The number of molecules of Carbon(iv)Oxide produced when ...
The number of molecules of Carbon(iv)Oxide produced when 10.0g of CaCO\(_3\) is treated with 0.2dm\(^3\) of 1 Mole of HCL in the equation
CaCO\(_3\) + 2HCL ⇒ CaCl\(_2\) + H\(_2\) O + CO\(_2\) , is?
1.00 X 10\(^{23}\)
6.02 X 10\(^{23}\)
6.02 X 10\(^{22}\)
6.02 X 10\(^{24}\)
Correct answer is C
1 mole of CaCO\(_3\) = 100g or 6.02 X 10\(^{23}\)
liberated 1 mole of CO\(_2\) or 44g or 6.02 X 10\(^{23}\)
:100g = 6.02 X 10\(^{23}\)
10g of CaCO\(_3\) = x
cross multiply
[10g X 6.02 X 10\(^{23}\)] / 100g = x
⇒ x = 6.02 X 10\(^{22}\)
Since
6.02 X 10\(^{23}\) of CaCO\(_3\) liberated 6.02 X 10\(^{23}\) of CO\(_2\)
⇒ 6.02 X 10\(^{22}\) of CaCO\(_3\) will liberate 6.02 X 10\(^{22}\) of CO\(_2\)
The structural component that makes detergent dissolve more quickly in water than soap is ...
A chemical process in which there is a gain of electrons is known as? ...
Which of the following equations represents a substitution reaction? ...
Which of the following statements about chlorine and iodine at room temperature is correct? ...
The furring of kettles is caused by the presence in the water of? ...
1s2, 2s2, 2p6, 3s2, 3p6, 3d7, 4s2 An element with the electronic configuration above is a...
Which of the following substances decomposes when an electric current is passed through it? ...
Which of the following occurs when a solution of CuSO4 is electrolysed using copper electrodes?...