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\(_2\)
What is the chemical symbol for Polonium? ...
An increase in entropy can best be illustrated by ...
What is the change in the oxidation number of phosphorus in the following reaction? 4P(s) + 5O2(a...
C(s) + 2S(g) → CS2(g) ΔH = +89 kJ mol-1 The chemical equation above implies that...
Which of the following arrangements is in order of increasing ionization energy? ...
How many structural isomers can be written for the alkyl bromide, C4H9Br?...
2X(aq) + MnO2(s) + 4H+(aq) → X2(g) + Mn2+(aq) + 2H2O. The reaction above can be used for the labo...
The furring of kettles is caused by the presence in the water of? ...