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What is the mass of 0.432 moles of C8H9O4? Consider one mole…

What is the mass of 0.432 moles of C8H9O4? Consider one mole and go from there.

Published October 13, 2021
Categorized as Uncategorized

What is the percentage of composition of HClO3? HINT: Consid…

What is the percentage of composition of HClO3? HINT: Consider one mole in grams.

Published October 13, 2021
Categorized as Uncategorized

Add  these measured values and give the correct sum: 3.201 +…

Add  these measured values and give the correct sum: 3.201 + 0.0325  + 10.0400 = ?

Published October 13, 2021
Categorized as Uncategorized

How many moles of solute are there in 754 mL of a 0.250 M Na…

How many moles of solute are there in 754 mL of a 0.250 M NaCl solution? Hint: Rearrange the equation for the definition of molarity. Cancel units.

Published October 13, 2021
Categorized as Uncategorized

Which of these is the sulfate ion?

Which of these is the sulfate ion?

Published October 13, 2021
Categorized as Uncategorized

What is the mass of 0.432 moles of C8H9O4? Consider one mole…

What is the mass of 0.432 moles of C8H9O4? Consider one mole and go from there.

Published October 13, 2021
Categorized as Uncategorized

How many zeroes are significant in this number?   0.08030200…

How many zeroes are significant in this number?   0.08030200 grams

Published October 13, 2021
Categorized as Uncategorized

Calculate the following result to the correct number of digi…

Calculate the following result to the correct number of digits.      (Use only digits which are significant.)       (3.69 x 10‑4)  (4.5911 x 107)       (7.311 x 10‑2)  ( 23.59 x 1017)    =     

Published October 13, 2021
Categorized as Uncategorized

How many atoms of H are there in 39.2 g of H2S?  Consider th…

How many atoms of H are there in 39.2 g of H2S?  Consider the mass of one mole. 

Published October 13, 2021
Categorized as Uncategorized

How many zeroes are significant in this number?   0.08030200…

How many zeroes are significant in this number?   0.08030200 grams

Published October 13, 2021
Categorized as Uncategorized

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