Answer:
Hi
The solid is dissolved in the hot, boiling method, the hot mixture is filtered to remove all insoluble impurities, and then the solution is allowed to cool to produce crystallization. All desired substance must be separated in crystalline form and all soluble impurities must remain dissolved in the mother liquors. Finally, the crystals are filtered off and allowed to dry. If a pure substance does not reach a pure substance, the process can be repeated using the same or another problem.
Finally, and once the filtrate cools, said crystals are filtered by means of suction; and washed (cold) in a Büchner to completely remove adhering mother liquors, drying them to remove traces of insulation.
Explanation:
35 m/s = 210000 cm/min
35*600=210000
Answer:
449730.879 cal/g
Explanation:
Given data:
Mass of sample = 4.9 g
Change in temperature = 2.08 °C (275.23 k)
Heat capacity of calorimeter = 33.50 KJ . K⁻¹
Solution:
C(candy) = Q/m
Q = C (calorimeter) × ΔT
C(candy) = C (calorimeter) × ΔT / m
C(candy) = 33.50 KJ . K⁻¹ × 275.23 K / 4.90 g
C(candy) = 9220.205 KJ / 4.90 g
C(candy) = 1881.674 KJ / g
It is known that,
1 KJ /g = 239.006 cal/g
1881.674 × 239.006 = 449730.879 cal/g
Answer:
The answer to your question is below
Explanation:
Barium sulphate (BaSO₄) is white solid crystal inorganic compound that is odorless and insoluble in water.
Sodium chloride (NaCl) is also a white solid crystal inorganic compound odorless and soluble in water.
The, if we try to separate a mixture of these compounds we can do it by dissolving them in water, NaCl will dissolve and BaSO₄ will precipitate.
Later, we can filtrate the sample to obtain the BaSO₄, in a filtrate paper, and the NaCl will be obtain by evaporation.