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Question- Write a balanced chemical equation including phase labels for the reaction between aqueous copper(II) nitrate and aqueous sodium hydroxide
Rework your solution from the beginning and check each step carefully.
The total concentration of dissolved carbonates in the lake is 0.0045 M. Find out the molar concentration of carbonate (CO3-2) in the lake if Ka1= 4.3x10-7 and Ka2 = 5.6x10-11.
write equations for the preparation of the grignard reagent fromalkyl halide and for the reaction between the grignard
The column is run with a solvent system based on hexanes, but which becomes more polar with the addition of more and more dichloromethane over time. Predict the elution order.
How many grams of Sodium Preoxide are needed to produce 3.20 grams of oxygen. How many grams of phosphoric acid are needed to produce 3.75 grams of calcium phosphate
Calculate the pH of the buffer system if 2.00 moles of H3PO4 and 1.00 mole of NaH2PO4 are present in 1.00L of a solution
which of these solutions has the lowest freezing point?a. 0.25 m naclb. 0.5 m naclc. 1.5 m nacld. 2.0 m
0.50g of Cu 2+ is dissolved in 4.0ml of 16 M HNO3. how much 3.0 M NaOH must be added to precipitate the Cu 2+ as Cu(OH)2
A 1.4639g sample of limestone was analyzed for Fe, Ca, and Mg. The iron was determined as Fe2O3, yielding 0.0357g. Calcium was isolated as CaSO4, yielding a precipitate of 1.4058g, and Mg was isolated as 0.0672g of Mg2P2O7.
We were asked to determine the activation energy. That the Arrhenius equation is LnK= LnA-Ea/RT. nevertheless he didn't give us the rate constant "K" instead he gave us the rate. Explain how determine activation energy using the rate.
A solution is prepared by adding 3.24 grams of an unknown compound to 217 g of cyclohexane (C6H12). This solution freezes at 3.8C. Calculate the molar mass of the compound.
Write the standard half-cell reduction reaction equation for reactive species in the beaker. Determine the cell potential(Ecell) at the moment of mixing.
a chemist burns 160 g of aluminum in oxygen to produce aluminum oxide. she produces 260 g of aluminum oxide. write a
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