I am having some difficulty with interpreting some questions and would like to get some direction on that, please. Some of the questions have figures given in litters, tons, kg; and some have density given. To be honest, I am totally confused now as I cant seem to find the pathway to solving them. Help as to how I should approach it would be very helpful to me, please. For instance, I know the different units in a question must be converted to one specific unit but can't seem to figure out the convention units. Are the density figures given in the question have any significance? How do I apply them, please? some examples of the question are: - Certain race cars use methanol (CH3OH; also called wood alcohol) as a fuel. Methanol has a molecular mass of 32.0 g/mol and a density of 0.79 g/mL. The combustion of methanol occurs according to the following equation: 2CH3OH + 3O2 → 2CO2 + 4H2O In a particular reaction 2.00 L of methanol are reacted with 80.0 kg of oxygen. What is the limiting reactant? - The fertilizer ammonium sulfate [(NH4)2SO4] is prepared by the reaction between ammonia (NH3) and sulfuric acid:2 NH3(g) + H2SO4(aq) → (NH4)2SO4(aq)How many kilograms of NH3 are needed to produce 1.00 × 105 kg of (NH4)2SO4?- The annual production of sulfur dioxide from burning coal and fossil fuels, auto exhaust, and other sources is about 26 million tons. The equation for the reaction isS(s) + O2(g) → SO2(g)How much sulfur (in tons), present in the original materials, would result in that quantity of SO2?Just a direction on how to approach these especially dealing with the different units would be very helpful pleas. Thanks.
States of Matter
The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
I am having some difficulty with interpreting some questions and would like to get some direction on that, please.
Some of the questions have figures given in litters, tons, kg; and some have density given. To be honest, I am totally confused now as I cant seem to find the pathway to solving them. Help as to how I should approach it would be very helpful to me, please.
For instance, I know the different units in a question must be converted to one specific unit but can't seem to figure out the convention units.
Are the density figures given in the question have any significance? How do I apply them, please?
some examples of the question are:
- Certain race cars use methanol (CH3OH; also called wood alcohol) as a fuel. Methanol has a molecular mass of 32.0 g/mol and a density of 0.79 g/mL. The combustion of methanol occurs according to the following equation: 2CH3OH + 3O2 → 2CO2 + 4H2O In a particular reaction 2.00 L of methanol are reacted with 80.0 kg of oxygen. What is the limiting reactant?
- The fertilizer ammonium sulfate [(NH4)2SO4] is prepared by the reaction between ammonia (NH3) and sulfuric acid:
2 NH3(g) + H2SO4(aq) → (NH4)2SO4(aq)
How many kilograms of NH3 are needed to produce 1.00 × 105 kg of (NH4)2SO4?
- The annual production of sulfur dioxide from burning coal and fossil fuels, auto exhaust, and other sources is about 26 million tons. The equation for the reaction is
S(s) + O2(g) → SO2(g)
How much sulfur (in tons), present in the original materials, would result in that quantity of SO2?
Just a direction on how to approach these especially dealing with the different units would be very helpful pleas. Thanks.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
