musaamisi8 musaamisi8

04-02-2020
Chemistry

contestada

What is the number of moles in 4.00 g of magnesium oxide,MgO?

Respuesta :

ednorobello92 ednorobello92

04-02-2020

Answer: 0.1 mole MgO

Explanation: 1 mole of MgO is equal to its molar mass.

4.00 MgO x 1 mole MgO/ 40g MgO

= 0.1 mole MgO

Answer Link

bacchusella04 bacchusella04

04-02-2020

moles= mass/rfm
MgO 16+24=40
4/40
moles= 0.1

Answer Link

Otras preguntas

The half life of protactinium 234 in its ground state is 6.69 h. What fraction of a given amount remains after 26.76 h

Evaluate 32 divided by 0

There are 6 milligrams of a radioactive substance in a lab in month 1. Each month, half of the radioactive substance loses its radioactivity. Which graph matche

at what point do 3x-2=26 and 5x=7y+58 intersect?

If a coin is thrown with a starting velocity of 0 m/s down a dry well and hits bottom in 1.2 s, what's the depth of the well?

—¿Con qué _____ los frijoles? —Con arroz. se sirven se hierve hierven se sirve

9:6 in simplest from

A flag post cast a shadow that is 50 feet long at the same time a women cast standing nearby who is five feet six inches tall (5,5 ft) cast a shadow that is

7. Why is the Mayflower Compact an important document in American history?_________________________________________________ ____________________________________

how to differentiate?