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Problem- NH3 is a weak base ( kb=1.8 x10-5) and so the salt NH4CL acts as a weak acid. What is the Ph of solution that is 0.015M in NH4CL
I am not able to get the correct answer please help me
calculate the specific heat of a metallic element if 478 j of energy are needed to raise the temp. of a 82.73 g sample
What is the mass in grams of 4.12 moles of CaCO3. How many moles are in 75.0g of CCl4
How much 5.90 M NaOh must be added to 570.0 mL of a buffer that is 0.0210 M acetic acid and 0.0230 M sodium acetate to raise the pH to 5.75
Acetone, a common laboratory solvent, has DeltaHvap = 29.1kJ/mol and a normal boiling point of 56.2 C. At what temperature (in C) does acetone have P_vap = 117 mm Hg
Gaseous carbonyl sulfide reacts according to the balanced equation. If a total of 3370 kJ of heat is generated in the reaction as written, how many moles of SO2 are produced?
Elemental analysis of the solid suggested the composition C9H10O3. The solid melted at 117 °C and gave the following nmr spectra and the ir spectrum. What is this material and why and how did it come to be in both of these sources?
Calculate the molality of commercial HCl solution which is 12.1Molarity, and has a density of 1.19g/mL, and is 37.2wt.%HCl.
Why is it possible to add up different balanced chemical equations to form a particular chemical equation and calculate its Kc from multiplying the Kc values of the different equations?
insulin is a protein that is used by the body to regulate both carbohydrate and fat metabolism. a bottle contains 475
A sample of river water has a bicarbonate ion concentration of 1.0 × 10-4M. Calculate the total alkalinity for the sample in mmol/L.
Styrene, phenylethene, is treated with H3PO4, an acid whose conjugate base is a poor nucleophile.
An industrial flavor-enhancing process requires that a butter-flavored food be heated briefly at 200 degrees Celsius. Explain how long can the food be heated at this temperature and retain 68% of its butter flavor?
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