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Aleksandr [31]
3 years ago
11

KMnO4 + KCI + H2SO4MnSO4 + K2S04+ Cl₂ + H₂O​

Chemistry
1 answer:
yKpoI14uk [10]3 years ago
7 0

Answer:

Balancing the equation

2KMnO₂+10KCl+8H₂SO₄⇒2MnSO₄+6K₂SO₄+8H₂O+5Cl₂

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The recommended dose of aspirin will yield approximately 100.0 micrograms/mL in the blood. How many molecules of aspirin (C9H8O4
BigorU [14]

Answer:

3.34x10¹⁶ molecules of aspirin are in a drop of blood

Explanation:

The recomended dose of aspirin in blood is 100.0μg/mL =

1x10⁻⁴g aspirin / mL of blood.

In a drop (0.100mL) there are:

0.100mL ₓ (1x10⁻⁴g aspirin / mL of blood) = 1x10⁻⁵g aspirin.

Molecular mass of aspirin is:

9C = 12.01g/mol ₓ 9 = 108.09g/mol

8H = 1.01g/mol ₓ 8 = 8.08g/mol

4O = 16g/mol ₓ 4 = 64g/mol

108.09 + 8.08 + 64 = 180.17g/mol

Thus, moles of aspirin in 1x10⁻⁵g are:

1x10⁻⁵g ₓ (1mol / 180.17g) = 5.55x10⁻⁸ moles of aspirin

In 1 mole, you have 6.022x10²³ molecules, thus:

5.55x10⁻⁸ moles of aspirin ₓ (6.022x10²³ molecules / 1 mole ) =

<h3>3.34x10¹⁶ molecules of aspirin are in a drop of blood</h3>
7 0
3 years ago
Which of these would have the lowest kinetic energy?
Lunna [17]
The answer is ice water, since the particles of a solid have very low kinetic energy.
4 0
4 years ago
Read 2 more answers
The substitution reaction of toluene with Br2 can, in principle, lead to the formation of three isomeric bromotoluene products.
GREYUIT [131]

Answer:

See explanation and image attached

Explanation:

Aromatic hydrocarbons undergo electrophillic substitution. Usually, substituted benzene is more or less reactive to electrophillic substitution compared to unsubstituted benzene.

Substituents on the benzene ring tend to direct the incoming electrophile during electrophillic substititution. The presence of the -CH3 group on toluene directs the incoming Br electrophile to the ortho/para position.

Where the incoming electrphile E is Bromine, we can see that in the ortho/ para product, the electron pushing -CH3 stabilizes the resonance structure formed and increases electron density at the ortho/para position via resonance compared to the meta product as we can see from the image attached. Hence, the ortho and para products predominate over meta products.

Image credit: Chemistry steps

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3 years ago
During photosynthesis ____ energy is transferred into chemical energy.
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Photosynthesis converts solar energy into chemical energy title
5 0
3 years ago
How many grams are in 2.3 x 10^-4 moles of Ca3(PO4)2
OLEGan [10]
Molar mass 

Ca₃(PO₄)₂ = 310 g/mol

1 mole -------------------> 310 g
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m = 2.3x10⁻⁴ * 310 / 1

m = 0.0713 g 

hope this helps!
3 0
3 years ago
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