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

Please help me. I need help thank you.

HELP ASAP Use the equation to complete the table. y = 5x +8

You are seeing Mr. Ataley who is a 54-year-old man with dyspnea. After careful physical examination, you suspect cor pulmonale and pulmonary hypertension. Which

Help me now!!!! Give one explanation of what divergent boundary and give one explanation of transform boundary

what is radioactivity????

David Rodriguez is a junior at Central High School. He has set long-term career goals to become an air conditioning and refrigeration mechanic. His advisors a

help pleaseei literally dont get it

The population of a town is 18,000. It decreases at a rate of 8% per year. In about how many years will the population be fewer than 11,000? Please describe ste

Air is cooler at high altitudes than it is at low altitudes. O True O False

2. Radio stations are usually identified by their frequency. A radio station in the middle of the FM band has a frequency of 99.0 MHz. Calculate its wavelength