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A 20.0-g piece of metal at 203°C is dropped into 100.0 g of water at 25.0°C. The water temperature rises to 29.0°C. Calculate the specific heat of the metal (J g°C). Assume that all of the heat lost by the metal is transferred to the water and no heat is lost to the surroundings.
Can you do a flow chart with info the provided on separation or and identification of cations groups 1, II and III and a quick write step by step?
Problem- A sample of I-131 has activity of 30 mCi. Its half-life is 8.08 days. Calculate activity at end of 20 days.
A 1.00 g sample of an unknown gas occupies 418 mL at 23.0 oC and 715 torr. Calculate the density at 23.0 oC and the molar mass of the gas.
for the titration of 50.0 ml of 0.020 m aqueous salicylic acid with 0.020 m kohaq calculate the ph after the addition
A volume of 32.2 mL of a 1.16 M KMnO4 solution is mixed with 17.7 mL of .692 M KMnO4 Solution. Caclulate the concentration of the final solution.
volume of a piece of galena is 4.7 cm3. determine the mass of that piece of galena if the density of galena is 7.5 gcm3
A 1.95 g sample of potassium bicarbonate is decomposed by heating. If the resulting potassium carbonate weighs 1.54 g and the calculated yield is 1.35 g, what is the percent yield
Calculate the pH of a solution that results from mixing 19.5 mL of 0.145 M HCN(aq) with 22.1 mL of 0.108 M NaCN. The Ka value for HCN is 4.9 x 10-10.
an analysis of drinking water found it to have 4.5 ppb parts per billion of arsenic. how many grams of arsenic are in a
when filled with water (d=1.00 g/cm 3) the flask and it contents weigh 518.3 g. what is the flask's volume?
What is the direction of the electron flow in the electrical circuit connecting the electrodes - What is the direction in which nitrate anions migrate?
Calculate the pH of a sodium cyanide solution that is 0.37M NaCN. The Ka for hydrocyanic acid HCN is 4.00E-10.
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