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Suppose 2.00 atm of an ideal gas occupies a volume of 80 mL. What pressure will the gas have when the volume is expanded to 100 mL?
if a raindrop weighs 60. mg on average and 5.1 105 raindrops fall on a lawn every minute what mass in kg of rain falls
The first ionization energy of Ne is 2081 kJ/mol. The sodium ion Na+ is isoelectronic with Ne, but the ionization energy for Na+ is 4560 kJ/mol. Why is it harder to remove an electron from Na+ than from Ne if they are isoelectronic
5.30 ml of 18-nonadiene d0.74 gml allowed to react with 5.25 g of hydrogen bromide gas. two possible products can be
A volume of 60.0 mL of aqueous potassium hydroxide (KOH) was titrated against a standard solution of sulfuric acid (H2SO4)What was the molarity of the KOH solution
Calculate the amount of work in kilojoules (kj) needed to move an object that weighs 500 grams through a distance
Given the reaction: 2Al + 3H2SO4 -> 3H2 + Al2(SO4)3 what would be the total number of moles of H2SO4 needed to react completely with 5.0 moles of Al ?
A 12 oz can of Coke contains 46 mg of caffeine. One fluid ounce is equivalent to 29.57 mL (1 oz = 29.57 mL). What is the concentration of caffeine in Coke, in units of mg/mL
Two components have boiling points of 130 C and 150 C. Estimate the number of theoretical plates needed to separate these substances in a fractional distillation.
A 1.000g sample of red phosphorus powder was burned in air and reacted with oxygen gas to give 2.291g of phosphorus oxide. Calculate the empirical formula & molecular formula of phosphorus oxide given the molar mass is approximately 282 g/mol
Explain what is the average power energy per unit time in units of Watts associated with such a pulse. Define how many 1000.0 nm photons are emitted in such a pulse
Write the cell reaction and electrode half-reactions, and calculate the standard potential for each of the following cells: a) Pt|Fe3+(aq),Fe2+(aq)||Sn4+(aq),Sn2+(aq)|Pt
The element antimony has an atomic weight of 121.757 amu and only two naturally occuring isotopes. one isotope has an abundance of 57.3 % and an isotopic mass of 120.904 amu based on these data what is the mass of the other isotope.
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