Plz help me with chem?

Posted on 2015-11-14 06:29:00 in Chemistry by ANOLD

1. if 3.61 g of cuno3 is dissolved in water to make 0.380 M solution, what is the volume of solution?

2. a solution conatins .725 g of ca +2 in enough water to make a 1930 ml soultion. what is the concentration in milliequivalents per liter(mE/L)?

zn(s)+2hcl(aq) ------- zncl2(aq)+h2(g)

3. how many milliliters of 6.50 M hcl (aq) are required to react with 8.85 g of zn(s)?

bao2+h2so4--------baso4+h2o2

4. how many milliliters of 4.75 M h2so4 are required to react completly with 74.1 g of bao2?

pb(cio3)2+2nal-------pbi2+2nacio3

5. what mass of presipitate will form if 1.50 l of concentrated pb(cio3)2 is mixed with 0.450 L of .260 M nal?

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