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A sample of h20 with a mass of 46.0 grams has a temperature of -58.0 Celcius. how many joules of energy are necessary to heat the steam from 100.0 to 114.0 Celcius if the specific heat of steam is 2.01 J/g Celcius?
In a particular experiment, 2.25 g of NH3 and 3.75 g of O2 are placed in a container and allowed to react. How many grams of NO will have been formed when all of the limiting reactant has been consumed.
A cylinder is labeled "PENTANE." When the gas inside the cylinder is monochlorinated, five isomers of formula C5H11Cl result. Was the gas pure n-pentane, pure isopentane, pure neopentane
the mass of ahydrogen atom is 1, and the mass of an oxygen atom is 16 daltons,how many molecules does one mole of sugar(C12H22O11) contain?
the dehydration of beta-hydroxy ketone occur so readily to produce the alkene compared with all the unsuccessful effort to dehydrate an alcohol under basic conditions?
A volume of 110.mL of H2O is initially at room temperature (22.0 °C). A chilled steel rod at 2.00 °C is placed in the water. If the final temperature of the system is 21.1 °C , what is the mass of the steel bar?
A student wants to make a pH 4.0 buffer solution. She decides to use a buffer made from formic acid and sodium formate (NaCOOH).
NaOH solution is used to determine the amount of Mg(OH)2 in a sample of milk of magnesia, (molairty of NaOH is 1.172M). A 10.0 gram sample of milk of magnesia is required with 8.00 mL of 6.00 M HCl.
For the following aqueous reaction, write a complete and balanced net ionic equation for MnS + HBr. And name states.
When two atoms of 2H (deuterium) are fused to form one atom of 4He (helium), the total energy evolved is 3.83 × 10-12 joules. What is the total change in mass
The enthalpy change for the oxidation of styrene, C8H8, is measured by calorimetry. C8H8(l) + 10O2(g) ? 8CO2(g) + 4HOH(l) ?rH = -4395.0 kJ/mol How much heat in kJ is required to oxidize 25.0 g of styrene?
write a net ionic equation for the reaction of each antacid with aqueous HCl. include the state of each species. a)MgCO3 b)CaCO3 c)Mg(OH)2
Cesium atoms are the largest naturally occurring atoms. The radius of a Cs atom is 2.62angstroms. How many Cs atoms would have to be laid side by side to give a row of Cs atoms
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