AlvinoG693229 AlvinoG693229

28-10-2022
Chemistry

contestada

A volume of 56.0 mL of He at STP. a. Contains how many molecules?

Respuesta :

SummitR205082 SummitR205082

28-10-2022

0.0025 molecules or 2.5*10^-3 molecules

At STP one mole of gas is equal to 22.4L, so how many moles would 56.0 mL have?

1 mole = 22.4L

x moles = 0.056 L

x = 0.0025 moles.

Answer Link

Otras preguntas

T varies with the cube of w. When w is 3, T is 1/9.Find the value of w when T is 1/243.I don't understand any Variations!

A student investigated how the pressure in a diving pool varied with depth. He filled a balloon with helium and tied it to the end of a long pole. Then he subm

which of the following is the the correct factorization of this trinomial. -3x^2-10x-8 a) (-3x+4)(x-2) b) -(x+4)(x-3) c)-(3x+4)(x+2) d) -3(x+4)(x+2)

what are valency and radicals

A student investigated how the pressure in a diving pool varied with depth. He filled a balloon with helium and tied it to the end of a long pole. Then he subm

Assume that the sales of a computer retail store are approximated by a linear function. Sales were $990,000 in 1983 and $2,830,000 in 1988. Let x=0 represent 19

An athlete with a high count of red blood cells will perform well in tests of physical endurance because (a) waste products will be removed from the body easily

Classify the following words into formal and informal english. 1.Commerce 2.What's up 3.May be 4.Thanks 5.Patrons 6.Banquet 7.Grant 8.Do you fancy 9.Engage 10.S

An athlete with a high count of red blood cells will perform well in tests of physical endurance because (a) waste products will be removed from the body easily

removing the dimensional prefix and express in scientific notation ( include unit)7.4nm6.78 x 10^8 MHz5.36 x 10^6 kV1500mACalculate the following numbers into s