3 years ago

Advantages and disadvantage of chemistry

Chemistry

2 answers:

katen-ka-za [31]3 years ago

6 0

Chemistry is really fun sometimes but it can also be extremely hard

klemol [59]3 years ago

3 0

Answer:

it's good because u learn about chemicals and fumes

irs bad because some smells are just horrible

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liberstina [14]

Answer:

221.5 g

Explanation:

if you want a step by step problem feel free to ask

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3 years ago

Energy has both wavelength and particle-like properties, but electrons have only particle like properties, true or false

dangina [55]

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3 years ago

What is the molarity of a solution that contains 20 grams of salt dissolved in 3.0 L of solution? The molar mass of water is 18g

natita [175]

Number of moles :

n = mass solute / molar mass

n = 20 / 18

n = 1.111 moles

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4 years ago

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eimsori [14]

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3 years ago

How many formula units of silver fluoride, AgF, are equal to 42.15 g f this substance?

s2008m [1.1K]

Answer:

1.99 x 10²³ formula units

Explanation:

Given parameters:

Mass of AgF = 42.15g

Unknown:

The amount of formula units

Solution:

To solve this problem, we set out by find the number of moles in this compound from the given mass.

Number of moles = $\frac{mass}{molar mass}$

molar mass of AgF = 107.9 + 19 = 126.9g/mol

Number of moles = $\frac{42.15}{126.9}$ = 0.33 moles

1 mole of a substance = 6.02 x 10²³ formula units

0.33 moles of AgF = 0.33 x 6.02 x 10²³ = 1.99 x 10²³ formula units

7 0

3 years ago

Advantages and disadvantage of chemistry​

Advantages and disadvantage of chemistry