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There are approximately 2.60x10^13 red blood cells with atotal of 2.90g of iron. On the average, how many iron atoms are present in each red blood cell? (molar mass (Fe)= 55.85g
How many neutrons and protons are contained in the nucleus of this isotope?
The rate law is : Rate = k [ I-]^a [ BrO3 -]^b [H+]^c Reaction time in run number 1 31 Reaction time in run number 2 31 Reaction time in run number 3 15 Reaction time in run number 4 15 Calculate the following The k in the rate law The activation ..
A student mixes 50 ml of 1.00M H2SO4 react with 100. ml (1 x 10^2 ml) of 1.00M NaOH in a calorimeter. The temperature of both solutions initially at 22.85 deg Celsius changes to 28.86 deg Celsius.
How many moles of KHP were weighed out? How many moles of NaOH were required to neutralize the KHP that was weighed out?
chlorine triflouride gas at 708 mmHg and 50 degrees celcius. what is the mass (in g) of the sample?
To identify a diatomic gas (x2), a researcher carried out the following experiment: She weighed an empty 4.8- bulb, then filled it with the gas at 1.40atm and 20.0 degC and weighed it again. The difference in mass was 7.9g . Identify the gas. Expr..
HCOOH and HCOONa How many milliliters of HCOOH and HCOONa would you use to make approximately a liter of the buffer?
What combination of properties is responsible for the selection of trinitrotoluene as a military explosive?
A sample of oxygen gas has a volume of 150 mL when its pressure is 0.947 atm. What will the volume of the gas be at a pressure if 0.987 atm if the temputure remains constant
The bitter-tasting compound quinine is a component of tonic water and is used as a protection against malaria. It contains only C, H, N and O. When a sample of mass 0.487 g was burned, 1.321 g of carbon dioxide, 0.325 g of water, and 0.0421 g of n..
calculate the empirical and molecular formula, respectively. (Note: When entering the answer do not worry about subcripting the numbers
I need help writing the balanced formula equation and the net ionic equation for the reaction of sodium hydroxide with hydrocholoric acid.
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