idk man i just signed up so u could tell me the answer man
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Answer:
It is a easy answer you are a noob in this question the properties of water help by giving them water you fool
Answer:
0.68L
Explanation:
First, let us calculate the number of mole in 100g of NaCl. This is illustrated below:
Molar Mass of NaCl = 23 + 35.5 = 58.5g/mol
Mass of NaCl = 100g
Number of mole of NaCl =?
Number of mole = Mass/Molar Mass
Number of mole of NaCl = 100/58.5
Number of mole of NaCl = 1.709 mole
Now we can find the volume of the solution as follow:
Mole = 1.709 mole
Molarity = 2.50M
Volume =?
Molarity = mole /Volume
Volume = mole /Molarity
Volume = 1.709/2.5
Volume = 0.68L
The standard units of measurement are particularly important to scientists because they make the result more accurate and precise.
When the average value of the different measurements is similar to the correct value then the measurement is said to be accurate and the phenomenon is said to be accurate.
When the values of measurement are close to each other then the result is said to be precise and the phenomena are said to be precise and need to do for the better accuracy of results.
Therefore, they make the result more accurate and precise.The standard units of measurement are particularly important to scientists.
Learn more about accuracy and precision, here:
#SPJ2
Answer:
Explanation: The standred units of measurments are important to scientists because they are the same measurments that all scientist take to make sure that they all have the correct results.
find angle ABE.
Answer:
The measure of angle ABE is 27°.
Explanation:
Consider the below figure attached with this question.
Given information: ∠ABE=2n+7 and ∠EBF=4n-13.
From the below figure it is clear that ∠ABE and ∠EBF are congruent.
Isolate variable terms on one side.
Divide both sides by 2.
The value of n is 10.
We need to find the measure of ∠ABE.
Therefore, the measure of angle ABE is 27°.
The measure of angle ABE is 27°.
Since the angles are congruent, therefore, ∠ABE=2n+7 and ∠EBF = 4n-13 will be equated to each other.
This will be;
2n+7 = 4n-13
Collect like terms
4n-2n = 7+13
2n = 20
Divide both sides by 2.
2n/2 = 20/2
n = 10
Therefore, the value of n is 10.
Since angle ABE = 2n + 7
ABE = 2[10] + 7
= 20 + 7 = 27°.
Therefore, the measure of angle ABE is 27°
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