The table below gives the cmc in H2O and 0.05M aq KCI as well as the aggregation number and Krafft point for sodium dodecyl sulphate and sodium hexadecyl sulphate. Substance 5. CMCH20 CMCO.1M NaCi NAGG KP CH:(CH2)11SO.Na CH3(CH2)15SO.Na 8.1x10 5.8x104 1.6x10 8.9x105 62 78 16°C 45°C (i) Explain the type of information provided by each of these parameters above. (ii) Account clearly for the differences in data recorded for the two surfactants.

RQ IFC CI OEt AICI 3 14

Just #2 please

Celsius to Fahrenheit is F = 9/5C + 32. Round to the nearest tenth 67 degree F is equivalent to what C?

HO CH3 100°C CH3OH H3C. CH3 H

Need help with homework

(a) (b) 3. For each image below, record the volume with the correct significant figures. a. beaker b. volumetric flask C. buret d. volumetric pipet e. graduated cylinder -50 ml ±5% (c) M (d) (e) 50 ml 50 ml 40 30 -20 No. 1000 10 24 50 mL 25 50 mL 45 40 30 25 20 mL 10

Q: (4.80 x 10^{-107}) X (5.00 x 10^{-11})= a 2.40 x 10^{-96} b 24.0 x 10^{-96} c 2.40 x 10^{-118} d 2.40 x 10^{-117}

Which sample is probably the full mixed and unseparated mixture? AB с D E 12 1 2 3 4

None