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

Is urbanization in this region linked to an overall increase, decrease, or no change in vegetation land cover?

The set of laws that limited the rights and freedoms of African Americans after the Civil War were called: * A. Civil Rights Laws B. Jim Crow Laws C. Affirmativ

What is the temperature of 0.750 mol of a gas stored in a 6,050 mL cylinder al 221 atm? atm Use and molek 5.24K 138 K 246 K

Add the phrase that completes the thought in the underlined sentence.Underlined Sentence: She reached into a box for Turtle and Frog, two plastic souvenirs from

Find the DNA replication for the following code: AAGTCCTCA

To determine the molar mass of an element, one must know the element'sa. number of isotopes.b average atomic massc avogradro constantd atomic number

Point Z(-5, -6) was translated to Z'(-8, 4). Describe the direction and distance of the translation. Please hurry!

Find the measure of the missing angle. A 43° Help ASAP plz

Eddie needs to paint a fence which has 10,000 square feet of surface. One gallon of paint covers 600 square feet. How many whole gallons of paint will he need?

Gulliver tossed a coin 100 times and got 43 heads. What percent of the tosses where tails?