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How many moles of carbon dioxide can be produced if one tablet containing 0.0119 mol Sodium Bicarbonate is dissolved NaHCO_3 + H_3C_6H_5O_7 3 CO_2 + 3 H_2O + Na_3C_6H_5O_7
Explain what happens to the atomic number of a nucleus when positron emission occurs
A flask contains 0.500molmol of liquid bromine, Br2\rm Br_2. Determine the number of bromine molecules present in the flask.
A mixture of carbon and sulfur has a mass of 9.0g . Complete combustion with excess O2 gives 23.0g of a mixture of CO2and SO2. Find the mass of sulfur in the original mixture.
What is the half-life in minutes of a compound if 75.0 percent of a given sample decomposes in 85.0 minutes? Assume first order kinetics
How many grams of solute are needed to prepare the following solutions? 1. 135.0mL of 22 % (w/v) glucose (C6H12O6) 2. 60mL of 4.6 % (w/v) (KCl)
What is the pH of the buffer after the addition of 0.02 mol of NaOH? C)What is the pH of the buffer after the addition of 0.02 mol of HI? Express Numerically
It is found that 4.68e-06 g of Nd2(CO3)3 dissolves per 100 mL of aqueous solution at 25 oC. Calculate the solubility-product constant for Nd2(CO3)3.
The amino acid histidine has 3 pKa's at 1.8, 6.0 and 9.3. In a 0.01 M solution of histidine, what is the concentration of protonated carboxylic acid at pH 7.4. The primary amine. The side chain
Once ready, he put a bit of sand on top. He loaded about 1 gram of product that had been dissolved in 1 ml of ethyl acetate.
Combustion analysis of naphthalene, a hydrocarbon used in mothballs, produced 8.80 g CO2 and 1.44 g H2O. Calculate the empirical formula for naphthalene?
A 633 milliliter NaCl solution is diluted to a volume of 1.34 L and a concentration of 8.00M. What was the initial concentration C1
The Conversion of 2 pyruvate to 1 glucose by gluconeogenesis high energy phosphate bonds- a. Uses four. B. Uses six. C. Produce two D, produces one E, none of these.
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