bre2099 bre2099

22-05-2019
Chemistry

contestada

How many molecules are present in 385.55g of NO2?

Respuesta :

legendarygirl9630 legendarygirl9630

22-05-2019

Answer:

5.05x10^24 molecules

Explanation:

1. Find the total mass of the compound

14 grams+32 grams= 46 grams per mole

2. Find the moles

385.55 g/ 46 g per mol= 8.38 moles

3. Multiply by Avogadro's Number (6.022 x 10^23)

8.38 moles x 6.022 x 10^23= 5.05x10^24 molecules

Answer Link

Otras preguntas

10. How does the cartoon, The Spanish Brute Adds Mutilation to Murder, portray the actions of Spain in Cuba? How do you know? re Ameri

in 2010, delta products reported sales revenue of $1,000,000, cost of goods sold of $600,000, salaries expense of $80,000, total assets of $1,400,000. what was

Chemical Reactions and Bonding

Janice is cutting ribbon to decorate a present. She has 7/8 foot of ribbon. She needs to make pieces that are 3/8 foot each. How many 3/8-foot pieces will she g

Read the excerpt from "Money to Us Is of No Value." We know that these settlers are poor, or they would never have ventured to live in a country which has been

how do you get chromosomes from your parents?

When reconciling petty cash, you determine that the total withdrawals according the petty cash slips is $169.00. Since the fund started with $200.00, there shou

Los complementos directos. Direct object pronouns. Read the first sentence, then complete each following sentence with the appropriate direct object pronoun. 1.

If 1495 J of heat is needed to raise the temperature of a 315 g sample of a metal from 55.0°C to 66.0°C, what is the specific heat capacity of the metal?

algebra 1. g(x)=x^{2}-x, g(3b)