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Explain how much energy in kilojoules is needed to heat 5.00g of ice from -10.0 degrees Celsius to 30.0 degrees Celsius? The heat of the fusion of water is 6.01 kJ/mol, as well as the molar heat capacity is 36.6 j/(k . mol) for ice as well as 75.3 j/(k . mol) for liquid water.
you want a solution that will buffer the addition of either 10 micro moles of acid or 10 micro moles of base. total buffer concentration is equal to the concentration of the acid plus the concentration of salt in the acid. which of the following b..
Synthesize 2-butanol from an aldehyde and a grignard reagent.Show two possible routes to the product.
Ribonuclease S has 8 cysteines, which make 4 disulfide bridges total. How many ways can 8 cysteines form disulfide bridges
at 350 k kc 0.142 for the reaction 2brclg br2g cl2g an equilibrium mixture at this temperature contains equal
What is the equilibrium composition of a reaction mixture if we start with 0.500 mol each of H2 and I2 in a 1.0-L vessel. The reaction is H2(g) + I2(g) 2HI (g) Kc is 50.5 at 448 degree Celsius
If the vinegar were measured volumetrically (e.g., a pipet), what additional piece of data would be needed to complete the calculations for the experiment
If you have a sample of a radioactive substance, and you measure 25mCi of activity on the day it arrives. It sits around for 11,460 years, and you remeasure the activity it is only 6.25mCi. What is the half life of the compound
what is the pH of the solution which results from mixing 25 ml of .3 M HF and 25 ml of .3 M NaOH at 25 degrees C
How much heat is required to convert 47 g of ethanol at 36 degrees Celsius to vapor phase at 78 degrees Celsius?
If 5.00 x 10^3 kg each of NH3, O2, and CH4 are reacted, what mass of HCN and of H2O will be produced, assuming 100% yield?
An object is coated with a layer of chromium that is 0.015 cm thick. If the object has a surface area of 15.3 cm squared, how many atoms of chromium are used in the coating. The density of chromium is 7.19 g/cm cubed.
A 0.08468 g sample of gas occupies 10.0-mL at 291.0 K and 1.10 atm. Upon further analysis, the compound is found to be 13.068% C and 86.932% Br. What is the molecular formula of the compound
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