Answer:
=> 0.12428 M
Explanation:
To begin, write down a balanced equation;
Ca(HCO3)2 + 2HNO3 => Ca(NO3)2 + 2H2O + 2CO2
Then calculate the number of moles contained in 9.56 mL of 1.30M HNO3
We know that molarity is contained in 1000mL
1000 mL = 1.30 moles
9.56 mL = ?
= (9.56 × 1.30)/1000
= 0.012428 moles
Mole ratio
Ca(HCO3)2 : HNO3
1 : 2
But, xmoles : 0.012428 moles
x = 1/2 × 0.012428
= 0.006214 moles
This moles is contained in 50 mL solution.
50 mL = 0.006214 moles
1000 mL = ?
= (1000 × 0.006214)/50
= 0.12428M
