please help with 6

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

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