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never [62]
3 years ago
13

How many atoms of each element are contained in a single formula unit of Iron III formate, Fe(CH02)3 x H20? What percentrage by

mass of the compound is water?
Chemistry
1 answer:
dedylja [7]3 years ago
7 0
The percentage by mass of the compound of water is going to be 8.62%.
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Iron and oxygen react together to make iron (III) oxide (rust). You know that this is a chemical reaction and not a nuclear reac
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The atoms didn't change we only added 2 different ones together. 2nd one is right
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4 years ago
A cathode ray tube is made of glass with a small amount of some kind of gas in it. It has metal electrodes at each end to pick u
Butoxors [25]

Answer:

One of the main uses of the cathode ray tube is in the Cathode  ray oscilloscope

Explanation:

Cathode rays are produced when a gas in an evacuated glass at very low pressure and high pressure breaks up into positive and negative ions. the negative ions move towards the anode(positive electrode) while the positive ions move towards the cathode(negative electrode), and there they knock off electrons (which are known as cathode rays) from the metal plate of the cathode.

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5 0
3 years ago
What are some similarities amongst elements within a group?
kifflom [539]
Elements in the same group have the same amount of electrons.

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8 0
3 years ago
A sample of N2(g) was collected over water at 25°C and 730 torr in a container with a volume of 340 mL. The vapor pressure of wa
AnnZ [28]

Answer:

D. 0.36 g

Explanation:

When a gas is collected over water, the total pressure is the sum of the pressure of the gas and the pressure of the water vapor.

Ptotal = Pwater + PN₂

PN₂ = Ptotal - Pwater = 730 torr - 23.76 torr = 706 torr

We can find the mass of N₂ using the ideal gas equation.

P.V=n.R.T=\frac{m}{M} .R.T\\m=\frac{P.V.M}{R.T} =\frac{730torr.0.340L.28g/mol}{(0.08206atm.L/mol.K).298K} .\frac{1atm}{760torr} =0.36g

6 0
3 years ago
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