https://bblearn tri c du webapps/assessment take aundysp?course assessment id- 3

Question

https://bblearn tri c du webapps/assessment take aundysp?course assessment id- 369509, 1&course d. 6992 n-espace G Google Question Completion Status: How many atoms of carbon are in 1 mole of carbon? T TT Arial - 3 (12pt) Path: p Words:0 QUESTION 8 Which weighs more: 5 moles of sodium nitrate or 4 moles of carbon dioxide? Please show me what 5 moles of sodium nitrate and 4 moles of carbon dioxide weigh to prove how you came to your conclusion. For the toolbar, press ALT+F10(PQ or ALT+FN+F10 (Mac). TT!Arial --3(12pn . T. :-·-·' Click Save and Submit to save and submyt. Click Save All Answeers to save all answers

Explanation / Answer

Q7. In one mole of carbon there are 6.022 x 1023 atoms of carbon.

For any species, there are 6.022 x 1023 atoms in one mole of that species. This number is constant and known as Avagadro's number.

Q8. Molar mass of chemical species is defined as the mass of one mole of that species.

Molar mass of sodium nitrate is 85.0 grams. This means one mole of sodium nitrate has weight of 85.0 grams. Therefore 5 moles of sodium nitrate will weigh 5 x 85.0 grams or 425 grams.

Molar mass of carbon dioxide is 44.0 grams. This means one mole of carbon dioxide has weight of 44.0 grams. Therefore 4 moles of carbon dioxide will weigh 4 x 44.0 grams or 176 grams.

Hence 5 moles of sodium nitrate are heavier.

Related Questions

Navigate

• Browse (All)
• Browse H
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.