kaeladicristofano kaeladicristofano

21-07-2017
Chemistry

contestada

what is the molecular formula of the compound whose molar mass is 120.0 g/
mol and empirical formula is SiO2

Respuesta :

dec77cat dec77cat

21-07-2017

M=120.0 g/mol

M(SiO₂)=A(Si) + 2A(O)
M(SiO₂)=28+2*16=60 g/mol

N=M/M(SiO₂)
N=120.0/60=2

(SiO₂)₂ or Si₂O₄

Answer Link

Otras preguntas

A line with a slope of 2 2 passes through (3,9) 3 , 9 . Which choice is an equation of this line?

A line is parallel to the y-axis on a coordinate plane. Which best describes the slope of the line

Can someone help me with my vocab? *It's on southern and eastern Asia history* • _________________ began to see themselves as one people and came togeth

In a survey, 250 adults and children were asked whether they know how toswim. The survey data are shown in the relative frequency table.What percentage of the p

PLEASE HELP ME ASAAAAAPPPPPPPPPPPP PLEASE HELP ME FAST What is 5 x 2/3 ? A) 3 1/3 B) 3 2/5 C) 5 2/3 D) 10/15

similarities between finding the perimeter and area of a polygon with and without the coordinate plane

How to solve this problem

Can someone help me with solving volume equations?

I need help on this question

Maintaining good conflict in a relationship is also known as the of a relationship A- development B- relaxing C- emotional part D- exercise