Didiquake Didiquake

01-07-2017
Chemistry

contestada

What is the mass, in grams, of a sample of 1.72 × 1023 atoms of potassium (K)?

Respuesta :

LeChatNoir LeChatNoir

01-07-2017

6,02×10²³ ------ 39g
1,72×10²³ ------- X
X = (39×1,72×10²³)/6,02×10²³
X = 11,143g K

Answer Link

Otras preguntas

No es consecuencia de la lluvia ácida: a. Acidificación del suelo b. Acidificación de ríos y mares c. Calentamiento global d. Precipitación de lluvia ácida.

Does anyone know how to do this? It's for photography <3 Practice taking self-portraits using the information in the module. Get creative and think about how

what are amino acids used to build EDG2021

You are taking a survey on the heights of all your classmates. This is an example of categorical data. True or false?

Leçon 3 > Exprimer la régularité et la fréquence 12. Complétez les expressions indiquant la fréquence ou la régularité dans la lettre de Lucas, pensionnaire

The radius of a circle is 5 cm. Find its area to the nearest tenth.

PLEASE Help! I need this by tomorrow!

HELP 1. Yo ___ la guitarra el mes pasado. (tocar, preterite) 2 Mis hermanos pequeños ___ muy tarde. (dormirse, preterite) 3. La semana pasada, mis amigos y yo _

The conversion of CICH=CHCI to CI2C=CC12 can be carried out with: C12 / H20 C12 C12/ hv C12 / aq. NaOH

Chinstrap and Gentoo penguins are two species of penguins that feed on krill in the Antarctic Ocean. a. True b. False