GCSE Chemistry- what is the equation to work out moles when you are given the volume and the concentration. Is it moles = volume x concentration?
Siara Jones
Graduate in Biological Sciences from the University of Buenos Aires in Argentina
Yes! But make sure you're working in the correct units. You should convert to the correct units before you start manipulating the equation. Amount in moles (mol) = concentration (mol/dm^3) X volume (dm^3).
Siara also answered
Asked in Chemistry ⚛️
ASKED BY TAEGON
CHEMISTRY ⚛️How many miles are there in 44g of CO2? How many molecules is this?
Assuming you mean moles rather than miles To calculate moles we use the equation moles=mass/Mr We have been given the mass in the question, and we c...
ASKED BY KIRAN
CHEMISTRY ⚛️How to calculate concentration of a solution?
Concentration (measured in moles per litre) = amount of solute (measured in moles) divided by the volume of solution (measured in litres) The amount...
ASKED BY DAISY
CHEMISTRY ⚛️What is the difference between a chemical and a phi social change?
Hi Daisy, a chemical change is where a chemical reaction has occurred and this is usually a one way reaction. For example, the carbon in wood combin...
ASKED BY DOMINIQUE
CHEMISTRY ⚛️How does an atom of lithium form an ionic bond with an atom of chlorine?
Lithium ‘loses’ its valence electron and forms a positive lithium cation. Chlorine ‘gains’ that electron and forms a negative chloride anion. The op...
ASKED BY NICOLE
CHEMISTRY ⚛️What is an acid and what is an alkali?
The answer to your question really depends upon the level of answer that you need. At a most basic level (excuse the chemistry pun!), acids taste so...
ASKED BY TOBY
CHEMISTRY ⚛️Why is potassium more reactive than sodium?
This is todo with the structure of the atoms. Both are in Group 1 of the periodic table so have one valence (outer) electron which is relatively eas...
ASKED BY JESS
CHEMISTRY ⚛️Compare decomposition reactions with combustion reactions?
Decomposition reactions are reactions in which one reactant breaks down at least two products. AB -> A + B This may be because the reactant is energ...
ASKED BY ADDIE
CHEMISTRY ⚛️G is a colourless crystalline solid which reacts with dilute nitric acid to give a colourless solution, H, and a colourless, odourless gas, I, which turns limewater milky. G has a lilac flame colour. Identify G, H and I (I’m aware that I is CO2)?
If you know that I is CO2, then you can probably already guess which anion it must have come from it in the reaction with the nitric acid.... All yo...
ASKED BY ADDIE
CHEMISTRY ⚛️G is a colourless crystalline solid which reacts with dilute nitric acid to give a colourless solution, H, and a colourless, odourless has, I, which turns limewater milky. G has a lilac flame colour. State the names of G, H and I?
Hi Addie. I hope you are well. Since the 'gas I' can turn the limewater milky, it must be carbon dioxide gas, meaning the crystalline solid is a car...
ASKED BY KIRAN
CHEMISTRY ⚛️What is the relative formula mass of: NaBr, CO2, H2S, BaSO4, Cu(NO3)2, FeCL3?
NaBr: 23 + 79.9 = 102.9 CO2: 12 + 16 + 16 = 44 H2S: 1 + 1 + 32.1 = 34.1 BaSO4: 137.3 + 32.1 + 16 + 16 + 16 + 16 = 233.4 Cu(NO3)2: 63.5 + 14 + 16 + 1...
Find me a tutor
We take your privacy seriously. View our policy.