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Hey, I interpret your question as if you ask about GRAMS (or kilograms) of rice.
Otherwise, for what reason do you mention about the mass of one grain ?
Are you sure that you know what you want to ask for ?
g-r-a-i-n-s, or grams = 3355443 grams (rounded) = 3355.443 kilograms = 3.355 tons (metric tons). ANSWER
Solved.
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It is about Geometric progression.
On geometric progressions, see introductory lessons
- Geometric progressions
- The proofs of the formulas for geometric progressions
- Problems on geometric progressions
- Word problems on geometric progressions
in this site.
Also, you have this free of charge online textbook in ALGEBRA-II in this site
- ALGEBRA-II - YOUR ONLINE TEXTBOOK.
The referred lessons are the part of this online textbook under the topic
"Geometric progressions".
Save the link to this textbook together with its description
Free of charge online textbook in ALGEBRA-II
https://www.algebra.com/algebra/homework/complex/ALGEBRA-II-YOUR-ONLINE-TEXTBOOK.lesson
into your archive and use when it is needed.
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Look, you obtained from me not only a single solution,
but the entire online textbook to develop your skills and knowledge far ahead.
It is so great support for you under these pandemic conditions (!) (!) (!)
You should be more than happy (!)