Whatever4714 Whatever4714

10-02-2018
Chemistry

contestada

What is the mass in milligrams of 4.30 moles of sodium? use significant figures?

Respuesta :

Dejanras Dejanras

19-02-2018

Answer is: mass of 4,30 moles of sodium is 98800 mg.
n(Na) = 4,30 mol.
m(Na) = ?
m(Na) = n(Na) · M(Na).
m(Na) = 4,30 mol · 23 g/mol.
m(Na) = 98,90 g.
m(Na) = 98,90 g · 1000 mg/1g.
m(Na) = 98900 mg.
n - amount of substance.
m - mass of substance.
M - molar mass of substance.

Answer Link

Otras preguntas

1. How did King Alfred help build the national identity of England? He conquered many regions in France. O He drove the Danes out of England. He granted more ri

Ank estimated that he drove about 450 miles in a week. He actually drove 485 miles. Find the percent error in Hank's estimate. Round to the nearest whole percen

Please help :) ill give brainliest. fannnkkksss

Individual cells do not need to maintain homeostasis. True False

Sara kept track of the number of hours that she spent practicing piano each week for several weeks. She spent 4, 6,7,5, and 8 hours, What is the mean number of

In active transport, what do molecules do

1. How are you involved in the game of economics?

True Or False An apple, potato, and onion all taste the same if you eat them with your nose plugged

please help me with my science hw, please

Heng tried to define a reflection across line r. Any point M not on the line of reflection maps to a point M' such that the midpoint L of M→M' is on line r. Wh