Precipitate Reaction View Items

200.0 ml of 0.780 M solution of calcium nitrate was mixed with 200.0 ml of 0.780 M sodium phosphate to produce calcium phosphate and sodium nitrate.

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.

How can a mixture of salt water be separated into salt and water

6) (a) calculate the absorbance of the solution if its concentration is 0.0278 m and its molar extinction coefficient is 35.9 l/(mol cm). the depth of the cell is 5 mm. (b) what is the %t? (7) calculate the absorbance of the solution if the transmitted light intensity is 70% of the initial light beam intensity