rebekah1234567890 rebekah1234567890

20-09-2016
Chemistry

contestada

How many atoms are in a sample of 175 grams of sodium (Na)? The answer needs to be
a x 10^b

Respuesta :

Willchemistry Willchemistry

27-09-2016

Atomic mass Sodium ( Na ) = 22.98 u.m.a

22.98 g ----------------- 6.02x10²³ atoms
175 g ------------------- ?? atoms

175 x ( 6.02x10²³) / 22.98 =

4.58x10²⁴ atoms of Na

hope this helps!

Answer Link

Otras preguntas

Please help!! I need the answer really quick!! [35 points!] • Define and describe in detail (and in your own words) ultrasound and infrasound • Describe how ult

What civil rights measure was passed by Congress shortly after King’s assassination?

Two states are in constant conflict with one another. Which type of boundaries are these states MOST likely to have? (1 point) I. Geometric boundaries II. Reli

While you are driving in the lane next to the curb on a multilane road, the car on your left suddenly moves toward you lane. They are about to crash into your f

A water reservoir is in the form of a right circular cone. The cone is 21 ft deep and has a radius of 7ft. Water has collected in the cone to a depth of x ft, a

In the poem, which word in stanza 5 provides a hint to the meaning of the word gloating?

Please help right away

Which congruence postulate is stated below If speak two angles and a non included side of one triangle are congruent to the corresponding two angles and side of

Answer the question in the picture.

are you 100% sure that sacco and venzetti were innocent?why/why not