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
hichkok12 [17]
3 years ago
5

1. In apothecaries' measures: 1 scruple = 20 grains, 1 ounce = 480 grains, 1 oz = 28.34 g

Chemistry
1 answer:
laila [671]3 years ago
4 0

Answer:

5.89 g × 10⁶ μg

Explanation:

Step 1: Convert 5.00 scruples to grains

We will use the conversion factor 1 scruple = 20 grains.

5.00 scruple × 20 grain/1 scruple = 100 grain

Step 2: Convert 100 grains to ounces

We will use the conversion factor 1 oz = 480 grains.

100 grain × 1 oz/480 grain = 0.208 oz

Step 3: Convert 0.208 oz to grams

We will use the conversion factor 1 oz = 28.34 g.

0.208 oz × 28.34 g/1 oz = 5.89 g

Step 4: Convert 5.89 g to micrograms

We will use the conversion factor 1 g = 10⁶ μg.

5.89 g × 10⁶ μg/1 g = 5.89 g × 10⁶ μg

You might be interested in
Recognize What do all eukaryotic cells have in common?
UkoKoshka [18]

They have a nucleus and its organelles in common.
7 0
3 years ago
The owner of a window-treatment company wants to design shades that will cover the windows of a house. The shades should also wa
Juliette [100K]

Answer:

Black and Textured

Explanation:

Dark colors absorb more energy than light colors, and reflect less energy than light colors.

Rough surfaces absorb more energy than smooth surfaces, and reflect less energy than smooth surfaces.

8 0
3 years ago
Read 2 more answers
Two linear hydrocarbons, Hexane (C6H14) and Heptane (C7H16), form pretty much an ideal solution at any composition. A solution i
Anettt [7]

Answer:

y_{C_6H_{14}}=0.92

Explanation:

Hello,

At first, we compute liquid-phase molar fractions:

n_{C_6H_{14}}=463.96 g*\frac{1mol}{86g} =5.3949molC_6H_{14}\\n_{C_7H_{16}}=667.71 g*\frac{1mol}{100g} =6.6771molC_7H_{16}\\x_{C_6H_{14}}=\frac{5.3949}{5.3949+6.6771} =0.447\\x_{C_7H_{16}}=1-x_{C_6H_{14}}=0.553

Now, by means of the fugacity concept, for hexane, for instance, we have:

f_{C_6H_{14}}^V=f_{C_6H_{14}}^L\\y_{C_6H_{14}}p_T=x_{C_6H_{14}}p_{C_6H_{14}}

In this manner, at 25 °C the vapor pressure of hexane and heptane are 0.198946 atm and 0.013912 atm repectively, thus, the total pressure is:

p_T=x_{C_6H_{14}}p_{C_6H_{14}}+x_{C_7H_{16}}p_{C_7H_{16}}\\p_T=0.447*0.198946 atm +0.553*0.013912 atm=0.096622atm

Finally, from the hexane's fugacity equation, we find its mole fraction in the vapour as:

y_{C_6H_{14}}=\frac{x_{C_6H_{14}}p_{C_6H_{14}}}{p_T}=\frac{0.447*0.198946 atm}{0.096622atm} \\y_{C_6H_{14}}=0.92

Best regards.

3 0
3 years ago
Read 2 more answers
How is the law of conservation of mass applied to<br> ecology?
zmey [24]

Answer:

The Law of Conservation of Mass tells us that matter is neither created nor destroyed during a chemical reaction. ... The Law of Conservation of Mass applies as the total mass of the products is equal to the total mass of the reactants.

Explanation:

7 0
3 years ago
Read 2 more answers
Which of the following statements contains supporting evidence for the Big Bang Theory?
m_a_m_a [10]
Without the statements, I can't specifically answer your question. But, I can present the largest piece of evidence we have for the Big Bang Theory.

Over the course of <em>many many </em>years, we have noticed something. Everything is expanding outwards. 

We can observe this, and realise that since things are expanding outwards, or, away from something, everything once came from a fixed point. 

Life and the universe started from one point, and every single thing in our cosmos is still expanding away from it. =)
5 0
4 years ago
Other questions:
  • A sample of atmospheric gas collected at an industrial site is stored in a 250 mL amber glass bottle that has a pressure of 1.02
    15·2 answers
  • A woman informs her engineer husband that "hot water will freeze faster than cold water." He calls this statement nonsense but h
    10·1 answer
  • A fact is something that has been proven to be true.
    12·2 answers
  • Explain the trends you observed for bromine, chlorine, magnesium, sodium, and phosphorus. Explain whether they matched the predi
    10·2 answers
  • PLLEEEEEESE help idk where to look for answers
    7·1 answer
  • The forces between water molecules are stronger than the forces between ethanol molecules. Which liquid would probably be most d
    5·2 answers
  • An electrically neutral atom of oxygen has eight electrons. What other facts do you know for sure about this atom? 1.) there are
    9·2 answers
  • True or False? In plant cells, the nucleus contains DNA? HELP
    12·1 answer
  • A car accelerates away from the starting line at 3.6 m/s2 and has the mass of 2400 kg. What is the net force acting on the vehic
    11·1 answer
  • How do scientists test for a substance’s flammability in a substance
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!