carmenfuentes
carmenfuentes
19-04-2017
Chemistry
contestada
How many atoms are in 167 g of calcium?
Respuesta :
leggetlove
leggetlove
19-04-2017
1) Divide grams of Ca by the atomic weight of Ca. This gives moles of Ca.
2) Multiply moles of Ca by Avogadro's Number (6.022 x 10^23 atoms mol^-1). This yields the answer you seek
Answer Link
VER TODAS LAS RESPUESTAS ( 47+ )
Otras preguntas
What is the best way to draw conclusions?
Given 35,000, find each share in the ratio 2:5
Why is the Declaration of Independence considered a revolutionary document? It states the colonies are separating from British rule. Fifty-six colonial repre
Pressure __________ with depth to support the fluid weight above. a. decreases c. stays the same b. increases d. not enough information to answer
Which of these coordinating conjunction But However Although
If we use energy more efficiently what do we get more of from our energy
Calculate the number of atoms contained in a cylinder 1 um in diameter by 1 um deep of magnesium. Round off your answer to eleven significant figures.
Thirty copies of a textbook weigh a total of 75 lb. What is the weigh of each book?
20% of a restaurants customers order the chefs special. 230 customers are anticipated to dine at the restaurant tonight. The standard deviation for this binomia
What barriers could there be for a child’s social, emotional development if a child has speech and language needs. How could you remove the barriers?
