daily quiz iii
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Daily Quiz III. A sample of sodium sulfite (Na 2 SO 3 ) has a mass of 2.25 g. How many Na + ions are there? A. 1.08 x 10 22 ions B. 2.16 x 10 22 ions C. 1.17 x 10 20 ions D. 2.97 x 10 -20 ions E. none of the above. - PowerPoint PPT PresentationTRANSCRIPT
Daily Quiz III
1. A sample of sodium sulfite (Na2SO3) has a mass of 2.25 g.How many Na+ ions are there?
A. 1.08 x 1022 ionsB. 2.16 x 1022 ionsC. 1.17 x 1020 ionsD. 2.97 x 10-20 ionsE. none of the above
2. A sample of sodium sulfite (Na2SO3) has a mass of 2.25 g.How many SO3
- ions?
A. 1.17 x 1020 ionsB. 1.08 x 1022 ionsC. 2.97 x 10-20 ionsD. 2.16 x 1022 ionsE. none of the above
3. What is the mass in grams of one formula unit of Na2SO3?
A. 7.59 x 1020 gramsB. 2.09 x 10-24 gramsC. 4.78 x 1021 gramsD. 126 gramsE. none of the above
4. Are we having fun yet?
A. yesB. no
1. A sample of sodium sulfite (Na2SO3) has a mass of 2.25 g.How many Na+ ions are there?
A. 1.08 x 1022 ionsB. 2.16 x 1022 ionsC. 1.17 x 1020 ionsD. 2.97 x 10-20 ionsE. none of the above
1. A sample of sodium sulfite (Na2SO3) has a mass of 2.25 g.How many Na+ ions are there?
A. 1.08 x 1022 ionsB. 2.16 x 1022 ionsC. 1.17 x 1020 ionsD. 2.97 x 10-20 ionsE. none of the above
2. A sample of sodium sulfite (Na2SO3) has a mass of 2.25 g.How many SO3
- ions?
A. 1.17 x 1020 ionsB. 1.08 x 1022 ionsC. 2.97 x 10-20 ionsD. 2.16 x 1022 ionsE. none of the above
2. A sample of sodium sulfite (Na2SO3) has a mass of 2.25 g.How many SO3
- ions?
A. 1.17 x 1020 ionsB. 1.08 x 1022 ionsC. 2.97 x 10-20 ionsD. 2.16 x 1022 ionsE. none of the above
3. What is the mass in grams of one formula unit of Na2SO3?
A. 7.59 x 1020 gramsB. 2.09 x 10-24 gramsC. 4.78 x 1021 gramsD. 126 gramsE. none of the above
3. What is the mass in grams of one formula unit of Na2SO3?
A. 7.59 x 1020 gramsB. 2.09 x 10-24 gramsC. 4.78 x 1021 gramsD. 126 gramsE. none of the above
4. Are we having fun yet?
A. yesB. no
4. Are we having fun yet?
A. yesB. no