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What is the number of bonding electron pairs on the central atom of SiH4? What is the number of nonbonding electron pairs on the central atom of SiH4? What is the Molecular Geometry of SiH4?
Florine is so reactive that it forms compound with material insert to other treatment when 0.448gm of plantinum is heated in florine, 0.71gm of dark red, volatile solid forms. What is emperical formula
Here are the solubilities of a particular solute at two different temperatures. Temperature (c) Solubility (g/100 g h2o) 20.0 42.0 30.0 86.0 Suppose that you have made a saturated solution of this solute using 47.0 g of water at 20.0 °C. How much ..
Draw a formula for the lowest molecular weight compound that contains C, H, and possibly O or N, is a chiral compound
If 1.87 {rm g} of acetic acid(rm CH_3CO_2H) reacts with 2.31 {rm g} of isopentyl alcohol(rm C_5H_{12}O) to give 2.96 {rm g} of isopentyl acetate(rm C_7H_{14}O_2), what is the percent yield of the reaction?
what is steam distillation and why is it a preferred technique to purify high boiling liquids that are water-insoluble
the sandals in disintegrations per minute per gram? Assume the original activity was 15.3 disintegrations per minute per gram.
Draw the product of the following reaction between a ketone and an alcohol. H3C--CO--CH3 + HO--CH2--CH3 ---H+--> how would you classify the product of the reaction? -alcohol -ketone -hemiacetal -acetal
When you have two primary or two secondary alcohols on the same molecule, will both undergo oxidation or just one?
An equilibrium mixture at 225 degrees contains 0.14M NH3 and0.19 M H2 for the reaction of 3H2+N2=2. If the Kc at this temp is 1.0*102, what is the equilibrium concentration of N2
Electrons appear on the right side of a reduction half reaction. A reductant is an reducing agent, which becomes oxidized during the course of a redox reaction.
If 275 g of liquid water at 100.°C and 475 g of water at 30.0°C are mixed in an insulated container, what is the final temperature?
A Breathalyzer instrument contains two ampules, each of which contains 0.75 mg K2Cr2O7 dissolved in 3 mL of 9 mol L^-1 H2SO4(aq). One of the ampules is used as reference. When a person exhales into the tube of the Breathalyzer, the breath is direc..
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