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Calculate the linear momentum of a pickup truck that has a mass of 1000 kg and is traveling eastward at 20 m/s. A small car with a mass of 900 kg travels northward at 30 m/s. Does the car have more or less momentum than the truck, and how much more or less? (Is direction a factor in this exercise?)
In a laboratory 6.80g of Sr(NO3)2 is dissolved in enough water to form 0.450L of solution. A 0.120L sample is withdrawn from this stock solution as well as titrated with a 0.0300M solution of Na2CrO4.
Methanol (CH3OH) reacts with oxygen to produce carbon dioxide and water. Explain how many grams of oxygen will be needed to react completely with 200 grams of CH3OH. Explain what mass of water will be produced during the reaction
How many moles of H2SO4 must be present to react completely with the NaOH delivered from the buret.
The Ksp of cadmium hydroxide, Cd(OH)2, is 7.20 × 10-15. Calculate the molar solubility of this compound.
For each of the following unbalanced equations, indicate how many moles of the second reactant would be required to react exactly with 0.275 mol of the first reactant. Show all work below.
write the sequence of 5-oligonucleotide primers you will design to replicate the DNA sequence in question 1a by the polymerase chain reaction (PCR). Indicate the 5' and 3' ends of each primer. this is the DNA sequence
what are the industrial uses of iodine
A 37.7mL volume of an unknown gas is collected over water at19 degrees C and a total pressure of 770torr. The mass of the gas is 68.6 mg. Define what is the pressure of the gas
three mole of aluminum metal react with a mole of solid iron(iii) oxide to produce two moles iron metal and a mole of solid aluminum oxide
How many grams of FeSO4*(NH4)2SO4*6H2O (MW 392.14) must be dissolved and diluted to 250.0 mL to prepare an (aq) solution of density 1.00g/mL that is 1.00 ppm Fe2+ by wt
Problem- Cholesterol in blood is measured in milligrams of cholesterol per deciliter of blood. If the average adult has 6.0 liters of blood, how many grams of cholesterol would be in the blood of an average adult with a cholesterol reading of 185 ..
(a) how many protein molecules do you find in the average eukaryotic cell and prokaryotic cell? (b). What is the ratio of protein found within a human heart compared to the prokaryotic cells inhabiting human intestines?
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