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For the zeroth-order reaction: A ? products, what will happen to the rate of reaction if the concentration of A is doubled? A) The rate will be halved B) The rate will be doubled C) The rate will be quadrupled D) The rate will remain the same
a sample of methane of mass 4.5 g (4.5g(1mol/16.04g)=.2804mol) occupies 12.7 L at 310K. a) Calculate work done when the gas expands isothermally (delta T=0) against a constant external.
describe an experiment that you could perform in lab that would provide the data so you could calculate the Ka value for sulfamic acid, HSO3NH2.
What is the silver ion concentration in a solution prepared by mixing 419 mL of 0.391 M silver nitrate with 457 mL of 0.417 M sodium carbonate. The Ksp of silver carbonate is 8.1 × 10-12
A voltaic cell consists of a Mn/Mn2+ electrode (E°= -1.18 V) and a Fe/Fe2+ electrode (E°= -0.44 V). Calculate [Fe2+] if [Mn2+] = 0.050 M and Ecell = 0.78 V at 25°C.
the rate constant for the second order -reaction is 2NOBr(g)------>2NO(g)+Br2(g) is 48 L/mol*min at a certian temperture. How long will it take for 90.0% of a .0200M solution of NOBr to decompose.
What is the normality of sulfuric acid solution which contains 6.64 g of H2SO4 in 837 mL of solution provided that the reaction involved
Why is benzoic acid extracted into the aqueous phase when using sodium bicarbonate, whereas 2-naphthol required the use of sodium hydroxide
1. How many CO2 molecules are needed to produce 1 glucose molecule (in photosynthesis)? 2. How many moles of oxygen atoms are in 1 mole of calcium phosphate?
The heat of solution of ammonium chloride (NH4Cl(s)) in water is +14.7 kJ/mol. Calculate the mass (in g) of NH4Cl(s) required to change the temperature of (1.2550x10^2) ml of water from (2.440x10^1) °C to (5.30x10^0) °C.
For many years drinking water has been cooled in hot climates by evaporating it from the surfaces of canvas bags or porous clay pots. How many grams of water can be cooled from 40.°C to 19°C
An energy maximum in a reaction-energy diagram would be labeled as which of the following?
assuming no energy is transferred to or from the surroundings, calculate the final temperature of the water after all the ice melts heat capacity(s) 37.7 jmolk
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