( Highlight Rotate Markup our calculations Table P5-2. Molar Masses for Various

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( Highlight Rotate Markup our calculations Table P5-2. Molar Masses for Various Compounds Compound Ca(NOs)h Co(NOs)2 Cu(NO)2 K CO KNO Molar Mass 164.09 g/mol 182.94 g/mol 187.56 g/mol 138.20 g/mol 101.10 g/mol Compound CaCO CoCO Cu2(OH)2CO H20 Co2 Molar Mass 100.09 g/mol 118.94 g/mol 221.12 g/mol 18.01 g/mol 44.01 g/mol Overall, the pigment preparation procedure must be sufficiently detailed so that someone with basic lab skills can successfully perform the preparation. A procedure in outline form is quite acceptable. Proposed Paint Formulations - Study Design Part 2 in this part of the proposal, you are to state the different paint formulations you intend to prepare and how you will prepare them. First of all, you need to be clear what property or properties are being studied, because the a the properties you are planning to investigate. Remember your objective is to find trends from which predictions can be made. To do this, vour proposed studies should manipulate only ONE variable at mount and type of vehicle, solvent and additives directly follows from

Explanation / Answer

The reaction is Co(NO3)2+ K2CO3------>COCO3(pigment)+ 2KNO3

1 mole of K2CO3 gives 1 mole of COCO3.

moles of COCO3= mass/molar mass =3/118.94= 0.025

moles of K2CO3 required =0.025

volume of K2CO3= moles/Molarity = 0.025/1=0.025L

1000ml= 1L

0.025L= 0.025*1000ml =25 ml

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