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
grin007 [14]
3 years ago
10

You normally take 2 Ibuprofen (C13H18O2) when you have pain. Each one is 250 g. How many moles of ibuprofen do you take?

Chemistry
1 answer:
weqwewe [10]3 years ago
4 0

Answer:

2.4mol

Explanation:

In order to calculate numbers of moles we have to divide the given mass by the molar mass of the substance (ibuprofen) n= m/M

To calculate the molar mass we have

C13= 12*13= 156

H18= 1*18=18

O2= 16*2 =32

Molar mass M = 153+18+32= 206g

Given the mass m= 250g per tablet

Hence number of moles in one tablet is n= 250/206= 1.2 mol

Therefore the total number of ibuprofen you took is 1.2*2 (for the two tablets) = 2.4 moles

You might be interested in
Classify each of the following as a pure substance or a mixture. If a mixture, indicate whether it is homogeneous or heterogeneo
Mashutka [201]

Answer:

a) Heterogeneous mixture (b) Homogenous mixture (c) Pure substance (d) Pure substance

Explanation:

Homogenous mixtures contains mixture of substances with similar proportions while Heterogenous mixture contains substances with a varying proportion.

8 0
3 years ago
How is a polymer like a chain of paper clips
velikii [3]
A polymer is a really long chain of smaller molecules (monomers). It's similar to a chain of paper clips because all of the little monomers will attach to each other, forming a long strain.
3 0
3 years ago
What do dwarf planets, asteroids, and comets have in common
adell [148]

Answer:

their all small and arent considered planets

hope this could help

Explanation:

6 0
3 years ago
Read 2 more answers
Assuming the same temperature and pressure for each gas, how many milliliters of carbon dioxide are produced from 16.0 mL of CO?
Vlada [557]

Answer:

V_{CO_2}=16.0mL

Explanation:

Hello,

In this case, given that the same temperature and pressure is given for all the gases, we can notice that 16.0 mL are related with two moles of carbon monoxide by means of the Avogadro's law which allows us to understand the volume-moles relationship as a directly proportional relationship. In such a way, since in the chemical reaction:

2CO(g)+O_2(g)\rightarrow 2CO_2(g)

We notice two moles of carbon monoxide yield two moles of carbon dioxide, therefore we have the relationship:

n_{CO}V_{CO}=n_{CO_2}V_{CO_2}

Thus, solving for the yielded volume of carbon dioxide we obtain:

V_{CO_2}=\frac{n_{CO}V_{CO}}{n_{CO_2}} =\frac{2mol*16.0mL}{2mol}\\ \\V_{CO_2}=16.0mL

Best regards.

4 0
3 years ago
An atom has four electrons in its valence shell. What types of covalent bonds is it capable of forming?
Ierofanga [76]

Answer:

The answer to your question is below

Explanation:

An atom with four electrons in its valence shell is capable of forming:

single bonds and atom with the described characteristics, can form 4 single bonds or a combination of single bonds and double or triple bonds. Ex alkanes

double bonds this atom can form one double bond and two single bonds or two double bonds. Ex alkenes

triple bonds this atom can form one triple bond and one single bond, Ex alkynes.

6 0
3 years ago
Other questions:
  • Hello guys i wanted to ask if anyone could check my answers please :) 10 points
    10·2 answers
  • How many moles of Ag can be produced if 350. g of Cu are reacted with excess AgNO3 according to the equation Cu(s) + 2AgNO3(aq)
    7·2 answers
  • #1: Which of the following is likely to be a polar compound?
    8·1 answer
  • When 1 mol of a fuel burns at constant pressure, it exchanges-3452 kJ of heat and does-11 kJ of workon the surroundings. What ar
    12·1 answer
  • 1. Or what is the steering of a vehicle an example?
    11·1 answer
  • What expression approximates the volume of O2 consumed, measure at STP, when 55 g of Al reacts completely with excess O2?2 Al(s)
    10·1 answer
  • Core electrons shield what from the pull of the nucleus?
    6·1 answer
  • Also write what will happen if you mix ‘recyclable, non-recyclable, liquid, e-waste’ and dump it in the Garbage bins/Garbage roo
    10·1 answer
  • What kind of intermolecular force is KI(aq)​
    15·1 answer
  • HCl + Fe + ____ + H²
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!