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

what would be classified as amorphous

What is the molecular formula of a compound given the molar mass of the compound is 62.18 g/mol and the empirical formula is c2h7?

what is the lcm of 15 25 9 8.

We used a formal method of study to figure out which kind of grocery bag had the least effect on the environment. What is the student describing? A: Making rand

What happens if standard deviation is greater than mean?

The Greek term “peripeteia” refers to the __________.recognitionscene of sufferingexpositionreversal of situation

How many atoms of cobalt are in one formula of cobalt(lll) oxide?

A student writes the equation for a line that has a slope of -6 and passes through the point (2, –8). y -(-8) = -6(x - 2) y -(-8) = -6x + 12 y -(-8) + 8 = -6x

How did the practice of using enslaved workers support the southern economy?

How would you write 2501/2 as an improper fraction? PLEASE HELP