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

Mike thinks of himself as a "go-getter." He gets to work early, leaves late, doesn't stop for lunch, and competes with his coworkers to get the best accounts an

A clock is constructed using a regular polygon with 60 sides. The polygon rotates every minute. How much has the polygon rotated after 7 minutes? 14 21 35

Which of the following is true of an intrinsic reward? Question 4 options: 1) It is the internal feeling of satisfaction one gets from one's job. 2) It intends

List at least three characteristics and three skills that apply to you.

Please answer this correctly

y=3x+5= what is the slope

What do chemical formulas represent

A 0.10 kg baseball travelling at 40 m s−1 hits straight back to the pitcher at 55 m s−1. The contact time is 0.01 seconds. What is

Given the cost function Upper C (x )and the revenue function Upper R (x ), find the number of units x that must be sold to break even. Upper C (x )equals14xplu

A small candle burns 1/2 inch every hour. A large candle burns 2/3 inch every hour. After how many hours will the two candles be the same height? a. 8 h b.