What is the percent by mass of chlorine in NaCi? total mass of element in compound molar mass of compound Use %Element x 100
C.
This is because the number of products is greater than the number of reactants.
This question calls for Charles' Law (one of the gas laws) because it deals with volume and temperature of a gas. Charles' Law is as follows:
V₁/T₁ = V₂/T₂
Just plug in what you know! The initial volume and temperature (V₁ and T₁) are 2.3L and 24⁰C. The final volume (V₂) is 3.0L. Solve for T₂ algebraically:
2.3/24 = 3.0/T₂ *cross multiply here
2.3T₂ = 72
T₂ = 31.3⁰C
Now, convert to Kelvin by adding 273 to the temperature.
31.3 + 273 = 304.3K
The answer must be D because that is the only option where the balloon would reach at least 3.0L.
Answer:
9.42g/cm3
Explanation:
Data obtained from the question include the following:
Mass of the metal = 24.50g
Volume of metal = 2.6 ml = 2.6cm3
Density =..?
The density of a substance is defined by the mass of the substance per unit volume of the substance. It is represented mathematically as:
Density = Mass /volume
With the above formula, we can obtain the density of the metal as follow:
Density = Mass/volume
Density = 24.50g/2.6cm3
Density = 9.42g/cm3
