Hydrogen peroxide, H2O2, is a disinfectant commonly used to treat small wounds. A sample of hydrogen peroxide has a mass of 0.820 g. Determine the number of moles of hydrogen peroxide in the sample - Show all your work using appropriate conversion factor method and make sure to round your answer to the correct number of significant figures

What is the percentage of hydrogen in nitrogen trihydride

When 13.3 g koh is dissolved in 102.7 g of water in a coffee-cup calorimeter, the temperature rises from 21.4 °c to 31.53 °c. what is the enthalpy change per gram of koh (j/g) dissolved in the water? * take the density of water as 1.00 g/ml. * assume that the solution has a specific heat capacity of 4.18 j/g*k. enter to 1 decimal place. do not forget the appropriate sign /(+). canvas may auto-delete the (+) sign

Suppose that some of the compound spilled out of the crucible after it was heated. would that cause the percent by mass of water in the compound determined by the experiment to be too low, too high, or unchanged? briefly explain your answer.