Answer:
$18.30
Explanation:
The change is the amount left over after the selling price has been matched by the buyer.
Let us find the total cost of what of Ms. Kuhn bought;
For the shirt;
Cost = 4 shirts for $15.95 each = 4(15.95) = $63.8
2 new belts for $8.95 each = 2(8.95) = $17.9
Total cost = $63.8 + $17.9 = $81.7
The amount of change left = $100 - $81.7 = $18.3
Answer:
aldehyde and wittig reagent
Explanation:
Alkenes are the organic compounds with at least one c=c. They are homologous series with the general molecular formula of CnH2n.
The symbol R in the uploaded file is an alkyl, which has general formula of CnH2n+1.
Wittig reagent contains Phosphine with phosphorus and an oxygen atom the number (n) in the alkyl groups determines the number of carbon atoms in the resulting alkene.
Yes, they will be able to make enough silver to fill the order. They possess more reactants than are necessary.
Zinc reduces silver nitrate to silver metal according to the following equation.
2AgNO₃ + Zn → 2Ag + Zn(NO₃)₂
From the equation
2 moles of AgNO₃ produce 2 moles of silver.
If we consider the zinc to be used number of moles=mass/RAM
RAM of zinc =65.38
No. of moles=500/65.38
=7.6476moles
To produce 800 grams of silver they require:
800/107.868 moles=7.4165 moles of silver nitrate since the ratio of silver nitrate to silver produced is 1:1
The number of moles of silver nitrate available=1500/169.872
=8.83 moles.
As the amount of reactants available is more than the required the company will make it in producing the 800 grams of silver required.
<h3>More about silver nitrate</h3>
An inorganic substance with the chemical formula AgNO3 is called silver nitrate. It is coordinated in a trigonal planar structure when it is solid. It is frequently employed as a precursor to other compounds that include silver. As a staining agent for protein visibility in PAGE gels and scanning electron microscopy, it is utilized in the production of photographic films as well as in lab settings.
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