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scZoUnD [109]
3 years ago
10

A hydrate is ​typically a crystalline compound in which water molecules are chemically bound to another compound or an element.

​When CuSO​4​​⋅​ 5H​2​O is heated in a crucible, there is a loss of water. How should a student determine the amount of water lost?
a.Subtract the mass of the CuSO​4​ from the mass of CuSO​4​⋅ 5H​2​O
b.Subtract the mass of the CuSO​4​⋅ 5H​2​O from the mass of CuSO​4
c.Add the masses of CuSO​4​⋅ 5H​2​O and CuSO​4
d.Multiply the masses of CuSO​4​⋅ 5H​2​O and CuSO​
Chemistry
1 answer:
dedylja [7]3 years ago
7 0

Answer:

Subtract the mass of the CuSO4⋅ 5H2O from the mass of CuSO4 is the right one

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The following properties are either physical or chemical. Which one is different from the rest based on those two categories?
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Boiling point: physical
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How many grams of beryllium chloride will be consumed if 987.5 g of magnesium chloride is produced?
Savatey [412]
The  number   Beryllium  chloride  consumed  is  calculated  as  follows

write  equation  for    reaction

that  is  BeCl2  + Mg  ----->  MgCl2  +Be

find  the  moles  of   MgCl2  produced

moles  =mass/molar  mass  of  MgCl2

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by   use  of  mole  ratio  between   BeCl2  to  Mgcl2  which  1:1  therefore  the  moles  of  BeCl2  is  also   10.39moles

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8 0
3 years ago
An unknown compound has the following chemical formula: where stands for a whole number. Measurements also show that a certain s
anygoal [31]

The question is incomplete, the complete question is;

An unknown compound has the following chemical formula:  

N2Ox  

where x stands for a whole number.  

Measurements also show that a certain sample of the unknown compound contains 3.7 mol of oxygen and 2.45 mol of nitrogen.  

Write the complete chemical formula for the unknown compound.

Answer:

The complete formula of the compound is N2O3.

Explanation:

Given;

Number of moles of N = 2.45 moles

Number of moles of O = 3.7 moles

Chemical formula of unknown compound = N2Ox

From the ratio of the number of moles of N to O;

2/x = 2.45/3.7

2 * 3.7 = x * 2.45

x = 2 * 3.7/ 2.45

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Answer:

The order of mole fraction in increasing order will be:

\chi_{Ne}

Explanation:

Relation between mole fraction and partial pressure of the component is given as:

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And hence the order of mole fraction will  also be same :

\chi_{Ne}

5 0
4 years ago
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