4. When 15.0 g of steam drops in temperature from 275.0 °C to 250.0 °C, how much heat energy is released? (Cp of H2O = 4.184 J/g °C) 5. How much heat (in J) is given out when 85.0 g of lead cools from 200.0 °C to 10.0 °C? (Cp of Pb = 0.129 J/g °C) 6. A certain mass of water was heated with 41,840 Joules, raising its temperature from 22.0 °C to 28.5 °C. Find the mass of the water, in grams. (Cp of H2O = 4.184 J/g °C) 7. How many joules of heat are needed to change 50.0 grams of ice at -15.0 °C to steam at 120.0 °C? (Cp of H2O = 4.184 J/g °C) 8. Calculate the number of joules given off when 32.0 grams of steam cools from 110.0 °C to ice at -40.0 °C. (Cp of H2O = 4.184 J/g °C) 9. The specific heat of ethanol is 2.46 J/g oC. Find the heat required to raise the temperature of 193 g of ethanol from 19oC to 35oC. 10. When a 120 g sample of aluminum (Al) absorbs 9612 J of energy, its temperature increases from 25oC to 115oC. Find the specific heat of aluminum.
This lab will require a write-up which highlights your observations and answers some questions where you can apply what you learned from your readings.  The instructions and questions are here for your convenience and will also be in the assignment drop box. The chart for noting your observations (sentence fragments are fine) and answering the written questions (well written paragraphs that make a connection to the readings) can be downloaded by clicking on the link. Materials and Equipment 1 1/2 cups all purpose flour 1/2 cup water Mixing bowls Plastic wrap  Procedure Place 1 1/2 cups of flour in a large mixing bowl and slowly add 1/2 cup of water while mixing with a fork. The goal is to have the dough completely damp (no dry flour in the bottom of the bowl) and slightly sticky. It might take slightly more or slightly less water but be careful not to use too much as wet dough is difficult to knead. Turn dough out onto a lightly floured surface and knead with lightly floured hands for one minute. Divide dough into 3 equal parts and wrap one part (1/3) with plastic. Recombine the two remaining thirds and knead for 5 more minutes then divide dough in half, wrapping one part ( the second third) in plastic wrap. Knead the remaining third for five more minutes then wrap in plastic. Unwrap the balls of dough and examine them. Record your observations of their appearance and elasticity. Gently stretch the dough until breaking and note your observations. How do the treatments differ? Take the first treatment and gentle wash the starch out with running water kneading the ball of dough gently in your hands. When the water runs clear, place the remaining gluten on paper towels to dry. Repeat above step with the two remaining kneaded samples.  Questions How did the physical properties (stickiness, elasticity, appearance) of the kneaded dough change over time? Do you feel maximum gluten formation was achieved with any of the samples? How much kneaded time do you feel would be appropriate? Describe the appearance of the washed product. Is it stringy or smooth and capable of being stretched into a sheet? Relate the properties of the washed gluten to the characteristics of the kneaded dough samples. If you were to propose a forth treatment designed to maximize gluten formation, what techniques and materials would you use? Please go beyond just proposing additional kneading time and explain the science behind your choices. What are some other ingredients that could be used to replace the structure of gluten ? What chemicals or characteristics do these gluten replacements contribute that make them suitable replacements?
check the materials included.. answer every question and include the answers and how you solved it if its an equation.. shortly explain your answer ( very briefly) 3 pages max.. Inlcude questions and answers. Due in 9 hours from now but it shouldn't take that long if you're good at chemistry I included the questions and some pages that might help
Poetry Analysis Essay 750 words MLA formatted Explain the  figurative language (Personification, tone, etc) , and what the meaning behind it. Quote the stanza ex (1,2) Since the max is 750, 2 devices is fine
