2.000 g TUMS tablet (CaCO3 and Binder) was analyzed in a lab. 11.42 mL of 0.871 M HCI was needed to dissolve the CaCO3 (active ingredient) of TUMS Tablet. Find the mass and % by mass of CaCO3 in TUMS Tablets. 459.00 mg O 75% O 50% 605.00 mg 30% O 25% 0 400.00 mg O 500.00 mg

If you weighed 0.9867 g of Zn pellets and prepared a standard solution in a 250.0 mL volumetric flask, What is the concentration of this solution? The molecular weight of the zinc pellets is 65.39 g/mol.     0.01509 M 0.0604 M 0.06036 M 6.04e-5 M 0.003772 M 258.1 M 6.036e-5 M

11- the molar concentration of HNO3 (63.0 g/mol) in a solution that has a specific gravity of 1.42 kg/l and is 70.5% HNO3 (w/w) ?. 0159 M 015.9 M 01.59 M 10- What is the molar concentration of K3Fe(CN)6 in a solution that contains 63.3 ppm of K3Fe(CN)6 (329.3 g/mol)? answer = 1.922x10-3 M O True False 9- the preparation of 250ml of 0.108 M BaCl2 from BaCl2. 2H2O (244.3 g/mol) ?. the weight = 6.59 g O True O False ترك السؤال ارسال الاجابة

How many mL of water should be added to 50.0 mL of a 15.0 M H2SO4 solution to give a final concentration of 0.300 M? A) 950 mL B) 1000 mL C) 2450 mL D) 2500 mL