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Verizon [17]
3 years ago
7

Type the CONVERSION factor (fraction) to calculate the moles in 15.0 g

Chemistry
1 answer:
kari74 [83]3 years ago
6 0

Explanation:

5g C7H8 / 92g/mole = 0.054moles

total moles = 0.232moles

mole fraction C6H12 = 0.178moles / 0.232moles = 0.767

mole fraction C7H8 = 0.233

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The diagram below shows the branching tree diagram for humans. The text box below it shows the set of derived shared characteris
pentagon [3]

Answer:

I would write "terrestrial/lives on land during all life stages" between the frog and pigeon branches

Explanation:

Jaw evolution has started with fish, so i'd place that before the perch, evolution of four limbs is next and I would plate it between the perch and the frog. Evolution of an egg has ensured that organisms remain terrestrial during all stages of life and don't need to rely on water to lay their eggs. So I would place that between the frog and the pigeon. True mammary glands and true hair, as we know it formed on mammals so i'd place that between the pigeon and the rats (although synapsids evolved similar structures long before birds even existed). And lastly, I would place "walking on two legs" between rats and human branches. Because our ancestors evolved bipedalism relatively late.

6 0
2 years ago
what is the inferred pressure, in million of atmospheres, in Earth's interior at a depth of 2900 kilometers?
NemiM [27]

Answer:

1.4 millions atmospheres

Explanation:

8 0
3 years ago
True or false? Covalent molecules are formed when non-metal atoms share electrons with other non-metal atoms.
Tomtit [17]

Answer:

true

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7 0
3 years ago
Which notation is used to represent a beta particle?
Lapatulllka [165]
The beta particle is represented by the Greek letter <span>β. The beta particle is one of the particles that are emitted during radioactive decay. Beta particles are emitted in the process of beta decay. A beta particle can be in form of an electron or a positron. </span><span />
7 0
3 years ago
Read 2 more answers
How many milligrams of AgNO3 is required to completely react with 81.5 mg LiOH?
BartSMP [9]

Answer:

m_{AgNO_3}=577.6mg

Explanation:

Hello there!

In this case, according to the given chemical reaction, it is first necessary to compute the moles of reacting LiOH given its molar mass:

n_{LiOH}=81.5mg*\frac{1g}{1000mg}*\frac{1mol}{23.95g}  =0.0034molLiOH

Thus, since there is a 1:1 mole ratio between lithium hydroxide and silver nitrate (169.87 g/mol) the resulting milligrams turn out to be:

m_{ AgNO_3}=0.0034molLiOH*\frac{1molAgNO_3}{1molLiOH} *\frac{169.87gAgNO_3}{1molAgNO_3} *\frac{1000gAgNO_3}{1gAgNO_3} \\\\m_{AgNO_3}=577.6mg

Best regards!

7 0
3 years ago
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