Answer:
13:2
With the number of moles of butane equal to 54 grams, it is possible to find the moles of O2 that can react with it. Taking coefficients from the reaction equation (13 O2 and 2 C4H10), the molar ratio of O2 to C4H10 is 13:2.
Explanation:
Answer:
The mass percent of a solution of 7.6 grams sucrose in 83.4 grams of water is 8.351 %.
Explanation:
Given,
Mass of Sucrose = 7.6 grams
Mass of Water = 83.4 grams
In this solution, Sucrose is solute and water is the solvent.
Mass percent of a solution can be calculated using the formula,
Mass percent = (Mass of Solute/Mass of Solution)(100)
As sucrose is solute, mass of solute = 7.6 grams
As the solution contains both Sucrose and Water,
Mass of solution = 7.6 grams + 83.4 grams = 91 grams
Substituting the values, Mass percent = (7.6/91)(100) = 8.351 %.
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Answer:
Cis and trans isomers
Explanation:
Existence of double bond in carbon rich compound confirms the presence of geometrical isomer in the compound. The compound showing geometrical isomer exists as cis and trans isomers.
Substituents or functional group around double bond decides that the compound will be cis or trans.
If functional group or bigger substituents are present on the same side of the double bond, the compound will be cis.
If functional group or bigger substituents are present on the opposite of the double bond, the compound will be trans.
Given parameters:
Mass of rectangular block of copper metal = 2695g
Dimensions of the block = 4.8cm x 5.5cm x 6.4cm
Unknown;
Density of the copper = ?
To solve this problem, we apply the density formula.
Density is an intensive property of all matter. It is defined as the mass per unit volume of any substance.
Mathematically,
Density =
The unit is usually in kg/m³ or g/cm³
Now, we need to derive the volume since mass is given already.
Volume of the rectangular block = length x width x height
= 4.8cm x 5.5cm x 6.4cm
= 168.96cm³
Let's solve for the density now;
input the parameters and solve;
Density of rectangular copper block =
= 15.95g/cm³
The density of the copper rectangular block is 15.95g/cm³