Answer:
My guess is b or c but its robably wrong
Explanation:
I just also need points sorry <3
Answer:
765.0 grams CuS
Explanation:
The limiting reagent is the reactant which completely reacts before the other reactant(s) is used up. When 9.0 moles Na₂S and 8.0 moles CuSO₄ react, it appears that CuSO₄ is the limiting reagent. You can tell because it results in the production of less product.
You can determine the mass of CuS by multiplying the moles by the molar mass. It is important to arrange the ratio in a way that allows for the cancellation of units.
Molar Mass (CuS): 95.62 g/mol
8.0 moles CuS 95.62 g
------------------------- x ----------------------- = 765.0 grams CuS
1 mole
The scale used to measure the basicity of a substance is called the pH Scale. A base which when measured on a pH scale obtains a value greater than 7 but less than or equal to 10 is weak base and from 10-14 is strong base
<h3>Meaning of Base and basicity</h3>
A base is any substance that has the ability to accept hydrogen ion in water and also netralize an acid when mixed together.
Basicity is an attribute associated with the pH scale measurement of values above 7 to 14.
Basicity increases on the scale from 7 to 14. On the pH scale 7 is neutral. So the higher we go the more basic a solution becomes until it gets to its highest point which is 14.
In conclusion, The scale used to measure the basicity of a substance is called the pH Scale. A base which when measured on a pH scale obtains a value greater than 7 but less than or equal to 10 is weak base and from 10-14 is strong base
Learn more about basicity : brainly.com/question/172153
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