2 H C l ( a q ) + N a 2 C O 3 ( a q ) ? 2 N a C l ( a q ) + H 2 O ( l ) + C O 2

Question

2HCl(aq)+Na2CO3(aq)?2NaCl(aq)+H2O(l)+CO2(g)
1.What volume of 1.50M HCl in liters is needed to react completely (with nothing left over) with 0.750L  of 0.400M Na2CO3?
2. A 663-mL sample of unknown HCl solution reacts completely with Na2CO3 to form 19.1g CO2. What was the concentration of the HCl solution? 2HCl(aq)+Na2CO3(aq)?2NaCl(aq)+H2O(l)+CO2(g)
1.What volume of 1.50M HCl in liters is needed to react completely (with nothing left over) with 0.750L  of 0.400M Na2CO3?
2. A 663-mL sample of unknown HCl solution reacts completely with Na2CO3 to form 19.1g CO2. What was the concentration of the HCl solution?

Explanation / Answer

2HCl(aq)+Na2CO3(aq)?2NaCl(aq)+H2O(l)+CO2(g)

so for every moles of Na2CO3, 2 moles of HCl is required.so, equating the number of moles,

2*0.75*0.4=1.5*v

or v=0.4 Litre

2)moles of CO2=0.5*moles of HCl.

so equating the number of moles,

0.663*m=2*19.1/44

or m=1.31 M

Related Questions

Navigate

• Browse (All)
• Browse 2
• Subjects

---

---

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