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
kykrilka [37]
3 years ago
5

6 tons of pig ovaries were required to extract 13.0 mg of estrone. Assuming complete isolation of the hormones was achieved, cal

culate the mass percentage of estrone in the original tissue.
Chemistry
1 answer:
jasenka [17]3 years ago
8 0
One US ton will be equal to 907.185 kg and 1kg will be equal to 10^6mg.

<span>mass percentage of estrone= </span>estrone mass/<span>tissue mass * 100%
</span>mass percentage of estrone= 13mg/ (6 tons * 907.185 kg /ton * 10^6mg/kg) * 100%
mass percentage of estrone=0.238 *10^{-6} %
You might be interested in
Which of the following is NOT a true statement?
Artyom0805 [142]

Answer:

c is not a true statement

8 0
3 years ago
Read 2 more answers
List the methods of separation used in water purification...... ( HELP PLEASE )
lawyer [7]

Answer:

I can list four. These are the main ones.

Bolling

Filtration

Distillation.  

Chlorination

Explanation:

3 0
3 years ago
Scientists' belief that an atom is a solid sphere, is good enough to explain; PLZ I HAVE LESS TIME!!!!
Natasha2012 [34]

Answer:

Its quite vague, instead you could say an atom is the smallest building block which further consists of subatomic particles like protons, neutrons and electrons :)

Hope thi helps :) and I'd appreciate if you'd mark brainliest because ive been stuck on the same rank for quite a long time :(

7 0
3 years ago
How many atoms are in the chemical formula shown? HCIO3
Marat540 [252]

Answer:

5

Explanation:

chemical formulas show what atoms are in a molecule.  In this case there is 1 hydrogen (H), 1 chlorine (Cl), and 3 oxygens (O).  The 3 behind the oxygen is a subscript and tells us that there are 3 oxygen atoms.

Another example is H2O which as 3 atoms. 2 hydrogens (H) and 1 oxygen (O).  This formula has a subscript 2 behind the hydrogen showing that there are 2 hydrogens.

3 0
3 years ago
An order is given to administer methylprednisolone, an anti-inflammatory drug, by IV at a rate of 36 mg every 30. min . The IV b
tigry1 [53]

Answer:

0.0192 mL per min.

Explanation:

IV rate = 36 mg per 30 min.

IV concentration = 125 mg per 2.0 mL

36 mg per 30 min. IV rate = 36/30 = 1.2 mg per min

If 125 mg methylprednisolone is present in 2.0 mL of the IV nag, how many mL would contain 1.2 mg?

      = 2x1.2/125

                        = 0.0192 mL

<em>Therefore, the flow rate of the IV must be </em><em>0.0192 mL per min</em><em>. in order to be able to deliver 36 mg per 30 min.     </em>

7 0
2 years ago
Other questions:
  • 10 points
    15·1 answer
  • A gas occupies a volume of 750 mL at 101.3 kPa. What pressure (in kPa) is needed to decrease the volume to 250mL?
    7·1 answer
  • What best describes a solution ?
    7·2 answers
  • Please Help! 30 PTS. for correct answer and best explanation!
    13·2 answers
  • What percentage of silty clay loam is slit?
    11·1 answer
  • The mass of calcium having the same number of particles as 20.1g of mercury
    15·1 answer
  • Can the ratio of hydrogen to oxygen change if a solute is dissolved in the water
    13·1 answer
  • When 50 cm³ of hydrocarbon Y is burnt, it reacts with exactly 300 cm³ of oxygen to form 200 cm³ of carbon dioxide. Water is also
    9·2 answers
  • 6. If the broken wire of the top branch
    14·1 answer
  • What branch of chemistry studies the flow of electrons?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!