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1) a 1,084g sample of hydrate is heated, leaving 0,762g ofanhydrous residue. a)

1) a 1,084g sample of hydrate is heated, leaving 0,762g ofanhydrous residue. a) how many grams of water were driven off?b)how many moles of water were driven off?c) what is the pe…

1) a 2000 kg car is traveling on a banked curved icy road. the road is banked at

1) a 2000 kg car is traveling on a banked curved icy road. the road is banked at an angle of 15.0 degrees and has a radius of curvature of 500m. the velocity of the car necessary …

1) a 3.70g sample of sodium is allowed to react completely with sulfur to form a

1) a 3.70g sample of sodium is allowed to react completely with sulfur to form a sulfide that weighs 6.30g. calculate the following: mass of sulfur, moles of sulfur, moles of sodi…

1) a 50 ML solution of NaOH was titrated with 39.7 mL of .9781 M HCL. what is th

1) a 50 ML solution of NaOH was titrated with 39.7 mL of .9781 M HCL. what is the concentration of the NaOH solution 2)Twenty-five ML of .100 M lactic acid (ka=1.4×10^-4) is titra…

1) a 50 ML solution of NaOH was titrated with 39.7 mL of .9781 M HCL. what is th

1) a 50 ML solution of NaOH was titrated with 39.7 mL of .9781 M HCL. what is the concentration of the NaOH solution 2)Twenty-five ML of .100 M lactic acid (ka=1.4×10^-4) is titra…

1) a 50.0 ml sample of a 1.00 M solution of CuSO4 is mixedwith 50.0 ml of 2.00 M

1) a 50.0 ml sample of a 1.00 M solution of CuSO4 is mixedwith 50.0 ml of 2.00 M KOH in a calorimeter. the temperature ofboth solutions was 20.2 C before mixing and 26.3C after mi…

1) a = g sin?1. Assuming that Adam starts from rest at the top of the ramp and t

1) a = g sin?1. Assuming that Adam starts from rest at the top of the ramp and that you ignore the effect of friction, how fast would he be moving when he reaches the bottom of th…

1) a banking system would typically only use integer arithmetic a) true b) false

1) a banking system would typically only use integer arithmetic a) true b) false 2)Floating point arithmetic is more reliable than integer arithmetic a)true b)false 3)An MP3 file …

1) a bond with a face value of $100,000 and a quoted price of 101 5/8 as a selli

1) a bond with a face value of $100,000 and a quoted price of 101 5/8 as a selling price of? 2) The maturity value of a $2,000, 6%, 60-day note receivable dated february 10th is? …

1) a book of mass 3 kg rests on a plank. you tilt one end of the plank and slowl

1) a book of mass 3 kg rests on a plank. you tilt one end of the plank and slowly increase the angle of the tilt. the coefficient of static friction between the book and the plank…

1) a book of mass 3 kg rests on a plank. you tilt one end of the plank and slowl

1) a book of mass 3 kg rests on a plank. you tilt one end of the plank and slowly increase the angle of the tilt. the coefficient of static friction between the book and the plank…

1) a buffer is prepared with 0.15 M CH3COO- and 0.57 M CH3COOH. What is the PH?

1) a buffer is prepared with 0.15 M CH3COO- and 0.57 M CH3COOH. What is the PH? The ka for CH3COOH is 1.75x 10^-5 2) a buffer is prepared with 0.27 M NH4+ and 0.17 M NH3. What is …

1) a bullet of mass (m= 8.00g) is fired into a block of mass M =190 g that is in

1) a bullet of mass (m= 8.00g) is fired into a block of mass M =190 g that is initally at rest at the edge of a table of height h =1.00 m. The bullet remains in the block, and aft…

1) a cannon fires a shell that explodes that eplodes into two identical fragment

1) a cannon fires a shell that explodes that eplodes into two identical fragments at the higest point of its trajectory, a distance L from the cannon.  One of the fragments retrac…

1) a causal association between factor and outcome can refer to a) statistical i

1) a causal association between factor and outcome can refer to a) statistical independence b) secondary association c) indirect asosicaiton d) Drirection association e) both c &a…

1) a colony of an animal begins with one pair of mature animals, which will prod

1)a colony of an animal begins with one pair of mature animals, which will produce a pair of offspring (on male, one female) after two months. Assume that all animals mature in 2 …

1) a compound with a formula weight of 630, consists of 32.79% sodium , 13.02% A

1) a compound with a formula weight of 630, consists of 32.79% sodium , 13.02% Al, and the rest flourine. what is the empirical and molecular formula 2) a compund weighing 5.325 g…

1) a conducting sphere is charged up such that the voltage on its surface is 100

1) a conducting sphere is charged up such that the voltage on its surface is 100V (relative to infinity) If the sphere's radius were twice as large, but the charge on the sphere d…

1) a contractor builds boathouses in two basic models: theatlantic and the pacif

1) a contractor builds boathouses in two basic models: theatlantic and the pacific. each atlantic model requires $1000 feetof framing lumber, $3000 cubic feet of concrete, and $20…

1) a genetic experiment with peas resulted in one sample of offspring that consi

1) a genetic experiment with peas resulted in one sample of offspring that consisted of 430 green peas and 163 yellow peas. a. Construct a 95% confidence interval to estimate of t…

1) a hair 8 inches long. If the medulla is 60 % of the shaft and measures ~30 mi

1) a hair 8 inches long. If the medulla is 60 % of the shaft and measures ~30 microns, what is the approximate total volume of the hair in m ^3? 2) it is needed 2.0 L HNO3 for you…

1) a hair 8 inches long. If the medulla is 60 % of the shaft and measures ~30 mi

1) a hair 8 inches long. If the medulla is 60 % of the shaft and measures ~30 microns, what is the approximate total volume of the hair in m ^3? 2) it is needed 2.0 L HNO3 for you…

1) a heat-seeking particle has the property that at any point (x,y) in the plane

1) a heat-seeking particle has the property that at any point (x,y) in the plane it moves in the direction of maximum temperature increase. If the temperature at (x,y) is T(x,y) =…

1) a mutation occurs in which an AAA codon, which signifies lysine, into AGA whi

1) a mutation occurs in which an AAA codon, which signifies lysine, into AGA which signifies a chemically similar amino acid arginine. This is an example of a ____ mutation? a) co…

1) a normal force is always perpendicular to the surface and equal to the weight

1) a normal force is always perpendicular to the surface and equal to the weight of the object that is in contact with the surface 2) the coefficient of static friction is always …

1) a normal force is always perpendicular to the surface and equal to the weight

1) a normal force is always perpendicular to the surface and equal to the weight of the object that is in contact with the surface 2) the coefficient of static friction is always …

1) a nutcracker is a mechanical device that makes work easier by: a) decreasing

1) a nutcracker is a mechanical device that makes work easier by: a) decreasing the output force b) increasing the output force 2) a ramp is a mechanical device that makes work ea…

1) a nutritionist wants to determine how much time nationally people spend eatin

1) a nutritionist wants to determine how much time nationally people spend eating and drinking. Suppose for a random sample of 1018 people age 15 or older, the mean amount of time…

1) a password of length 7 is to be generated which contains only two of the lett

1) a password of length 7 is to be generated which contains only two of the letters from a-z , one letter repeated 3 times and the other letter repeated 4 times. how many such pas…

1) a piece of metal weighing 5.10 g at a temperature of 48.6 Cwas placed in a ca

1) a piece of metal weighing 5.10 g at a temperature of 48.6 Cwas placed in a calorimeter into 20.00 ml of water at 22.1 C, andthe final equilibrium temperature was found to be 28…

1) a projectile is launched at t=0 with initial speed with vi=11.2m/s at an angl

1) a projectile is launched at t=0 with initial speed with vi=11.2m/s at an angle = 32 degrees above the horizontal. (a) what arev x and vy at the projectile's highest point? (b) …

1) a small amount of the salt C6H5CO2Na (sodium benzoate) is dissolved in water.

1) a small amount of the salt C6H5CO2Na (sodium benzoate) is dissolved in water. the pH of the resutlng solution is 8.6. a) write a balanced equation for the rxn which occurs when…

1) a star follows a circular orbit around a supermassive black hole in the cente

1) a star follows a circular orbit around a supermassive black hole in the center of a galaxy at a distance of 1 light year with an orbital velocity of 3750 km/s. What is the mass…

1) a straight line is given by the path vector R(t) = (1+t)i hat + (3t) j hat +

1) a straight line is given by the path vector R(t) = (1+t)i hat + (3t) j hat + (1-t) k hat a. find a non-zero vector parallel to this line b. for what value of c and d will this …

1) a straight line is given by the path vector R(t) = (1+t)i hat + (3t) j hat +

1) a straight line is given by the path vector R(t) = (1+t)i hat + (3t) j hat + (1-t) k hat a. find a non-zero vector parallel to this line b. for what value of c and d will this …

1) a student who was in a hurry to complete this experiment didn\'t completely d

1) a student who was in a hurry to complete this experiment didn't completely dry the crystalline product before the final weighing. how would this error affect the calculated per…

1) a student who was in a hurry to complete this experiment didn\'t completely d

1) a student who was in a hurry to complete this experiment didn't completely dry the crystalline product before the final weighing. how would this error affect the calculated per…

1) a student who was in a hurry to complete this experiment didn\'t completely d

1) a student who was in a hurry to complete this experiment didn't completely dry the crystalline product before the final weighing. how would this error affect the calculated per…

1) a student who was in a hurry to complete this experiment didn\'t completely d

1) a student who was in a hurry to complete this experiment didn't completely dry the crystalline product before the final weighing. how would this error affect the calculated per…

1) a tractor of mass M1=2000 kg is pulling a trailer of mass M2=4000 kg. the whe

1) a tractor of mass M1=2000 kg is pulling a trailer of mass M2=4000 kg. the wheels of the trailer only are subject to friction with coefficient 0.2. if the tractor-trailer is acc…

1) a wind with velocity 45 miles per hour is blowing in the direction N 20 degre

1) a wind with velocity 45 miles per hour is blowing in the direction N 20 degrees W. An airplane that flies at 425 miles per hour in still air is supposed to fly straight North. …

1) a woman and her spouse both show the normal phenotype for pigmentation, but b

1) a woman and her spouse both show the normal phenotype for pigmentation, but both had one parent who was an albino. the woman had one albino parent and one normal pigmentation p…

1) a woman and her spouse both show the normal phenotype for pigmentation, but b

1) a woman and her spouse both show the normal phenotype for pigmentation, but both had one parent who was an albino. the woman had one albino parent and one normal pigmentation p…

1) a worksheet labeled ‘ Scatterplot ’containing a labeled (males and females in

1)a worksheet labeled ‘Scatterplot’containing a labeled (males and females in different colors) scatterplot similar to the one you created in the Learn by Doing on p. 51 of the OL…

1) a) A 83.0 kg fullback is running at 3.86 m/s to the east and is stopped in 0.

1) a) A 83.0 kg fullback is running at 3.86 m/s to the east and is stopped in 0.760 s by a head-on tackle by a tackler running due west. Calculate the original momentum of the ful…

1) a) A charge of +5.00 nC is placed at the origin, and another charge of -3.00

1) a) A charge of +5.00 nC is placed at the origin, and another charge of -3.00 nC is placed 2.5 cm west of origin, what is the electric potential at 3 cm east from origin? b) Rep…

1) a) A charge of +5.00 nC is placed at the origin, and another charge of -3.00

1) a) A charge of +5.00 nC is placed at the origin, and another charge of -3.00 nC is placed 2.5 cm west of origin, what is the electric potential at 3 cm east from origin? b) Rep…

1) a) Allophane is naturally occurring, Si and Al rich amorphous (no long-range

1) a) Allophane is naturally occurring, Si and Al rich amorphous (no long-range order) material that forms from the chemical weathering of feldspars. Based on the definition of a …

1) a) Are hybrids and gasoline complements or substitutes? b) Are sport-utility

1) a) Are hybrids and gasoline complements or substitutes? b) Are sport-utility vehicles and gasoline complements or substitutes?       Using the signs of the cross-price elastici…

1) a) Assume that you have two AISI 1045 cylindrical samples with two different

1) a) Assume that you have two AISI 1045 cylindrical samples with two different diameters: one 1 in. thick and the other 2 in. thick. You astenitize and quench both samples in wat…