dego47
Answered

Westonci.ca is your trusted source for accurate answers to all your questions. Join our community and start learning today! Find reliable answers to your questions from a wide community of knowledgeable experts on our user-friendly Q&A platform. Explore comprehensive solutions to your questions from knowledgeable professionals across various fields on our platform.

How many grams are in 1.30 x 10^24 formula units of Ca(NO3)2?
A. 151 g
B. 354 g
C. 294 g
D. 416 g

How Many Grams Are In 130 X 1024 Formula Units Of CaNO32 A 151 G B 354 G C 294 G D 416 G class=

Sagot :

arslanamir186

Answer:

354 gram

Explanation:

No of formula units = no of moles × Avogadro's number

Number of moles = no of formula units/ Avogadro's number

No of moles = 1.30×10^24/60.02×10^23

No of moles = 2.159 moles

Mo of moles = mass in gram/ molar mass

Mass in gram = no of moles× molar mass

Mass in gram =2.159×164

Mass in gram = 354.15 gram

The grams that are present in [tex]1.30 * 10^{24}[/tex] formula units of [tex]Ca(NO_3)_2[/tex] is 354 gram that can be calculated using number of moles.

(B) 354 g

One mole:

A mole is defined as [tex]6.02214076 * 10^{23}[/tex] of some chemical unit, be it atoms, molecules, ions, or others.

No. of formula units = no of moles × Avogadro's number

Number of moles = no of formula units/ Avogadro's number

No. of moles = [tex]1.30*10^{24}/6.022*10^{23}[/tex]

No. of moles = 2.159 moles

The Number of moles is defined as the given mass over molar mass.

No. of moles = Mass / Molar mass

Mass = no. of moles× molar mass

Mass =2.159×164

Mass = 354.15 gram

Thus, option B is correct.

Find more information about Moles here:

brainly.com/question/1358482

Thanks for using our service. We aim to provide the most accurate answers for all your queries. Visit us again for more insights. We hope you found what you were looking for. Feel free to revisit us for more answers and updated information. Stay curious and keep coming back to Westonci.ca for answers to all your burning questions.