reyesr4469 reyesr4469

14-08-2017
Chemistry

contestada

One mole of nitrous acid (HNO2) contains 1.00 gram of hydrogen (H), 14.0 grams of nitrogen (N), and 32.0 grams of oxygen (O). What is the percent composition of nitrogen in nitrous acid?

Respuesta :

akiyama316 akiyama316

25-08-2017

mass % of nitrogen = mass of nitrogen*100 / total mass

= 14*100 / (1+ 14 + 32)

= 14*100 / 47
= 29.7 %

Answer Link

Otras preguntas

Given m||n, find the value of X.

PLEASE Help!!!!!! I will mark brainliest.

Your friend has been out of the country for five years, during which many changes have taken place in your home area. write a letter to your friend updating him

Why blowing at the ping ping ball did not change its shape and size?

Determine the equation of the line shown in the graph:

A veto is a check on the __________________ Branch's power

13. Dave wants to buy a ceramic vase. The sale price is £3. What was the original price? Sale! 70% off!

Find the area of following triangle ___________8.8 cm²19.36 cm²4.4 cm²

please help with 16 and 18

Change the following sentences from direct to indirect speech. 1. Talal asked Leo. "Do you want to begin?" 2. Maria asked us, "Have you seen my notes?" 3. Oscar