Wilkey3sicBatti Wilkey3sicBatti

02-06-2016
Chemistry

contestada

What volume measured in stp will 3.75 grams of helium gas occupy?

Respuesta :

Willchemistry Willchemistry

02-06-2016

Molar mass helium gas :

He = 4.0 g/mol

number of moles: 3.75 / 4.0 => 0.9375 moles

1 mole ------ 22.4 ( at STP)
0.9375 ------ ?

volume = 0.9375 x 22.4 / 1

Volume = 21 / 1

Volume = 21 L

hope this helps!

Answer Link

Otras preguntas

can someone please help

Which statement best represents an economic weakness of the national government under the Articles of Confederation?

hey can you please help me posted picture of question

Experiment 1: A student tested to see if sunflower growth was affected by the hardness of the soil. She used control and experimental groups. She repeated her e

Kelly was building a bed for her dollhouse. She used her bed, which is 4 feet × 6 feet, as a guide. She scaled down the dimensions of her bed by a factor 1 over

Use the parabola tool then choose the vertex followed by one point on the parabola.

how often do our tissues regenerate

In an Economic Theory of democracy 1957, Anthony Downs describes _______voting as a puzzle because voting is not in one's self interest and in fact is irrationa

If mailing controlled substances via the USPS,the authorized sender must _________________. Not Label the outside wrapper with name and quantity of drug within

Please help, I need a 100