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Volume can be measured by displacement of a liquid. An object is an irregular shape and has a mass of 112.14 g. You put this object into a 100 mL graduated cylinder containing 35.5 mL of water, and the water level rises to 74.0 mL. What is the density of the object?
How to Separate and isolate following compounds: 50% ethyl 4-aminobenzoate, 40% of benzoin, and, 10% 1-4 dibromobenzene.
the ligand hydrotris 1-pyrazolylborate is commonly used in biomimetic complexes. draw out the ligand. why is this a
(a) What is the pH of this buffer (b) What is the pH of the buffer after the addition of 0.48 mol of NaOH. (assume no volume change) (c) What is the pH of the original buffer after the addition of 0.23 mol of HI. (assume no volume change)
Combustion analysis of 2.400 g of an unknown compound containing carbon, hydrogen, and oxygen produced 4.171 g of CO2 and 2.268 g of H2O. What is the empirical formula of the compound
Draw all possible stereoisomers for each of the following compounds. If no stereoisomers are possible, only draw one structure. (All hydrogen atoms are implied. If a chiral carbon atom is attached to a hydrogen atom, you should not show the hydrog..
A soil analysis was done for the exchangeable cations in the soil and the results were as follows:Ca = 1.8 g/kg (atomic wt. Calcium is 40 g/mol)Mg = 3.25 cmolK = 3 cmolNa = 0.230 g/kg (atomic wt. of Na is 23 g/mol)H = 9 cmolAl= 0.66 cmol.
protein a has a binding site for glucose with a kd of 10-5m.protein b has a binding site for glucose with a kd of 10-7
1.how many moles of oxygen react when 0.662 mol of methanol ch3oh are combusted in oxygen to produce carbon monoxide
Define how many grams of the excess reactant are left over according to the reaction below given that you begin with 10.0 g of Al and 19.0 grams of O2
The pKa of one of the hydrogens that is attached to one of the nitrogens of the purine guanine is 9.7. If guanine is in a solution that has a pH of 10.2, then what is the net charge of the molecule at this pH. Enter your answer as a decimal to two..
Describe the process of obrital hybridization as applied to carbon. You must include information on obritals used and produced
The strength of a bottle of vinegar was determined by adding potassium carbonate to a 20 ml sample of vinegar until bubbling ceased. The amount potassium carbonate added at the point the bubbling ceased was 1.134 grams. What is the concentration o..
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