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What are the reactants in the equationK2CrO4(aq) +Pb(NO3)2(aq) -> KNO3(aq) +PbCrO4(aq)?What are the proper coefficients to balance the equation?
Calculate the Pickering series wavelength associated with the excited state ni = 8. B)What region of the electromagnetic spectrum does this transition fall in? gamma ,x-ray ,visible ,radio ,microwave ,infrared ,ultraviolet
A NiMH battery containing 4.10 g of NiO(OH)was 50% discharged when it was connected to a charger with an output of 1.30 A at 1.3V.
How many grams of sodium lactate (NaC3H5O3 ) should be added to 1.46 L of 0.150 M lactic acid (HC3H5 O3, Ka = 1.4 x 10-4) to form a buffer solution with pH = 4.12
What's the central atom for CH3Br, how many bonds are formed, is it polar or nonpolar, what's the direction of electronegativity
What is the [H3O+] and the pH of a buffer that consists of 0.21 M HNO2 and 0.57 M KNO2? (Ka of HNO2 = 7.1*10^-4) Define What is the component concentraion ratio
A medical patient has the ball section of his femur replaced with a titanium implant. Assuming the implant is a perfect sphere with a radius of 1.5 inches
The pH of a bicarbonate-carbonic acid buffer is 6.95. Calculate the ratio of the concentration of carbonic acid (H2CO3) to that of the bicarbonate ion (HCO3-)
How many days does it take to deposit the gold on one side of one earring if the current used is 0.024 A
how will the temperature of a gas sample change if its volume is decreased assuming everything else is the same and the
Balance the following acid base neutralization reaction. Identifythe acid and the number of equivalents per mole. Identify the baseand the number of equivalents per mole.
When 1.150 grams of an unknown nonelectrolyte dissolves in 10.0 grams of water, the solution freezes at -2.16°C. What is the molecular weight of the unknown compound? Kf for water = 1.86°C/m.
Could someone explain this competition and interaction? I know that chromatography is based on the attraction with the stationary phase or mobile phase
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