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vitfil [10]
3 years ago
14

Willam adds two values following the rules for using significant figures in computations

Chemistry
1 answer:
Aleksandr [31]3 years ago
5 0
Your answer would be, I believe, The same number of decimal places as the least precise values!!!!





Hope that helps!!!
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How many moles of CH4 are in 148.6 g? Round your answer to two decimal places.
Dafna1 [17]

Answer:

9.29 mol

Explanation:

Given data:

Number of moles = ?

Mass = 148.6 g

Solution:

Number of moles = mass/ molar mass

Molar mass of CH₄ = 16 g/mol

Now we will put the values in formula.

Number of moles = 148.6 g/ 16 g/mol

Number of moles = 9.29 mol

Thus 148.6 g have 9.29 moles.

6 0
3 years ago
How many liters of a 4.0 M CaCl2 solution would contain 2 moles of CaCl2?
nekit [7.7K]

Answer:

The answer to your question is 0.5 liters

Explanation:

Data

[CaCl₂] = 4.0 M

number of moles = 2

volume = ?

Process

To solve this problem use the formula of Molarity and solve it for volume, substitute the values and simplify.

-Formula

Molarity = moles / volume

-Solve for volume

Volume = moles / molarity

-Substitution

Volume = 2/4

-Simplification

Volume = 0.5 liters.

5 0
3 years ago
What can longitudinal waves travle though?
Sever21 [200]
They travel through all medium types
5 0
3 years ago
Why is an elements atomic mass not listed as a whole number in the periodic table
FinnZ [79.3K]

Answer:

They aren't listed as a whole number, because an atom's mass is not always a whole number. The mass differs between types of atoms as well.

7 0
4 years ago
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Does the chemical symbol of the element beryllium correspond to the name of the element?
LenKa [72]

Yes it does, its derived from the greek name for beryl, or beryllo

5 0
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