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Question 9 (4 points) Use the table to answer the question. Mass Substance Silver Color light...
Question 4 (2 points) Which color would the chlorophyll a pigment absorb the best? black green...
Question 4 (2 points) Which color would the chlorophyll a pigment absorb the best? black green O yellow red Question 5 (2 points) The reaction center (P680) of photosystem II has the ability to split water to make O2 but only when P680 is reduced when hydrogen bound to water oxidized free floating Question 6 (2 points) The electron transport chain of photosynthesis creates a proton gradient that is used to produced which of the following products: ATP H20 NADPH...
Question 4 2.5 pts Following the procedure in lab, a student heated their 14.57 g metal...
Question 4 2.5 pts Following the procedure in lab, a student heated their 14.57 g metal sample to 100.0°C. The metal was added to a coffee cup calorimeter containing 54.849 g of water at 29.5°C. The final temperature of the water was 37.5° C. Assuming no heat was absorbed by the calorimeter, calculate the specific heat of the metal. Report your answer in units of a
Question 4 2.5 pts Following the procedure in lab, a student heated their 14.57 g metal...
Question 4 2.5 pts Following the procedure in lab, a student heated their 14.57 g metal sample to 100.0°C The metal was added to a coffee cup calorimeter containing 54.849 g of water at 29.5°C. The final temperature of the water was 37.5°C. Assuming no heat was absorbed by the calorimeter, calculate the specific heat of the metal. Report your answer in units of 544.6089
4. Both high and low temperatures reduced the amount of color (product) produced. However, the cause...
4. Both high and low temperatures reduced the amount of color
(product) produced. However, the cause of the reduction is
different in the two cases. Explain what the differences are.
me. The wa Activity 2: temperature In this activity, you will examine the effect of different temperatures on the activity of the enzyme. and enzyme mixture must come to a specific tempera yme mixture must come to a specific temperature before the addition of the substrate. 1. Write your hypothesis...
need help ASAP Question 9 4 pts Exactly 1.100 g of CO2(g) was introduced into a...
need help ASAP
Question 9 4 pts Exactly 1.100 g of CO2(g) was introduced into a 1.00-L flask that already contained some O2 gas. The flask was warmed to 100 °C and the total pressure was found to be 815 mmHg. No chemical reaction occurred between CO2 and 02. Calculate the mass of Oz in the flask. 1.12 g 02 O 0.160 g 02 O 0.754 g 02 O 0.820 g 02 O 0.321 g 02 1.5 pts Question 10...
Table 1. Selected Properties of Some Metals Atomic Mass Specific Heat (J/g°C) Color or Metal Density...
Table 1. Selected Properties of Some Metals Atomic Mass Specific Heat (J/g°C) Color or Metal Density (g/mol) Appearance Magnesium 24.31 1.02 Shiny gray metallic 1.738 g/cm Aluminum 26.98 0.90 Silvery gray metallic 2.70 g/cm Nickel 58.69 0.44 Silver, gold tinge metallic 8.908 g/cm Copper 63.55 0.38 Lustrous red-orange 8.96 g/cm Zinc 65.38 0.51 Silver-gray metallic 7.14 g/cm 107.87 Shiny white metallic 10.49 g/cm Silver 0.24 Gold 196.87 0.13 Metallic yellow 19.30 g/cm 9.78 g/cm 0.12 Lustrous brownish silver Bismuth 208.98...
have united attempts/There is no attempt penalty Question (6 points) See page 236 1st attempt See...
have united attempts/There is no attempt penalty Question (6 points) See page 236 1st attempt See Periodic Table See Hint An insulated container is used to hold 48.5 g of water at 39.8°C. A sample of copper weighing 7.60 g is placed in a dry test tube and heated for 30 minutes in a boiling water bath at 100.0°C. The heated test tube is carefully removed from the water bath with laboratory tongs and inclined so that the copper slides...
Question 3 (4 points) The vapor pressure of a liquid is dependent on: the temperature of...
Question 3 (4 points) The vapor pressure of a liquid is dependent on: the temperature of the liquid and intermolecular forces of attraction in the liquid the temperature of the liquid and the surface area of the liquid only on the surface area of the liquid only the temperature of the liquid O only the forces of intermolecular attraction in the liquid Question 4 (4 points) If the atmospheric pressure over a sample of liquid is increased, the boiling point...
please quick help on those two questions 4 pts Question 9 Exactly 1.100 g of CO2(g)...
please quick help on those two questions
4 pts Question 9 Exactly 1.100 g of CO2(g) was introduced into a 1.00-L flask that already contained some O2 gas. The flask was warmed to 100 °C and the total pressure was found to be 815 mmHg. No chemical reaction occurred between CO2 and O2. Calculate the mass of Oz in the flask. 1.12 g 02 0.160 g 02 0.754 g 02 0.820 g 02 0.321 g 02 2 pts Question 12...
question 4 and 5 4. A 2.00-g sample mixture of CaCl 211O and K:CO H:O is...
question 4 and 5
4. A 2.00-g sample mixture of CaCl 211O and K:CO H:O is added to water. Afler drying, the mass of the recovered CaC O HO precipitate is 0.654 g. Upon addition of K.CO HO to the supernatant there is a small amount of precipitate formed indicating that K CO.H O is the limiting reactant. What is the percent composition of the salt mixture? Suppose that the CaCO..Ha0 in question 4 is mistakenly dried at 120°C rather...
Question 4 (2 points) Which color would the chlorophyll a pigment absorb the best? black green O yellow red Question 5 (2 points) The reaction center (P680) of photosystem II has the ability to split water to make O2 but only when P680 is reduced when hydrogen bound to water oxidized free floating Question 6 (2 points) The electron transport chain of photosynthesis creates a proton gradient that is used to produced which of the following products: ATP H20 NADPH...
Question 4 2.5 pts Following the procedure in lab, a student heated their 14.57 g metal sample to 100.0°C. The metal was added to a coffee cup calorimeter containing 54.849 g of water at 29.5°C. The final temperature of the water was 37.5° C. Assuming no heat was absorbed by the calorimeter, calculate the specific heat of the metal. Report your answer in units of a
Question 4 2.5 pts Following the procedure in lab, a student heated their 14.57 g metal sample to 100.0°C The metal was added to a coffee cup calorimeter containing 54.849 g of water at 29.5°C. The final temperature of the water was 37.5°C. Assuming no heat was absorbed by the calorimeter, calculate the specific heat of the metal. Report your answer in units of 544.6089
4. Both high and low temperatures reduced the amount of color
(product) produced. However, the cause of the reduction is
different in the two cases. Explain what the differences are.
me. The wa Activity 2: temperature In this activity, you will examine the effect of different temperatures on the activity of the enzyme. and enzyme mixture must come to a specific tempera yme mixture must come to a specific temperature before the addition of the substrate. 1. Write your hypothesis...
need help ASAP
Question 9 4 pts Exactly 1.100 g of CO2(g) was introduced into a 1.00-L flask that already contained some O2 gas. The flask was warmed to 100 °C and the total pressure was found to be 815 mmHg. No chemical reaction occurred between CO2 and 02. Calculate the mass of Oz in the flask. 1.12 g 02 O 0.160 g 02 O 0.754 g 02 O 0.820 g 02 O 0.321 g 02 1.5 pts Question 10...
Table 1. Selected Properties of Some Metals Atomic Mass Specific Heat (J/g°C) Color or Metal Density (g/mol) Appearance Magnesium 24.31 1.02 Shiny gray metallic 1.738 g/cm Aluminum 26.98 0.90 Silvery gray metallic 2.70 g/cm Nickel 58.69 0.44 Silver, gold tinge metallic 8.908 g/cm Copper 63.55 0.38 Lustrous red-orange 8.96 g/cm Zinc 65.38 0.51 Silver-gray metallic 7.14 g/cm 107.87 Shiny white metallic 10.49 g/cm Silver 0.24 Gold 196.87 0.13 Metallic yellow 19.30 g/cm 9.78 g/cm 0.12 Lustrous brownish silver Bismuth 208.98...
have united attempts/There is no attempt penalty Question (6 points) See page 236 1st attempt See Periodic Table See Hint An insulated container is used to hold 48.5 g of water at 39.8°C. A sample of copper weighing 7.60 g is placed in a dry test tube and heated for 30 minutes in a boiling water bath at 100.0°C. The heated test tube is carefully removed from the water bath with laboratory tongs and inclined so that the copper slides...
Question 3 (4 points) The vapor pressure of a liquid is dependent on: the temperature of the liquid and intermolecular forces of attraction in the liquid the temperature of the liquid and the surface area of the liquid only on the surface area of the liquid only the temperature of the liquid O only the forces of intermolecular attraction in the liquid Question 4 (4 points) If the atmospheric pressure over a sample of liquid is increased, the boiling point...
please quick help on those two questions
4 pts Question 9 Exactly 1.100 g of CO2(g) was introduced into a 1.00-L flask that already contained some O2 gas. The flask was warmed to 100 °C and the total pressure was found to be 815 mmHg. No chemical reaction occurred between CO2 and O2. Calculate the mass of Oz in the flask. 1.12 g 02 0.160 g 02 0.754 g 02 0.820 g 02 0.321 g 02 2 pts Question 12...
question 4 and 5
4. A 2.00-g sample mixture of CaCl 211O and K:CO H:O is added to water. Afler drying, the mass of the recovered CaC O HO precipitate is 0.654 g. Upon addition of K.CO HO to the supernatant there is a small amount of precipitate formed indicating that K CO.H O is the limiting reactant. What is the percent composition of the salt mixture? Suppose that the CaCO..Ha0 in question 4 is mistakenly dried at 120°C rather...
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