Lets assume the liquid in problem 1 above is H2O2 (hydrogen peroxide).  Below is the data table of the three mass measurements: A, B, and C. Determine the mass of H2O2 using the data from measurement C. 1 point60. g60 g146 g206 g25.64 g102 g102.00 gClear selection

Determine the mass (in g) of nitric acid (HNO3) in 60.00 cm3 of a 3.00 mol dm–3 solution. Answer: Mass of HNO3 = g (to three significant figures).

Given the balanced chemical equation:    2 H2 + O2 --> 2 H2OWhat mass (in grams) of water would be produced from 3.00 mol of H2?You will need to calculate molar mass of water yourself.Group of answer choices54.1 g3.00 g18.02 g36.04 g

Describe a method to determine the mass of dissolved solids ina 100 cm 3 sample of river water.

The mass (g) of a single H2 molecule (use 1H) is closest to:(Use the isotopic mass of 1H = 1.008 amu)Group of answer choices7.3 x 10-15 g3.3 x 10-24 g2.0 gnone of the above5.2 x 10-23 g

In order to complete the lab, a 500 mL solution of 0.25 M potassium oxide was required. What mass of potassium oxide was used? Question 2 options: 6.89 g 25.2 g 0.125 g 47.1 g 11.8 g