Question

Jeniah was calculating the mass of her favorite rocket fuel Hydrogen peroxide (H2O2). She wants to use some of it in a devil's toothpaste explosion, but she needs to do it safely and have accurate measurements. Check her work to ensure she has proper amounts. Below is her calculation of the molar mass of hydrogen Peroxide using the periodic table: Hydrogen- 1 gram per mole x 2 atoms = 2 grams per mole Oxygen - 16 grams per mole x 1 atoms = 16 grams per mole Total = 18 grams per mole Jeniah's calculation is going to result in the reaction she is planning true or false​

Answer 1

Jeniah's calculation of the molar mass of hydrogen peroxide is correct.

Step-by-step explanation:

Here is a step-by-step explanation of how she arrived at the answer:

• Jeniah identified the atomic masses of each element in hydrogen peroxide from the periodic table.

• She then counted the number of atoms of each element in the molecule of hydrogen peroxide, which in this case is 2 hydrogen atoms and 2 oxygen atoms.

• She then multiplied the atomic mass of each element by the number of atoms in the molecule.

• Finally, she added the products of the previous step together to obtain the molar mass of hydrogen peroxide.

In this case, the molar mass of hydrogen peroxide that Jeniah calculated is 18 grams per mole, which is the correct molar mass for this compound. This means that if Jeniah uses this amount of hydrogen peroxide, she will have the correct amount of the compound needed for her experiment. However, it's important to note that in addition to knowing the amount of a substance needed for an experiment, it's also important to handle the substance safely and follow all necessary precautions to avoid accidents or harm.