Answer:
B) 3.0 g/mL
Explanation:
density formula: mass/volume
15/5=3
Answer:
C
Explanation:
When a chemical substance gets in contact with an individuals eye in a laboratory, there is an area called the eye wash station that is used for washing off these substances. This station is important because when a chemical substance enters tour eye(s) you need to wash it off within 15 minutes after the injury has occurred.
Answer:
150.0 mL.
Explanation:
- It is known that the no. of millimoles of HNO₃ before dilution = the no. of millimoles of HNO₃ after dilution.
∵ (MV) before dilution = (MV) after dilution.
<em>∴ V before dilution = (MV) after dilution / M before dilution</em> = (0.15 M)(500.0 mL)/(0.50 M) = <em>150.0 mL.</em>
