What is the molar mass of sucrose
When 12.1g of the sugar sucrose (a non-electrolyte) are dissolved in exactly 800g of water, the solution has a freezing point of -0.082 degrees Celsius. what is the molar mass of sucrose? Kf of water is 1.86 degrees Celsius/m.
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Into an evacuated 30L vessel is placed 0.1mol of n-butane dissolved in 0.9mol of n-hexane. if the vessel and its contents are kept at 298K, what is the pressure and the vapor and liquid compositions when equilibrium is achieved?
You are swinging your younger sister in a horizontal circle of radius 0.65 m. Her mass is 21 kg and you arrange it so she makes one revolution every 1.5 s. (a) What is the magnitude and direction of the force that must be exerted by you on her? (M
A retailer is looking to evaluate its customer service. Management has determined that if the retailer wants to stay competitive, then it will have to have at least an 87% satisfaction rate among its customers. Management will take corrective acti
Take Poissons ratio to be .291 and Young's modulus to be 30.7 x 10^6 psi. What are the dimensions of the elastically deformed iron? What is the volume change due to the applied stress?
If the proton proton chain is the only nuclear reaction that happens in a star, what is the total number of Hydrogen nuclei in the core of this star? How much energy is available in each Hydrogen nucleus from nuclear fusion through the proton prot
Determine and interpret the quartiles for carapace length of the adult male G. mollicoma. Obtain and interpret the 95th percentile for carapace length of the adult male G. mollicoma.
A chair of weight 140 N lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of F= 44.0 N directed at an angle of 39.0 degrees below the horizontal and the chair slides along the floor. Using Newton's law
In a study it was found that the average age of cable tv shoppers was 48 years. Suppose you want to test the null hypothesis, H0: u=48, using a sample of n = 50 cable tv shoppers.
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