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which reactant is in excess from the reaction of 350 g of hydrogen with 276 g of oxygen to form
50 kg of hydrogen is reacted with 31 kg of oxygen the experiment yields 28 kg of water calculate the percent yield of
a compound contains the following 841 c and 159 h the molecular mass of the compound is 120 gmol what is the empirical
1 a single card is drawn from a standard deck of cards find the probability if the given information is known about
a solution of magnesium chloride is mixed with a solution of sodium hydroxide predict any precipitates that are
what is the theoretical yield of acetic acid when 225 g of methanol reacts with 320 g of carbon monoxide in the
two particles of mass m1 26 kg and mass m2 48 kg that are free to move on a horizontal track are initially held at
calculate the empirical formula for the following compound potassium tartrate found in baking powder 208 k 27 h 255 c
1 how many ways are there to choose 12 sushi plates if there are 5 varieties of sushi plates including conger eel and
a bullet of mass 13 g is fired with an initial speed of 289 ms into a wooden block that is initially at rest the bullet
an unknown compound has a molar mass of 11810 gmol given the following mass percent composition 407 c 513 h and 542 o
a bullet of mass m 28 g is fired into a wooden block of mass m 41 kg as shown in the figure below the block is
how many moles of oxygen are needed to produce 6 mol of fe2o3 in the following unbalanced equation fe o3 --gt
how many molecules of oxygen are produced from the decomposition of 875 g of hydrogen peroxide in the following
two objects are moving along the x axis with velocities of 37 ms object 1 and -15 ms object 2a if the center of mass
1 what factors are involved in determining the solubility of an ionic salt2 a solution of barium hydroxide baoh2
a military gun is mounted on a railroad car m 1400 kg as shown in the figure below there is no frictional force on the
a pure gold ring and pure silver ring have a total mass of 157 g the two rings are heated to 653 degree celcius and
two cars of equal mass are traveling as shown in the figure below just before undergoing a collision before the
consider the collision between two hockey pucks in the figure below they do not stick together their speeds before the
a particular balloon can be stretched to a maximum surface area of 1257 cm2 the balloon is filled with 32l of helium
a positron moving in the positive x-direction at 2 108 ms collides with an electron at rest the positron and electron
a what is the osmotic pressure of a solution formed by dissolving 440 mg of aspirin c9h804 in 0357 l of water at 25
a rubber ball is dropped and bounces vertically from a horizontal concrete floor if the ball has a speed of 37 ms just
a circuit consists of a resistor in series with an inductor and an ac generator that supplies an rms voltage of 115 v