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Sucrose , which is commonly known as table sugar, reacts in dilute acid solutions to form two simpler sugars, glucose and fructose, both of which have the formula C6H12O6 At 23C and in 0.5M HCL , the following data were obtained for the disappearance of sucrose: Time(min C2H12O11 (M) 0 0.316 39 0.274 80 0.238 140 0.190 210 0.146 What is the value of the rate constant?
Hydrogen was cooled from 150 c to 50 c. It's new volume is 75 ml. What was the original volume?
Determine how many kgs of Ca are there in a 205-pound man If 1.4 percent of the mass of a human body is calcium(Ca)?
A substance, A2B, has the composition by mass of 60% A and 40% B. What is the composition of AB2 by mass?
The reaction: 2 HI → H2 + I2, is second order and the rate constant at 800 K is 9.70 × 10-2 M-1 s-1. How long will it take for 8.00 × 10-2 mol/L of HI to decrease to one-fourth of its initial concentration.
Household vinegar is aqueous 5.00% acetic and CHC2H3O2 SOLUTION(by mass), if the density is 1,01g/ml calculate the mole fraction, molarity and molality.
A 100.0-mL buffer solution is 0.175M in HCIO and 0.150M in NaCIO .What is the pH after addition of 150.0mL of HBr?
a particle moving 30,816 km/hr has a wavelength of 725 nm. What is the mass of the particle?
What is the pH of the solution when 50 grams of Ca(OH)2 was added to 1 liter of water? Ksp of Ca(OH)2 = 6.5 x 10^-6
What volume of ammonia could be made from the reaction of 2.5 liters of nitrogen (N2) and 8.5 liters of hydrogen (H2) at STP?
If a bottle of nail polish remover contains 153 g of acetone, how much heat would be released by its complete combustion?
In a flame test in the lab, the compound Barium Chloride and Barium nitrate have ions, what are the cations and anions for both.
The men's world record for swimming 1500.0 m in a long course pool (as of 2007) is 14 min 34.56 s. At this rate, how many seconds would it take to swim 0.800 miles.
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