*

3.91 3.505.50 mmol/L 0.99 0.561.65 mmol/L 2.96 1.454.00 mmol/L 1.9 06.0 mol/L 5.34 2.007.14 mmol/L 361 140446 mol/L 5.00 3.906.40 mmol/L 2.49 1.402.95 mmol/L 4.93 3.106.00 mmol/L 1.52 1.003.00 mmol/L:2008-08-24 10:05

molL-1 molm-3 mmolL-1 BBCVn

158.5g NaCl1L,1molL-1.21L 1 molL-1 NaCl 100mL,1molL-1.31molL-1 NaCl1molNaCl.

100mL2mol/LNaOH18NaOH100mL28NaOH100mL38NaOH100mL

100 mL0.100molL-1Na2CO3, ? (Na2CO3106)100 mL0.100molL-1n(Na2CO3) 1. 2...V(Na2CO3)c(Na2CO3)

0.001g /

(:50/100/250/500mL)2.:

50ml. 100ml. 250ml. 500ml. 1000ml

1.2.3.,.180o

100mL 0.10molL-1 Na2CO3

m(Na2CO3)=n(Na2CO3)M(Na2CO3) =c(Na2CO3)V[Na2CO3(aq)] M(Na2CO3) =0.10mol/L0.1L106g/mol =1.06g _____ g1.1

?1. 2. 3. 5. 4.

,,.00mL?

2-3

12cm

()

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