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Explain what are the concentrations of acetic acid as well as acetate ion in 0.20M acetate buffer, pH 4.90? The pKa of acetate is 4.76.
acetylene gas c2h2 is produced by adding water to calcium carbide cac2.cac2 s 2 h2o l -----gt c2h2 g caoh2 aqhow many
a sample of a binary compound of boron and chlorine weighing 2.842 g occupies .153 L. this sample is decomposed to give 0.664 g solid boron and enough gaseous chlorine to occupy .688 L at the same temperature and pressure. determine the molecular ..
A compound is composed of only C and H. It contains 88.82% C by mass and has a molar mass of 54.09 g/mol. What is the correct molecular formula
suppose you are trying to determine the melting point of a compoundand the compound turns from white to brown before
When the equation above is balanced and all coefficients are reduced to their lowest whole-number terms, the coefficient for O2
Calculate the kinetic energy of the goose in joules if the goose has a mass of 16.8lb (pounds) and is flying at 10.3miles/h (miles per hour). ?
Completely neutralizes stomach acid (HCl, .10M) How much carbon dioxide is made at STP conditions (37C, 767 torr, 100% humid) by ingesting one 1.834 gram tablet
The water temperature before the reaction was 34.5°C, and after the reaction it had risen to 52.0°C. How many moles of water were formed?
a discuss the relationship between the production of nitrogen oxide species and the formation of acid rain and the role
A voltaic cell is constructed by immersing a strip of silver in a 1.0M AgNO3 solution and a strip of cadmiun metal in a 1.0M Cd(NO3)2 solution. The circuit is completed by a wire and a salt bridge in the usual way. Write the balanced half-reaction..
What are the two compounds that might be in the unknown? if weighing 0.4862g when heated barely changed droppping to 0,4855g, when the product was converted to a chlorid the mass went up to 0,5247
What effect on the value of Ca(OH)2's Ksp (6.5x10^-6 ) would sucking up some suspended calcium hydroxide solid have. Would the Ksp value be higher or lower than the normal value. Why
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