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1. The velocity of the chemical reaction doubles every 10 °C rise of temperature is raised by 50°C, the velocity of the reaction increases to about
32 times20 times16 times50 times
2. The rate of a certain biochemical reaction in human body is hundred times faster than when carried out in laboratory. This implies that:
Ea of reaction is 2RTEa for the reaction in the body is less than Ea for the reaction in laboratoryEa of reaction is zeroEa can be determined iftemperature is given
3. 20 ml of HCI solution requires 19.85 ml of O.Q1 M NaOH solution for complete neutralization. The molarity ofHCI solution is. [MP PMT 1999]
0.00990.990.0999.9
4. The correct order of C-X bond polarity is
CH3Br > CH3Cl > CH3I CH3Cl > CH3Br > CH3ICH3I > CH3Br > CH3Cl CH3Cl > CH3I > CH3Br 5. How many grams of NaOH will be required to neutralize 12.2 grams of benzoic acid. [MP PMT 1999]
40 gms16 gms4 gms12.2 gms
the exhaled air contains 6.2% H2O and 15.3% O2 by volume. How many moles of H2O are expelled from the body each minute? How many moles of O2 are absorbed by the body each minute?
To find the value of the equilibrium constant at each temperature you must first find the value of G0 at each temperature by using the equation G0 = H0 - TS0 For this reaction the values are H0 = +88.3 kJ/mol and S0= 151.3 J/mol*K
Allicin is the compound responsible for the characteristic smell of garlic. An analysis of the compound gives the following percent composition by mass: C: 44.4%; H: 6.21%; S:39.5%; O: 9.86%. Explain what is its empirical formula
Use bond enthalpies to estimate the heat produced when 2.333 mL nitrogen trihydride reacts with excess oxygen to form nitrogen dioxide and dihydrogen monoxide. The density of nitrogen trihydride is 0.73 g/mL
What is the concentration of a solution that has 2.79 g of Co(NO3)2 dissolved into enough water to give a total volume 125 mL
In two-photon ionization spectroscopy, the combined energy of two different photons is used to remove an electron from an atom or molecule. In such an experiment, a potassium atom in the gas phase is ionized by two different lasers, one of which h..
How much heat is required to melt 15 grams of ice at 0C? How much heat is released when 100 grams of steam condenses at 100C? If a system of ice and water has a mass of 12 grams
We have a nuts, bolts, and indirect measurement lab coming up. We'll get a bag of nuts/bolts and I need 2-3 methods on estimating the mass of a bolt without opening the bag. Thanks.
What is the molarity of a solution prepared by mixing 300 mL of a 0.250 M solution of H2SO4 with 700 mL of a 6.00 M solution of H2SO4?
1. when iodine i2 dissolves in water whattype of intermolecular forces exist between the i2 and water?2. when cacl2
Determine the theoretical yield and percent yield if 21.8g of K2CO3 is produced by reacting 27.9g KO2 with 29.0L of CO2 (one mole of CO2 occupies 22.4L). The GFW (KO2)= 71.10 , GFW (K2CO3)= 138.21 , GMW (CO2)= 44.01
State a chemical equation for the synthesis of ethyl 2-methylpropanoate. Utilize structural formulas must include all details such as ch3, ch2, etc for each organic compound in your equation.
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