Chemistry Final Review Part 3

A container has 0.679 mol of gas at STP. How many liters does this gas take up?

• 15.2 L

• 0.303 L

• 56.0 L

• 24.7 L

A chemical reaction in the human body produced 1.770 L of methane (CH₄) gas at STP. How many moles of methane (CH₄) were produced in the reaction?

• 39.65 L

• 0.7900 L

• 98.59 L

• 6.749 L

Tags

NGSS.HS-PS1-7

Water is known as the _________ solvent.

Tags

NGSS.HS-ESS2-5

The bent structure of water causes it to be highly _____.

Tags

NGSS.HS-ESS2-5

100 g of 60°C water has 30 g of K₂Cr₂O₇ dissolved in it. Is this solution saturated, unsaturated, or supersaturated?

• saturated

• unsaturated

• supersaturated

How many grams of KCl can be dissolved in 100g of 74°C water?

• 50 g

• 40 g

• 70 g

• 60 g

Tags

NGSS.HS-PS1-5

4.03 mol of solute are dissolved in 5.71 L of solution. What is the molarity of the solution?

• 0.706 M

• 1.42 M

• 1.13 M

• 0.957 M

A student has 250 mL of a 5.0 M HCl solution. What would the total volume of this solution be if the student diluted it to a 0.750 M HCl solution?

• 1.67 L

• 1.50 L

• 1.18 L

• 1.48 L

A student spills a nonpolar oil onto a lab table. Which of the following solvents would clean the lab table the best?

• Toluene

• Water

• Acetone

• DMSO

Which of the following will DECREASE the rate of dissolution for a solid polar solute in water?

• Reducing the temperature

• Agitating (stirring) the solution

• Increasing the surface area of the solute

• Increasing the temperature

Tags

NGSS.HS-PS1-5