3 years ago

What is difference between primary and standard solution?

1 answer:

7 0

A standard solution is solution that is a containing a precisely known concentration of an an element. Primary it's typically a reagent which can ve weighed very easily, and which is so pure that the weight of it is truly representative of the number of molecules that it contained

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In the ground state, an atom of which element has two valence electrons?

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I would say Ni so yeah thats ur answer

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Which element(s) is/are not balanced in this equation?

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A glucose solution that is prepared for a patient should have a concentration of 180 g/L. A nurse has 18 g of glucose. How

Irina-Kira [14]

<h3>Answer:</h3>

0.10 L

<h3>Explanation:</h3>

The concentration of glucose is given as 180 g/L

The mass of glucose is 18 g

Concentration in g/L is calculated by dividing mass of the solute by the volume of the solution.
When calculating molarity on the other hand, we divide number of moles of the solute by the volume of the solution.

Concentration in g/L = Mass of solute ÷ Volume

Rearranging the formula,

Volume = Mass of the solute ÷ concentration

= 18 g ÷ 180 g/L

= 0.10 L

Therefore, volume of water is 0.10 L

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3 years ago

Riley is doing an experiment working with friction. He wants to find two ways to modify an object that could increase or decreas

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Riley can either change the surface area of the object or can change the slipperiness of the material.

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2 years ago

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The expression for 11 million km in scientific notation is

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I think.

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