An architect designs a room that has interior measurements of 50.0feet by 30.0 feet by 10.0 feet. what is the value of the room in cubic feet?

The value of room is 15000 cubic feet

Solution:

Given that architect designs a room that has interior measurements of 50.0 feet by 30.0 feet by 10.0 feet

Therefore,

Length = 50 feet

Width = 30 feet

Height = 10 feet

To find: value of room in cubic feet

So we have to find the volume of room

The volume of room is given as:

Substituting the given values,

Thus the value of room is 15000 cubic feet

electron microscopy and scanning tunneling microscopes gives us a greater understanding of atoms by being able to see the atom itself, and lets us see some atomic reactions.

explanation:

given:

mass of na = 115 g

excess cl2

to determine:

mass of nacl produced

explanation:

given reaction is-

2na(s) + cl2(g) → 2nacl(s)

since cl2 is in excess, na will be the limiting reagent

as per the reaction stoichiometry na: nacl = 1: 1

i.e. moles of na reacted = moles of nacl formed

now, # moles of na = mass of na/atomic mass

                                  = 115 g/23 g.mol-1 = 5 moles

therefore, moles of nacl = 5

molar mass of nacl = 58 g/mol

mass of nacl = 5 moles * 58 g.mol-1 = 290 g

ans: amount of nacl produced = 290 g