neher2128 neher2128

04-04-2016
Chemistry

contestada

What is the mass of 2.90 ×1022 molecules of NaOH (Molar mass = 40.0 g/mol)?

Respuesta :

Willchemistry Willchemistry

04-04-2016

40.0 g ( 1 mole ) --------------- 6.02x10²³ molecules
? ? --------------------------- 2.90x10²² molecules

mass = 2.90x10²² * 40.0 / 6.02x10²³

mass = 1.16x10²⁴ / 6.02x10²³

mass = 1.9269 g

hope this helps!

Answer Link

Otras preguntas

Leon stared at the new moccasins that Teofilo had made for the ceremonial dances in the summer. They were nearly hidden by the red blanket. It was getting colde

Plz help me T.TWhich factor plays the largest role in limiting the way the Supreme Court uses the power of judicial review? A) Judiciary bills passed by Congres

A red die and a blue die are thrown. What is the probability that the numbers on the two dice are different?.

if Dakota earned 7.50 in interest in Account A and $20.00 in interest in Account B after 15 months If the simple interest rate is 3% for Account A and 4% % f

what poetic device is Those Windermere peaks look like a perfect place to cry

what is she having for lunch

fgfcggvgvgvvhggggggggggggggggggggggggggggggggggggctf

whats the slope between (-2, -19) and (-12, 11)

Here's the photo, sorry i didn't add it before.

Which best represents the slope of the line below? A) -2 B) -1/2 C) 1/3 D) 3