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If a process is carried out at constant pressure P and the volume V of the system decreases, then is delta V negative or positive and is the work w negative, positive, or zero?
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What is the molarity, to the hundredths place, of 5.0 g HPO3 in 300. mL of solution?
What is the chemical name for S6O and what is the chemical name for S7O2?
A 479 mL sample of 0.9833 M HCl is mixed with 485 mL sample of NaOH (which has a pH of 13.48). What is the pH of the resulting solution?
H 2 (g) + I 2 (g) = 2HI Temperature = 731 K If 1.60 mol H 2 and 4.20 mol I 2 areplaced in a 1.08 L vessel What is the equilibrium concentration of H 2 in the gaseous mixture? The equilibrium constant is K = 49.7
Suppose 1.7 g of zinc is treated with 6.2 g of pure hydrogen chloride. What is the maximum mass (in g) of hydrogen gas that can be produced?
How much will the temperature change when 3.0 g of tooth enamel (specific heat = 0.18 cal/g C) absorbs 0.80 cal of heat energy?
Why do the instructions call for using a saturated solution of NaOH rather than one at lower concentration? Why can we ignored in the calculation of the concentration of NaOH?
A person's blood alcohol (C 2 H 5 OH) level can be determined by titrating a sample of blood plasma with a potassium dichromate solution. The balanced equation is 16 H + (aq) + 2 Cr 2 O 7 2- (aq) + C 2 H 5 OH (aq) 4 ...
1. Potassium hydrogen phthalate is a solid, monoprotic acid frequently used in the laboratory as a primary standard. It has the unwieldy formula of KHC 8 H 4 O 4 . This is often written in shorthand notation as KHP. If ...
When the concentration of A in areaction was changed from 1.20 M to 0.600M, the half -lifeincreased from 3-00min to 6.0 min at 250C. Calculate theorder of reaction and the rate constant.
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