36x10⁻⁴ g/mL = C₂ * 100.00 mL
  • C₂ = 4.29x10⁻⁵ g/mL
You might be interested in
Plz help (it’s a picture)
Feliz [49]
Umm I’ll figure it out rn! Will come back in 1 min
7 0
3 years ago
What does Avogadro's law state and what is the formula​
sertanlavr [38]

The law is approximately valid for real gases at sufficiently low pressures and high temperatures. The specific number of molecules in one gram-mole of a substance, defined as the molecular weight in grams, is 6.02214076 × 1023, a quantity called Avogadro's number, or the Avogadro constant.

5 0
2 years ago
Read 2 more answers
How might the eruption of a large volcano affect weather for years to come
netineya [11]
The ashes released from the volcano could lead to acid rain and ash clouds.
3 0
3 years ago
Which pair of elements are the most similar? A. Ca and F B. Na and Cl C. Ne and Ar D. K and Ca
Vinil7 [7]

Answer:

c

Explanation:

8 0
3 years ago
Calculate the volume of the gas, in liters, if 1.75 mol has a pressure of 1.28 atm at a temperature of -7 ∘C
Alexandra [31]

Answer:

A sample of an ideal gas has a volume of 2.21 L at 279 K and 1.01 atm. Calculate the pressure when the volume is 1.23 L and the temperature is 299 K.

 

You need to apply the ideal gas law PV=nRT

 

You have the pressure, P=1.01 atm

you have the volume, V = 2.21 L

The ideal gas constant R= 0.08205 L. atm/ mole.K at  273 K

 

find n = PV/RT = (1.01 atm x 2.21 L / 0.08205 L.atm/ mole.K x 273 K)

 

n= 0.1 mole, Now find the pressure for n=0.1 mole, T= 299K and

L=1.23 L

 

P=nRT/V= 0.1mole x 0.08205 (L.atm/ mole.K x 299 k)/ 1.23 L

= 1.994 atm

Explanation:

6 0
2 years ago
Other questions:
  • If the distillation is performed in full as described in the experimental procedure (including the redistillations of fractions
    11·1 answer
  • What is the name of the pores, or holes, on the outer layer of the sponge that take water in?
    7·1 answer
  • A scientist discovered a microscopic unicellular organism with no nucleus which of the following correctly describes the organis
    11·2 answers
  • For cobalt, Co, the heat of vaporization at its normal boiling point of 3097 °C is 389.1 kJ/mol.The entropy change when 1.85 mol
    5·1 answer
  • In Experiment 9, a 1.05 g sample of a mixture of NaCl (MW 58.45) and NaNO2 (MW 69.01) is reacted with excess sulfamic acid. The
    13·1 answer
  • Balance the equation pls
    11·1 answer
  • What is a hydrocarbon? What is a hydrocarbon? It is a molecule derived from hydrogen synthesis. It is a wet carbon atom It is an
    10·1 answer
  • What is the one variable that is changed in the experimental group called? the placebo the independent variable the control grou
    8·1 answer
  • Birds' feet change slowly over time, depending on their habitat. Ptarmigans live in snowy areas and eat pine needles, twigs, and
    14·1 answer
  • Kelli and Jarvis are members of the stage crew for the Variety Show. Between acts, they must quickly move a Baby Grand Piano ont
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!