please help with 6 4)
7)
8)
9)
What is the normality of 0.2 M VI?SOO solution?
(e 0.6
.(b) 0.4
is the mass of onc carbon atom?
(b 10
1/12
Which of the t-ollowing contain least molec tiles?
(a) 0.1 mol C02 (b) 22 g C02
(n SI system, which prefix is used for 106?
(a) micro
(b) tera
(c) mega
(d) 0.2
(d) 1.99 x 1023
(d) 22.4 liter C02
(d) femto
lhe empirical formula of one unknown substance C 142. If molecular mass of one
mole of substance is 42 then what is the molecular tlormula of the substance?
(a) CH2
(d) C3Hs
If 20 g substance is dissolved in 200 g water, then What is the % WAV of
soluzion?
(a) 10