1. Hydrogen and oxygen gas combine explosively to produce water. Write a balanced chemical equation for this process. If 10 mol of hydrogen reacted with oxygen, what volume of liquid water could be produced?
2. You sometimes hear in a medical show on TV something like “Give the patient 200 cc’s of medicine X”.
Given that a litre is a cubic decimetre, and that a cc is short for cubic centimetre, show that a cc is also a millilitre.
3. A label on a soft drink bottle indicates that it contains 10% sugar w/vol. This means the sugar concentration is 10 g/100 ml. Given a teaspoon of sugar weighs 4 g, calculate how many teaspoons of sugar you would consume if you drank a 600 ml bottle of the soft drink.
The rest i managed to complete but its just these three that I am having a difficult time with :/ Thank you
2H2 + O2 ==> 2H2O
10 mols H2 x (2 mol H2O/2 mols H2) = 10 mols H2O produced.
1. To write a balanced chemical equation for the explosive reaction between hydrogen and oxygen gas to produce water, we need to consider the stoichiometry of the reaction. The chemical formula for water is H2O. Since the hydrogen gas exists as H2 and oxygen gas as O2, the balanced equation is:
2 H2 + O2 -> 2 H2O
This equation shows that 2 moles of hydrogen gas react with 1 mole of oxygen gas to produce 2 moles of water.
Now, let's calculate the volume of liquid water that could be produced if 10 moles of hydrogen reacted with oxygen. We can use the concept of molar volume, which is the volume occupied by one mole of any gas at a specific temperature and pressure. For gases at room temperature and pressure, the molar volume is approximately 22.4 liters per mole.
From the balanced equation, we see that 2 moles of H2 produce 2 moles of H2O. Therefore, 10 moles of H2 will produce (10/2) x 2 = 20 moles of H2O.
Using the molar volume of gases, we can convert the moles of water to volume:
20 moles of water x 22.4 liters/mole = 448 liters
Thus, if 10 moles of hydrogen react with oxygen, 448 liters of liquid water could be produced.
2. To show that a cc (cubic centimeter) is equal to a milliliter (ml), we need to understand the conversion factors between different units of volume.
1 liter (L) is equal to 1,000 cubic centimeters (cc) because 1 liter = 10 cm x 10 cm x 10 cm = 1,000 cc.
Additionally, 1 milliliter (ml) is equal to 1 cubic centimeter (cc) because they are essentially the same unit of volume.
Therefore, we can conclude that a cc is equal to a milliliter: 1 cc = 1 ml.
3. The label on the soft drink bottle indicates that it contains 10% sugar w/vol, meaning the sugar concentration is 10 grams per 100 milliliters (ml) of the drink.
To calculate the amount of sugar consumed in a 600 ml bottle of the soft drink, we can use the given sugar concentration of 10 g/100 ml.
10 g of sugar is present in 100 ml of the drink.
To determine the amount of sugar in 600 ml of the drink, we can use a proportion:
(10 g / 100 ml) = (x g / 600 ml)
Cross-multiplying gives:
100 ml * x g = 10 g * 600 ml
100x = 10 * 600
100x = 6000
x = 6000 / 100
x = 60 g
Therefore, if you drink a 600 ml bottle of the soft drink, you would consume 60 grams of sugar. Since a teaspoon of sugar weighs 4 grams, you would consume 60/4 = 15 teaspoons of sugar.