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How many moles of ammonia will be formed from 6.83 mol of hydrazine
What is the molarity of 175 mL of a solution containing 2.18 g of Na2SO4·10H2O? 0.00377 M B. 0.644 M C. 0.00878 M D. 0.00118 M E. 0.0387 M
An enzyme (MW = 20,250) catalyzes the hydrolysis of a newly discovered substrate. The kcat was found to be 2000 sec-1 and Km = 0.05 M. Using this information answer the following questions.
What is the gauge pressure of the gas in this mercury manometer
Calculate the mass (g) of pure Na3AsO4 (s) and volume (mL) of 1.50 M HCl that are required to make 100.0 mL of a buffer solution at a pH of 6.80 and an H2AsO4-(aq) concentration of 0.100 M
The molar heat capacities of iron and gold are 25.19 J/(mol x degrees celsius) and 25.41 J/(mol x degrees celsius), respectively. What is the final temperature of the water and pieces of metal
You are given a 1 M MgSO4-7 H2O solution and a 0.5 M EDTA solution. Calculate how to make a 100 mL solution containing 50 mM MgSO4 and 10 mM EDTA. List the amounts of all components including water.
Suppose that the microwave radiation has a wavelength of 12.7 cm. How many photons are required to heat 200. mL of coffee from 25°C to 62°C?
based on the ionization energies of the alkali metals which alkalimetal would you expect to undergo the least
A 5 kg aluminum block sits in your lab, which is at 21 C. You wish to increase the temperature of the block to 50 C. How much heat in [J] must be supplied
A certain carbon-hydrogen compound contains 84.1% C by mass and the remainder is hydrogen. What is the empirical formula of the compound
Calculate the amount of 10% acetic acid you will need to add to 100.0 ml of your milk in order to bring the final acidity to 1.00% acetic acid.
New ads for the toyota Prius claim that it has saved over 1 billion gallons (2.8 x 10^9kg) of gasoline. Assuming that gasoline is 100% octane (C8H18) how much has the prius reduced emissions of carbon dioxide.
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