Answer:
0.1gmin-1
Explanation:
mass = 0.5g
time = 5minutes
rate= mass/time = 0.1gmin-1
Electrons cause it is the right answer
Density of maple syrup = 1.325 g/ml
1000 ml contains 1325 g of maple syrup
In 100 g of maple syrup - 67 mg of Ca ions
Therefore in 1325 g of maple syrup - 67 mg /100g * 1325 g
= 887.75 mg of Ca
this means in 1000 ml - 887.75 mg of Ca
molar mass of Ca - 40 g/mol
therefore number of moles in 1000 ml - 0.88775 g /40 g/mol
molarity of Ca - 0.022 mol/dm³
Answer: D is right
Explanation: One mole contains 6.0225 ·10^23 molecules
Despite of the substance
