Lexilu121475 Lexilu121475

08-06-2017
Chemistry

contestada

How many atoms are in 2.5 moles of beryllium atoms?

Respuesta :

dec77cat dec77cat

08-06-2017

n(Be)=2.5 mol
Nₐ=6.022*10²³ mol⁻¹

N=n(Be)*Nₐ

N=2.5 mol * 6.022*10²³ mol⁻¹ = 1.5055*10²⁴ atoms

Answer Link

Otras preguntas

Why is a low pressure area, like the one in the map, created along a cold front? A) The cold air drops the temperature, creating a low pressure area. B) The

tell us three things you are going to do today using “voy a + infinitive verb”

suppose f(x)=x^2. what is the graph of g(x)=1/3 f(x)

Which of the following describes the Treaty of Ghent?1. It was signed after the decisive Battle of New Orleans.2. It ended all Native Anerican hostilities in Am

When an amendment is ratified by three-fourths of Congress or by three-fourths of state legislatures, it becomes part of the federal Constitution, and all state

find the slope of the line containing the points (3,-2) and (-4,0)

What is the average rate of change of the function f(x)=20(1/4)^x from x = 1 to x = 2? Enter your answer, as a decimal, in the box. Do not round your answer.

When graphed, the circle with equation x2 + y2 - 10x + 16 = 0 will lie ENTIRELY in Quadrants A) I and II. B) I and IV. C) III and II. D) III and IV.

A box has dimensions of 20 inches long, 1.9 feet wide, and 8 inches high. What is the volume of the box? The formula for the volume is V = l · w · h. 304 in^3

How many electrons are in a neutral atom of lithium