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

what is .00185 as a fraction

Which of the following quantum number combinations is not allowed in an atom? n = 2, l = 0, m subscript l = 0 n = 3, l = 2, m subscript l = -1 n = 6, l = 5,

find cube of a)-0.16 b)-2/7 c)14

David drew pqr and stu so that p s, pr = 12, su = 3, pq = 20, and st = 5. are pqr and stu similar? if so, identify the similarity postulate or theorem that appl

What term is used to describe an animal that eats only plants? a. omnivore b. herbivore c. carnivore d. statisvore

Why did Benjamin Franklin start a group called The Junto ? A;to bring together like-minded individuals to share ideas B;to bring together people who wanted to

Express 3x3x3x3x3x3 in exponent form

the scatter plot below shows the number of pages scanned (y) in different number of hours (x) by a scanning machine: plot ordered pairs 0, 500 and 1, 1500 and 2

Which function in vertex form is equivalent to f(x) = x2 + x +1?

Arthur ashe was particularly vocal in his criticism of north africa’s apartheid policies. true false