Answer the two questions for 15pts

For 1: 6.68 g of nitrogen dioxide will contain number of molecules

For 2: The given amount of nitrogen dioxide molecules has a mass of 41.31 g.

Explanation:

According to the mole concept:

1 mole of a compound contains number of molecules

The number of moles is defined as the ratio of the mass of a substance to its molar mass. The equation used is:

......(1)

We are given:

Mass of nitrogen dioxide = 6.68 g

Molar mass of nitrogen dioxide = 46 g/mol

Putting values in equation 1, we get:

Using above concept:

If 1 mole of a compound contains number of molecules

So, 0.145 moles of nitrogen dioxide will contain = number of molecules

Hence, 6.68 g of nitrogen dioxide will contain number of molecules

We are given:

Molecules of nitrogen dioxide = molecules

Using the above concept:

If number of molecules are present in 1 mole of a compound

So, number of molecules will be present in = moles of nitrogen dioxide

We know, molar mass of nitrogen dioxide = 46 g/mol

Using equation 1:

Hence, the given amount of nitrogen dioxide molecules has a mass of 41.31 g.

i don,t know so just answer mine

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.