Calculate the number of moles in a sample of 113.47g of Ca(HCO3)2.

Using the AQA specimen data sheet we see that the RAMs of the following elements areCa = 40.1H = 1.0C = 12.0O = 16.0Therefore the total mass for one mole isCa + 2x(H + C + O+O+O)= 40.1 + 2x(1+12+16+16+16)= 40.1 + 2x61 = 40.1+122=162.1moles = mass / RAM=113.47/162.1 = 0.7 moles

JL
Answered by Jacob L. Chemistry tutor

2163 Views

See similar Chemistry A Level tutors

Related Chemistry A Level answers

All answers ▸

Why does the atomic radius decrease as you move along a period.


How do buffers work?


If hydrogen was burnt in a chamber full of oxygen, what would be the effect on the chamber pressure and why?


what is electronegativity and explain the trend in electronegativity as we go down the group?


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences