Answer:
artic is correct please give brainliest please??
0,26mol ------- 13g
1mol ------- x
x = (13g*1mol) / 0,26mol = 50g
It could be Ti or V
Answer:
30
Explanation:
atomic mass = proton number + neutron number
proton number is also atomic number
Answer:
Explanation:
For reaction stoichiometry problems like this, convert given data to moles and set up a ratio expression that relates to the balanced equation. That is ...
Given Rxn => Mg(OH)₂ + 2HCl => 2H₂O + MgCl₂
Given mass => 3.26g = (3.26g)/(58g/mol) = 0.056 mole Mg(OH)₂
If from equation 1 mole Mg(OH)₂ reacts with 2 moles HCl
then, 0.056 mole Mg(OH)₂ reacts with x moles HCl
Setting up ratio and proportion expression ...
=> (1 mole Mg(OH)₂) /(0.056 mole Mg(OH)₂) = (2 moles HCl)/x
=> x = [2(0.056)/(1)] mole HCl neutralized = 0.112mole HCl (36g/mol)
= 4.05 grams of HCl neutralized.
The balanced equation for the burning of N-butane is;
2C₄H₁₀ + 13O₂ → 8CO₂ + 10H₂O
stoi. ratio 2 : 13 : 8 : 10
molar mass 58 32 44 18
moles X 13 X/2 8X/2 10X/2
105.86 688.10 423.45 529.31
produced mass 18632.8 g 9527.6 g
moles of n-butane = X = 6.14 x 10³ g / 58 g mol⁻¹
hence other moles of compounds can be calculated.
Mass = molar mass * moles
mass fraction = mass / total mass
hence the mass fraction of
CO₂ = 18632.8 / 6.14 x 10³ = 3.03
H₂O = 9527.6 / 6.14 x 10³ = 1.55
the required mass of air = 688.10 x 32 = 22019.2 g = 2.20 kg