94.20 g/3.16722 mL = 29.74 g/mL
The ratio of mass to volume is equal to the substance's density. Thus, 29.74 g/mL is the density of whatever substance it may be. Density does not change for incompressible matter like solid and some liquids. Although, it may be temperature dependent.
Ionic charge for metals are always positive while the nonmetals have negative charges. The magnitude of charges in the periodic table increases from left to right.
The periodic table is a classification of elements according to their periodic properties.
Metals form positive ions while nonmetals form negative ions. However, the magnitude of ionic charge (positive or negative) increases from left to right in the periodic table.
For instance, group 1 elements form a charge of +1, group 2 elements form a charge of +2, group 3 elements have a charge of +3 and so on. The magnitude of charge continues to increases likewise across a period.
Learn more; brainly.com/question/81085
62 g of water are vaporized and the energy required is 2.4 kJ/g
So 62g x 2.4 kJ/g = 148.8 kJ or 148,800 Joules
Q = mCΔT
Q is energy in joules, m is mass of water, C is the specific heat, delta T is change in temp
148,800 = m(4.18)(41 - 19) = 1618g or 1.6 kg of water
NaHCO₃ + H⁺ = Na⁺ + H₂O + CO₂
n(NaHCO₃)=n(H⁺)
m(NaHCO₃)=M(NaHCO₃)n(NaHCO₃)=M(NaHCO₃)n(H⁺)
p=$m(NaHCO₃)=$M(NaHCO₃)n(H⁺)
p=9.20$/kg×84.0kg/kmol×10⁻³kmol=0.7728$
p≈0.77$
When solving for the mass of a compound when you’re given the number of moles present, you need to know the molar mass (how many grams there are in a mole of that compound).
In this case, we can make the following equation:
3.00(14.01 + 2(16.00))
In Nitrogen, the molar mass is 14.01 grams per mole, and Oxygen is 16.01 grams per mole.
However, because there are 2 oxygen atoms present per molecule, you must multiply it by two in order to solve for the molar mass.
Anyway:
3.00(14.01 + 2(16.00))
Simplify:
3.00(14.01 + 32.00)
3.00(46.01)
Multiply:
3.00(46.01) = 138.03
3.00 moles of NO2 has a mass of 138.03 grams.
-T.B.
