Question

4. How many GRa are there in 9.3 Ci? Table 5. SI prefixes Factor Name Symbol Factor Name Symbol 1024 yotta Y 102 zetta Z 1018 exa E 1015 peta P 1012 tera T 109 giga G 106 mega M 103 kilo k 102 becte, h 101 deka da 10-1 deci d 10-2 centi c 10-3 milli m 10-6 micro u 10-9 vana n 10-12 pica p 10-15 femta f 10-18 atto a 10-21 zepte z 10-24 yacte y 1Ci- 3.70371010 dps Giga 109

Please show all work. I do not understand this question.

Answer 1

This question is very simple, you just need to change one unit of radioactivity (Ci) into another unit (GBq).

because you have said you don't understand the question I can give an example first.

1 kilometer = 1000 meter (in this we have covered 1 km to m )

given : 1 Ci =3.7037 * 10¹⁰ dps

and 1 Bq= 1 dbs

so 1 Ci =3.7037 * 10¹⁰ Bq

so 9.3 Ci = 9.3 8* 3.7037 * 10¹⁰ Bq = 34.44441* 10¹⁰ Bq

We have 9.3 Ci into Bq i.e.Bq = 34.44441* 10¹⁰ Bq

Now We have to convert Bq to GBq

given 1 Giga or 1G = 10⁹

1GBq = 10⁹ Bq

So 1Bq =1/10⁹ GBq

34.44441* 10¹⁰ Bq = 34.44441* 10¹⁰ *(1/10⁹ ) GBq

34.44441* 10¹⁰ Bq=34.44441* 10¹⁰ *10^-9  GBq

34.44441* 10¹⁰ Bq=34.44441* 10¹ GBq

34.44441* 10¹⁰ Bq=344.4441 GBq

So 9.3 Ci = 9.3 8* 3.7037 * 10¹⁰ Bq = 34.44441* 10¹⁰ Bq = 344.4441 GBq