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This was a question on my Mastering Chemistry homework. It's from Tro's Chapter 15. Q: Determine the pH of the following two-component solution: 0.260 M NH4NO3 and 0.102 M HCN
Find the number of moles of water that can be formed if you have 218 of hydrogen gas and 104 of oxygen gas. Express your answer with the appropriate units.
The total phosphate concentration is 0.001 M. No other weak acids or bases are present. How many millimeters of 0.5 M H2SO4 are needed to decrease the pH of 1 liter of this water to 6.0
a highly radioactive element is determined to contain 0.3256 mol of the element. What is the element?
MnO4-(aq) I-(aq)?Mn2 (aq) I2(s), the number of electrons gained in cathode is ( )
Assume three significant figures and an average wavelength of 504 nm for solar radiation. A green leaf has a surface area of 2.00 cm^2
Nitric acid is a strong acid, but nitrous acid is a weak acid. Why? A. there are more electronegative oxygen atoms bonded to the N atom
at 30 km above the earths surface (roughly in the middle of the statosphere) the pressure is roughly 0.013 atm and the gas density is 3.74 x 10^23 molecules/m^3 assuming N2 is represetative of the stratosphere using the collisional diameter inform..
How many grams of solid magnesium nitrate should be added to 5.0 g of solid sodium nitrate in a 500-mL volumetric flask in order to produce an aqueous 0.25 M solution of NO3
What is the concentration of iron in the steel sample? Express your answer as grams of Fe per grams of steel (g Fe2 / g steel).
calculate the number of excess reagent units remaining when 100 C4H10 molecules and 611 O2 molecules react?
What volume will 500 mL of gas at 20°C and a pressure of 420 mm Hg occupy if the temperature is reduced to -80°C and the pressure increased to 650 mmHg?
water to form dissolved boric acid, H3BO3, and hydrogen sulfide gas. What is the balanced Equation?
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