Common name of `Na_2` ` CO_3`. 10H_2O

Fill in the blanks: The common name of Na_2CO_3.10H_2O is_____

Calculate the formula mass of: Na_2 CO_3 * 10H_2O

Calculate the number of oxygen atoms in 0.10 mole of Na_2CO_3* 10H_2O .

True/false Washing soda is Na_2SO_4. 10H_2O

Write the IUPAC name of : [Co (NO_2)_2 (NH_3)_2 (H_2O)_2 ]NO_3

6.2g of a sample containing Na_2CO_3, NaHCO_3 and non-volatile inert impurity on gentle heating loses 5% of its mass due to reaction 2NaHCO_3 rarr Na_2 CO_3 + H_2 O + CO_2 . Residue is dissolved in water and formed 100mL solution and its 10mL portion requires 7.5 mL of 0.2M aqueous solution of BaCI_2 for complete precipitation of carbonates. Determine mass (in gram) of Na_2 CO_3 in the original sample.

The oxidation numbers of oxygen in KO_3, Na_2 O_2 respectively are :

Write the IUPAC name of : [Co (CN ) (en)_2 (H_2O) ]^(+2)

Write the IUPAC name of : Na[Fe (CO)_4 ]