Question

3-What volume (in mL) of 0.125 M AgNO3 is required to react completely with 35.31 mL of 0.225 M Na3 PO4? The balanced reaction is given below:

3 AgNO3(aq) + Nas PO4(aq) —>Ag3SO4(6)+ 3 NaNO3(aq)

4-What volume (in mL) of 0.550 M HCl is required to react completely with 4.72 g of sodium hydrogen carbonate?

NaHCO3(s)+ HCl aq) —>NaCl(aq) + CO2(g)+ H2O)

5-Determine the volume of O2 (at STP) formed when 30.0 g of KCIO3 decomposes according to the following reaction. The molar mass for KCIO3 is 122.55 g/mol.

2 KCIO3(s)—>2 KCl(s) +3 O2(g)

Answer 1

3 volume of 0.125m AgNo required, 35.31 Xo 225 x 3 me 0.125 = 190674 mL 191 mL 4.72 9 of Natco, in moles = 7.728 -0.056 185794 mol 84.007 mm=84.007 g/mol) ginol HCe 0.056 185794 mor 550 M of venres volume 0.550 M Hae required a 0-55o mol = 0.102155989 L = 102.1559892mL (12=1000) a 102 mL per 30.0g kelo, 30: in moles = 0.2447 9806 mol mores of a produced - 0.29429804/ x3 =0.367197062 mol using PV = nRT & v= nRT -0.3671920628 0.082068298 5 = 8.929392901 L S 8.99 L