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3 years ago

8

What is an experimental error

1 answer:

hammer [34]3 years ago

7 0

Answer:

Explanation: errors in judgment of an observer when reading the scale of a measuring device to the smallest division. 2. Environmental. For example, unpredictable fluctuations in line voltage, temperature, or mechanical vibrations of equipment.

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Help me understand molarity please

Katyanochek1 [597]

Molarity/ molar is a unit of concentration, symbolized by "M". It is the ratio of the number of moles of solute and the volume of solution.

Molarity = Moles of solute ÷ Liters of solution = moles/liter = M
molarity is define as the number of mole of a solute in 1 liter of solution

3 0

3 years ago

Which is a method that can be used to separate the components of a solution?

sashaice [31]

Answer:

Distillation

Explanation:

i hope this helps

4 0

4 years ago

Phương trình hóa học là gì

Doss [256]

Explanation:

sự xuất bản hóa học nào? có một câu hỏi về khoa học mà bạn cần giúp đỡ? tôi luôn ở đây để giúp đỡ!

7 0

3 years ago

2Ag(s) + S(s) -> Ag2S(s)

ArbitrLikvidat [17]

Answer:

Sulphur

Explanation:

Sulphur because we been 2 ag for 1 s therefore 0.312 S will need 0.624 of Ag

6 0

2 years ago

Starting with the stock solution of 6.0 M, how many milliliters of 6.0 M sulfuric acid are needed to make 450 mL of 1.2 M soluti

Lina20 [59]

<u>Answer:</u> The volume of stock solution needed is 90 mL

<u>Explanation:</u>

To calculate the molarity of the diluted solution, we use the equation:

$M_1V_1=M_2V_2$

where,

$M_1\text{ and }V_1$ are the molarity and volume of the stock sulfuric acid solution

$M_2\text{ and }V_2$ are the molarity and volume of diluted sulfuric acid solution

We are given:

$M_1=6.0M\\V_1=?mL\\M_2=1.2M\\V_2=450mL$

Putting values in above equation, we get:

$6.0\times V_1=1.2\times 450\\\\V_1=\frac{1.2\times 450}{6.0}=90mL$

Hence, the volume of stock solution needed is 90 mL

6 0

3 years ago