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Usimov [2.4K]
3 years ago
8

A compound is a substance composed of two or more elements that are

Chemistry
1 answer:
Anastaziya [24]3 years ago
3 0
Chemically bonded together
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10. 17.5 g of NaOH were dissolved in 350 mL of water. The solution was titrated with HNO3 to a methyl orange endpoint (methyl or
Tomtit [17]

1747.2 ml of HNO3 is required to reach methyl orange endpoint.

Explanation:

Number of moles of NaOH solution having 17.5 gram NaOH in 350ml of water.

Atomic weight of NaOH = 40 g/mol

thus number of moles= 17.5/40

                                      =  0.437 moles

Now the molarity of the solution is calculated as

M=n/C

  = 0.437/O.35 LITRES

  = 1.248 M solution of the base

the molarity of acid is given as 0.25 M of HNO3

From the formula

M1V1=M2V2  we can calculate the volume of HNO3 required to make solution acidic.

1.248*350= 0.25*v2

v2=  1.248*350/0.25

     = 1747.2 ml

Thus 1747.2 ml of HNO3 is required.

3 0
3 years ago
A solution has the 23.22% mass/volume of a particular solvent what is the mass of solute dissolved in 2.5 liter of solvent?
Luda [366]
<span>The answer is m = 580,5 g</span>
8 0
3 years ago
Please compare between physical and chemical properties of matter<br>​
stealth61 [152]

Answer:

A physical property is a characteristic of a substance that can be observed or measured without changing the identity of the substance. Physical properties include color, density, hardness, and melting and boiling points. A chemical property describes the ability of a substance to undergo a specific chemical change

Explanation:

I got this from chem.libretexts.org in case you wanted to know

5 0
3 years ago
a population of cacti in the Sonoran desert all need to get water what type of dispersion will they most likely show A. they wil
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Answer:

Your answer is A. They will show even dispersion to get water.

Explanation:

3 0
4 years ago
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The most common form of energy encountered in chemical reactions is _____. Select one:
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The answer is b heat
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3 years ago
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