What is the relative formula mass of: NaBr, CO2, H2S, BaSO4, Cu(NO3)2, FeCL3?

Profile picture

VERIFIED

Verified tutor tick

Josh Prince

I want to help you achieve amazing GCSE results!

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 + 16 + 16 + 14 + 16 + 16 + 16 = 187.5 FeCl3: 55.8 + 35.5 + 35.5 + 35.5 = 162.3

Josh also answered

Asked in Chemistry βš›οΈ

ASKED BY BONNIE

CHEMISTRY βš›οΈ

A negative ion is formed by metals/non-metals?

A negative ion is formed when an element gains one or more electrons. For example, chlorine (Cl) can gain an electron to form Cl- When non-metals an...

ASKED BY KIRAN

CHEMISTRY βš›οΈ

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 NICOLE

CHEMISTRY βš›οΈ

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 SELINA

CHEMISTRY βš›οΈ

What is specific heat capacity?

It is the constant assigned to a material used for calculating heat

ASKED BY NOOR

CHEMISTRY βš›οΈ

What is a dynamic equilibrium?

Some reactions are able to go in two directions; forward and reverse. They are known as reversible reactions. When the rate of the forward reaction ...

ASKED BY RUBY

CHEMISTRY βš›οΈ

Reaction between Zinc and dilute sulfuric acid: a student measures the time taken for 25cm3 of H2 gas to be given off. zinc granules:225sec, zinc pellet:114sec. Mean rate of reaction=? For each?

You just divide 25 cm^3 by 225 sec for the zinc granules, and for the zinc pellets 25 cm^3 by 114 sec. This will give you a reaction rate in cm^3 pe...

ASKED BY ROSIE

CHEMISTRY βš›οΈ

GCSE Chemistry - Describe a test for nitrate ions?

Nitrate ions (NO3-) can be detected by reducingthem to ammonia. This is done by: adding sodium hydroxide solution, then aluminium powder or foil hea...

ASKED BY BONNIE

CHEMISTRY βš›οΈ

A positive ion is formed by metals/ non - metals?

A positive ion is formed when an element loses one or more electrons. For example, sodium (Na) can lose an electron to form Na+. When non-metals and...

ASKED BY GEORGE

CHEMISTRY βš›οΈ

What’s a constructive plate boundary ??

A constructive plate boundary, sometimes called a divergent plate margin, occurs when tectonic plates move apart. Volcanoes are formed as magma well...

ASKED BY LIM

CHEMISTRY βš›οΈ

When chlorine gas was bubbled into an aqueous potassium iodide solution ,the colour of the solution changed from colourless to brown .explain why?

Chlorine is higher on the reactivity scale than iodine. This means it is able to displace iodine, which is what has happened: Chlorine + Potassium i...

Find me a tutor

We take your privacy seriously. View our policy.