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BigorU [14]
2 years ago
13

You analyze two substances in the laboratory and discover that each has the empirical formula CH2O. You can easily see that they

are different substances because one is a liquid with a sharp, biting odor and the other is an odorless, crystalline solid. How can you account for the fact that both have the same empirical formula?
Chemistry
1 answer:
Anna007 [38]2 years ago
8 0

Explanation:

Molecular formulas is the actual number of atoms of each element in the compound while empirical formulas is the simplest or reduced ratio of the elements in the compound.

Thus,

Molecular mass = n × Empirical mass

The empirical formula is CH_2O

The two substances are differed by their physical properties.

These properties match with :

C_3H_6O_3 in which n =3 is molecular formula for lactic acid. Lactic acid is exists in liquid state and have a biting order.

C_6H_{12}O_6 in which n =6 is molecular formula for glucose. Glucose is exists in crystalline solid form and is odorless.

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A large highway barrier is 1 meter wide, by 1 meter tall, by 2 meters long.
Romashka [77]

Answer:

when mass is  1×10⁴ Kg then density is 5 g/cm³.

when mass is 104 Kg then density is 5.2 × 10⁻² g/ cm³.

Explanation:

Density:

Density is equal to the mass of substance divided by its volume.

Units:

SI unit of density is Kg/m3.

Other units are given below,

g/cm3, g/mL , kg/L

Formula:

D=m/v

D= density

m=mass

V=volume

Symbol:

The symbol used for density is called rho. It is represented by ρ. However letter D can also be used to represent the density.

Given data:

mass = 1×10⁴ Kg

volume= w ×l× h = 1×2× 1 = 2 m³

density = ?

first of all we will convert the given volume meter cube to cm³:

we know that  

2×1000000 = 2 × 10⁶ cm³

Now we will convert the mass into gram.

1 Kg = 1000 g

1×10⁴ × 1000 = 1 ×10⁷ g

Now we will put the values in the formula,

d = m/v

d = 1 ×10⁷ g / 2×10⁶ cm³

d = 0.5 × 10¹ g/cm³

   or

d = 5 g/cm³

If mas is 104 Kg:

104 × 1000 = 104000 g

d= m/v

d = 104000 g / 2×10⁶ cm³

d= 52000 ×10⁻⁶ g/ cm³

d= 5.2 × 10⁻² g/ cm³

7 0
3 years ago
Ill give u brainliest if u help asap
UkoKoshka [18]

Radio waves, radios

microwaves, microwaves

Infrared, tv remotes

5 0
3 years ago
Please help with the question above!
Sergio [31]

Answer:

B

Explanation:

B

7 0
3 years ago
Read 2 more answers
Calculate the molarity of a solution prepared by dissolving 1.495 moles of lioh in enough water to give a final volume of 750. m
zhenek [66]
Molarity can be defined as the number of moles of substance dissolved in 1 L of solution.
In the given question ,
number of LiOH moles - 1.495 mol
Dissolved volume - 750 mL
molarity is calculated for 1 L = 1000 mL
In 750 mL - 1.495 mol of LiOH is dissolved
Therefore in 1000 mL - 1.495 mol / 750 mL x 1000 = 1.99 mol

4 0
2 years ago
Please help! Don’t know if I’m right!!
kompoz [17]

Answer:e

Explanation:

Bananas

4 0
3 years ago
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