subject
Chemistry, 09.06.2021 14:00 texassaint797

A student weighed 100g of salt hydrate (salt. x H2O). When heated 30.6g of water was evaporated. (The molar mass of the anhydrous salt is 245g/mol and the molar mass of water 18g/mol). How many moles of water are evaporated?
Calculate the moles of anhydrous salt.
What is the ratio (x) of moles of water to the moles of the anhydrous?
What is the formula of the salt?

ansver
Answers: 3

Another question on Chemistry

question
Chemistry, 23.06.2019 07:30
Assume that 13.5 g solid aluminum (al) react with hcl to produce solid aluminum chloride (alcl3) salt and gaseous hydrogen (h2) at standard temperature and pressure.
Answers: 1
question
Chemistry, 23.06.2019 08:50
Why are enzymes important to cells? they bring about chemical reactions. they provide structural support. they form the two layers of membranes. they store large quantities of energy.
Answers: 2
question
Chemistry, 23.06.2019 09:30
Which of the following is not a characteristic of a hydrogen bond? 1. it is responsible for the unusual physical properties of water. 2. it is weaker than a covalent bond. 3. it is stronger than other dipole-dipole interactions. 4. it can occur when hydrogen is covalently bound to very electronegative elements liks f, cl, br and i.
Answers: 1
question
Chemistry, 23.06.2019 13:30
Where are electrons with the lowest energy found? in the nucleus farthest from the nucleus outside the atom closest to the nucleus
Answers: 1
You know the right answer?
A student weighed 100g of salt hydrate (salt. x H2O). When heated 30.6g of water was evaporated. (Th...
Questions
question
Mathematics, 30.11.2020 21:20
question
Mathematics, 30.11.2020 21:20
Questions on the website: 13722360