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If a student determines that the empirical formula for a compound is HO, which molecular formula is not possible based on these info alone?a. H3O3b. H2O2c. H2Od. HO
Table salt and sugar are accidentally mixed A 4.90 g sample is burned and 2.20-g of CO2 is produced What is the mass percentage of salt in the mixture?
The specific heat of iron metal is 0.450 J/g-K. How many J of heat are necessary to raise the temperature of a 1.05-kg block of iron from 25.0 Celcius to 88.5 Celcius
A reagent bottle is labeled 0.388M Na2SO4. assuming no volume change, how many grams of Na2SO4 (MM=142.05g/mol) needs to be added to 1.50L solution to obtain 0.750M solution of Na2SO4?
Determine what is the total mass of glucose in 5.10L of blood If a person has a glucos level of 108 mg.100mL, ? express your answer in grams?
Consider a piece of gold jewelry that weighs 9.95 and has a volume of 0.695 . The jewelry contains only gold and silver, which have densities of 19.3 and 10.5 , respectively. If the total volume of the jewelry is the sum of the volumes of the gold
it was found that at 344 seconds the concentration of dinitrogen pentoxide was 0.696 mol/L and at 708.1 seconds the concentration of dinitrogen pentoxide was 0.237 mol/L. What is the rate of decomposition over the specified time period in this rea..
Draw a Lewis structure for ammonia NH3-.Show all unshared pairs and formal charges, if any. Assume that bonding follows the octet rule.
what are some differences between the titration curves of strong acid and strong base versus weak acid and strong base?
The volume of HI(aq) required to reach the equivalence point : (1c) The pH at the half-neutralization point. (1d)The pH at the equivalence point.
How would one prepare 10ml of a 0.25M HCl solution if 1M HCl was available. How much 1M HCl is needed. How much distilled water is used
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?
A reaction vessel contains these compounds at equilibrium. What will happen if the volume of the container is reduced by 50% at constant temperature.
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