mynamecamranh mynamecamranh

03-04-2018
Chemistry

contestada

Two moles of an unknown substance were shown to have a mass of 240g. What molecular mass does the substance have?

Respuesta :

kenmyna kenmyna

12-04-2018

The molecular mass of the unknown substance is calculated as follows

mass of unknown substance / moles of unknown substance

that is 240g /2 mol = 120 g/mol

Answer Link

Otras preguntas

How many protons are there in a molecule of adrenaline (c9h13no3), a neurotransmitter and hormone?

You might recognise this guy as the chap who comes to collect the dead. He literally can’t get enough of it. He’s referred to as ‘The ____ Reaper’.A) GrizzlyB)

Which sentence contains an incorrectly punctuated appositive or appositive phrase? A. Cindy Sherman, a popular photographer, just had a show at this galler

Whereas ________ specify how all group members should behave, ________ specify how individuals in particular positions should behave?

56/x^2-2x-15 - 6/x+3 = 7/x-5

Can someone help me solve X please?

The three layers of specialized membranes surrounding the brain and spinal cord are the:

find volume of a cube given he side length 9ft

Harriet counts 15 big boxes and 12 small boxes of notebooks. Each large box contains 189 notebooks, and each small box contains 79 notebooks. Estimate the total

Which of the following sentences is written in the active voice? Michaela’s toe was broken by her brother’s toy train left on the floor. Michaela’s broken toe