What was Thomson's model of the atom called?
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C + O2 -> CO2
Oxygen is the excess reactant (doesn’t get used up in reaction, therefore mass of o2 is irrelevant) so use carbon (the limiting reactant) to calculate the mass of CO2
u should get 48.4g
Oxygen is the excess reactant (doesn’t get used up in reaction, therefore mass of o2 is irrelevant) so use carbon (the limiting reactant) to calculate the mass of CO2
u should get 48.4g
Following chemical reaction is involved for the reaction between K3PO4 and NiCl2
2K3PO4 + 3NiCl2 → 6KCl + Ni3(PO4)2
Volume of solutions is converted to litres for present calculations (1litre = 1000ml)
number of moles of NiCl2 = 0.130 × 0.0116
=0.001508 mol
Now,
∴ mole of K3PO4 =
=0.001005 mol
given that, K3PO4 is 0.205 M
i.e. 0.205 mol of K3PO4 is present in 1 litre of solution
then 0.001005 mol is present in X litre of solution
∴X =
=0.004902 litre =4.902ml
2K3PO4 + 3NiCl2 → 6KCl + Ni3(PO4)2
Volume of solutions is converted to litres for present calculations (1litre = 1000ml)
number of moles of NiCl2 = 0.130 × 0.0116
=0.001508 mol
Now,
∴ mole of K3PO4 =
=0.001005 mol
given that, K3PO4 is 0.205 M
i.e. 0.205 mol of K3PO4 is present in 1 litre of solution
then 0.001005 mol is present in X litre of solution
∴X =