The cost of table salt(NaCl) and sugar `(C_(12)H_(22)O_(11))` are Rs 2 per kg and Rs 6 per kg respectively. Calculate their cost per mole.

The cost of table salt (NaCl) is Rs 2 per Kg. Calculate the cost per mole.

Calculate mass of 2.7moles of C_(12)H_(22)O_(11) (molar mass = 342 g/ mol)

The order of reaction is C_12H_22O_11+H_2O rarr C_6H_12O_6+ C_6H_12O_6

Calculate the molecular mass of C12H22O11

A sugar syrup of weight 214.2g contains 34.2g of sugar (C_(12)H_(22)O_(11)) . Calculate (i) Molality and (ii) Mole fraction of sugar in syrup.

Find the cost of fencing a square park of side 250 m at the rate of Rs.20 per metre.

Length of a room is 1 1/3 times its breadth and its height is 1/2 times its length. The cost of white washing the walls at the rate of Rs 2.60per m^2 is Rs 291.20. find the cost of tiling the floor at the rate of Rs 8 per m^2 .

A container opened from the top and made up of a metal sheet, is in the form of a frustum of a cone of height 16 cm with radii of its lower and upper end as 8 cm and 20 cm, respectively. Find the cost of made which can completely fill the container, at the rate of Rs 20 per litre. Also find the cost of metal shape used to make the container, if it costs Rs 8 per 16cm^(2) . (Take pi=3.14 )

The cost of preparing the walls of a room 12 m long at the rate of Rs 1.35 per square metre is Rs 340.20 and the cost of matting the floor at 85 paise per square metre is Rs 91.80 find the height of the room.