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Question 14 4 pts The gas tank of a certain vehicle holds 12.4 gallons. How many...
A certain drug dosage calls for 284 mg per kg per day and is divided into...
A certain drug dosage calls for 284 mg per kg per day and is divided into four doses (1 every 6 hours). If a person weighs 215 pounds, how many milligrams of the drug should he receive every 6 hours? Round your answer to the nearest milligram. Do not include units with your answer. Question 14 4 pts If a truck averages 16 miles to the gallon, how many pounds of carbon dioxide are emitted into the atmosphere when the...
Question 2 (32 points) A large tank is filled to capacity with 200 gallons of pure...
Question 2 (32 points) A large tank is filled to capacity with 200 gallons of pure water. Brine containing 5 pounds of salt per gallon is pumped into the tank at a rate of 18 gallons per minute. The well-mixed solution is pumped out at the same rate. Find the amount of salt in pounds after 10 minutes. (round to the nearest tenth of a pound) Your Answer: Answer
Question 13 4 pts A certain drug dosage calls for 245 mg per kg per day...
Question 13 4 pts A certain drug dosage calls for 245 mg per kg per day and is divided into three doses (1 every 8 hours). If a person weighs 119 pounds, how many milligrams of the drug should she receive every 8 hours? Round your answer to the nearest tenth of a milligram. Do not include units with your answer.
Question 3 1 pts A gas tank with a volume of 22.1 L contains 4.1 moles...
Question 3 1 pts A gas tank with a volume of 22.1 L contains 4.1 moles of an ideal gas. The initial pressure of the gas is 7.5x10° Pa. The gas is compressed to half its original volume while the pressure stays constant. What is the final temperature of the gas in K? (Note: 1 mº = 1000 L) [Note: if you need to enter a number in scientific notation, use 'e. For example, 1200 = 1.2e3 and 0.0012 =...
A farmer estimates that his dairy cow produces 6,973 L of milk in a year. How...
A farmer estimates that his dairy cow produces 6,973 L of milk in a year. How many gallons is this? Round your answer to the nearest hundredth of a gallon. Do not include units with your answer. Question 11 4 pts You are ordering linoleum for a kitchen with dimensions 13 feet by 16 feet. When you get to the store, you find the linoleum is only sold in square yards. How many square yards should you order? Round your...
QUESTION 9 Philadelphia, Pennsylvania is 276 miles from Norfolk. How many gallons of gas will it...
QUESTION 9 Philadelphia, Pennsylvania is 276 miles from Norfolk. How many gallons of gas will it take if you average 38.4 miles per galon over the course of the trip? Give your answer with the correct number of significant digits. rement contains a number QUESTION 9 Philadelphia, Pennsylvania is 276 miles from Norfolk. How many gallons of gas will it take if you average 38.4 miles per galon over the course of the trip? Give your answer with the correct...
rrect Question 39 0/2 pts 57.) Ethylene gas (C2H4) is a ripening agent for fruit. Calculate...
rrect Question 39 0/2 pts 57.) Ethylene gas (C2H4) is a ripening agent for fruit. Calculate the Delta H for the formation of ethylene gas according to the following reaction: C2H6(g) yields C2H4 (g) + H2 (8) Based on the enthalpies of the reactions: 2 C2H6(E) + 702() yields 4 CO2 (8) + 6 H20 (1) DH = -3119.4 kJ C2H4 (8) + 302(g) yields 2 CO2(g) + 2 H20 (1) DH = -1410.9 kJ 2H2(g) + O2(e) yields 2...
3. A 1000-gallon tank initially contains 800 gallons of water with 3 lbs of salt dissolved...
3. A 1000-gallon tank initially contains 800 gallons of water with 3 lbs of salt dissolved in it. A water-salt mixture with a concentration of 0.4 lb of salt per gallon enters the tank at a rate of 8 gal/hr. The liquid in the tank is well-mixed and is pumped out of the tank at a rate of 10 gal/hr. Suppose you were asked to find an expression for the amount of salt in the tank at time t. (a)...
D Question 47 5 pts A gas sample is at 338 Kwith a pressure of 1.26...
D Question 47 5 pts A gas sample is at 338 Kwith a pressure of 1.26 atm. The molar mass of the gas is 44.01 g/mol. What is the density of gas? Report your answer to the nearest whole number and do NOT include units in your answer, only type in the number. Question 48 Consider the balanced chemical equation: 5 pts 4HSICS) – SIH_(g) + 3 SICIAN How many mol of SiCare produced for every 29 mol of HSC131)...
Question 10 4 If I rode my bike 36 miles this weekend, about how many kilometers...
Question 10 4 If I rode my bike 36 miles this weekend, about how many kilometers did I ride? Round your answer to the nearest tenth of a kilometer. Do not include units with your answer.
A certain drug dosage calls for 284 mg per kg per day and is divided into four doses (1 every 6 hours). If a person weighs 215 pounds, how many milligrams of the drug should he receive every 6 hours? Round your answer to the nearest milligram. Do not include units with your answer. Question 14 4 pts If a truck averages 16 miles to the gallon, how many pounds of carbon dioxide are emitted into the atmosphere when the...
Question 2 (32 points) A large tank is filled to capacity with 200 gallons of pure water. Brine containing 5 pounds of salt per gallon is pumped into the tank at a rate of 18 gallons per minute. The well-mixed solution is pumped out at the same rate. Find the amount of salt in pounds after 10 minutes. (round to the nearest tenth of a pound) Your Answer: Answer
Question 13 4 pts A certain drug dosage calls for 245 mg per kg per day and is divided into three doses (1 every 8 hours). If a person weighs 119 pounds, how many milligrams of the drug should she receive every 8 hours? Round your answer to the nearest tenth of a milligram. Do not include units with your answer.
Question 3 1 pts A gas tank with a volume of 22.1 L contains 4.1 moles of an ideal gas. The initial pressure of the gas is 7.5x10° Pa. The gas is compressed to half its original volume while the pressure stays constant. What is the final temperature of the gas in K? (Note: 1 mº = 1000 L) [Note: if you need to enter a number in scientific notation, use 'e. For example, 1200 = 1.2e3 and 0.0012 =...
A farmer estimates that his dairy cow produces 6,973 L of milk in a year. How many gallons is this? Round your answer to the nearest hundredth of a gallon. Do not include units with your answer. Question 11 4 pts You are ordering linoleum for a kitchen with dimensions 13 feet by 16 feet. When you get to the store, you find the linoleum is only sold in square yards. How many square yards should you order? Round your...
QUESTION 9 Philadelphia, Pennsylvania is 276 miles from Norfolk. How many gallons of gas will it take if you average 38.4 miles per galon over the course of the trip? Give your answer with the correct number of significant digits. rement contains a number QUESTION 9 Philadelphia, Pennsylvania is 276 miles from Norfolk. How many gallons of gas will it take if you average 38.4 miles per galon over the course of the trip? Give your answer with the correct...
rrect Question 39 0/2 pts 57.) Ethylene gas (C2H4) is a ripening agent for fruit. Calculate the Delta H for the formation of ethylene gas according to the following reaction: C2H6(g) yields C2H4 (g) + H2 (8) Based on the enthalpies of the reactions: 2 C2H6(E) + 702() yields 4 CO2 (8) + 6 H20 (1) DH = -3119.4 kJ C2H4 (8) + 302(g) yields 2 CO2(g) + 2 H20 (1) DH = -1410.9 kJ 2H2(g) + O2(e) yields 2...
3. A 1000-gallon tank initially contains 800 gallons of water with 3 lbs of salt dissolved in it. A water-salt mixture with a concentration of 0.4 lb of salt per gallon enters the tank at a rate of 8 gal/hr. The liquid in the tank is well-mixed and is pumped out of the tank at a rate of 10 gal/hr. Suppose you were asked to find an expression for the amount of salt in the tank at time t. (a)...
D Question 47 5 pts A gas sample is at 338 Kwith a pressure of 1.26 atm. The molar mass of the gas is 44.01 g/mol. What is the density of gas? Report your answer to the nearest whole number and do NOT include units in your answer, only type in the number. Question 48 Consider the balanced chemical equation: 5 pts 4HSICS) – SIH_(g) + 3 SICIAN How many mol of SiCare produced for every 29 mol of HSC131)...
Question 10 4 If I rode my bike 36 miles this weekend, about how many kilometers did I ride? Round your answer to the nearest tenth of a kilometer. Do not include units with your answer.
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