Hi folks,
Today we began a new unit on heat and temperature. To get the ball rolling, we spent time talking about what temperature is, and the three ways to measure it. We also did a lab where we heated water from solid form to liquid form and recorded the temperature every 30 seconds. We will discuss the findings of the lab next week.
For homework this week:
Today we began a new unit on heat and temperature. To get the ball rolling, we spent time talking about what temperature is, and the three ways to measure it. We also did a lab where we heated water from solid form to liquid form and recorded the temperature every 30 seconds. We will discuss the findings of the lab next week.
For homework this week:
Read pages 26-28 in the Conceptual Chemistry book. (Including the part in green.)
On page 33 do questions #41 - 44
On page 34 do questions #10, 13 - 19
On page 33 do questions #41 - 44
On page 34 do questions #10, 13 - 19
Answer the following questions.
1. If an object has a mass of 23.4g and a volume of 45ml what is it's density? Will it float in water?
2. If an object has a density of .001g/ml and you have a 90 liter sample of it…what's its mass? (Be sure to convert units here!)
3. If you have 23 kg of gold (yay for you!) how much gold (volume) do you have? (Use the magical internets to look up the density of gold.)
4. Again, with the help of the magical internets, find the metals with the 5 greatest densities. What is the least dense metal?
Also, using the enclosed lab template, I'd like you to write up today's lab. I've enclosed the directions for the lab so that you can include that in the methods section
- Put enough ice in to "double coat" the bottom of the container. 700g
2. Insert thermometer let temperature come to rest.
3. Turn on heat.
4. Take temperature every 30 seconds.
5. When water boils, take temp 4 more times then stop.
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