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the hydrolysis of sucrose to fructose is first order in sucrose with a half-life of 23e03 s at some temperature1what
how do we equilibrate a pipette with the solution we are measuring why should we equilibrate it with the soultion we
a stock solution has a concentration of 50 what is the final concentration if we mix 1 part of the solution to 4 parts
an organic compound contains 667 c 112 h and 221 o by mass the compound boils at 796c 100c and 0970 atm the vapor has a
dry air is 78 nitrogen gas 21 oxygen gas and 09 argon gas these gases can be separated by distillation after the air is
what spectral features including carbon spectra ir spectra proton spectra and mass spectra differentiate benzoic acid
what volume of hydrogen gas at stp is required for the complete reaction of 500 g of nitrogen in the following reaction
a mixture containing 0432 mol heg 0312 mol neg and 0721 mol arg is confined in a 800 l vessel at 25 degc and a total
calculate how much acetylene c2h2 can be produced from 358g of h2o and an excess of cac2 if the percent yield for this
when limestone calcium carbonate is heated it decomposes to form lime calcium oxide and carbon dioxidea write a
manganese makes up 131--4 percent by mass of the elements found in the healthy male body of a certain mammal if 011 g
for some iron-carbon alloy the mass fractions of total ferrite and total cementite are 055 and 046 respectively a on
case studya petroleum refining facility located in a suburban but relatively populated area converts crude oil derived
assuming the surface water receiving the waste stream is somewhat dynamic briefly summarize the zones or phases of
the refinery operations and processes also directly and indirectly generate liquid mixtures of water and petroleum oils
the concentrations of al and k in a sample of riverwater are 0050 mgkg and 13 mgkg respectively express the
at what radius in the h atom does the radial distribution function of the ground state have a 50 percent b 75 percent
at what radius does the probability of finding an electron at a point in the h atom fall to 50 per cent of its maximum
use data in appendix c to calculate delta h delta s and delta g at 25 degrees c for each of the following reactions in
using appendix c calculate the delta s values for the following reactions in each case explain the sign of delta sa
using appendix c compare entropies at 25 degrees c for the following pairs of substances for each pair explain the
the element cesium cs freezes at 284 degrees c and its molar enthalpy heat of fusion is trianglehfus 209kjmola when
in cooking over an open flame a yellow flame is often observed when some food is spilled into the flame what is most
calculate the ph of each of the following buffered solutionsa 010m acetic acid025m sodium acetateb 025m acetic acid010m
the experimental conditions are a modified perkins reaction benzaldehyde sodium acetate acetic anhydride the product