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1. Consider the solubility rules and identify all of the spectator ions when the following chemicals react: A) lead (II) nitrate and ammonium chloride B) Barium bromide and potassium carbonate. You must show all work (equations) clearly and in detail
2. The sour crystals on some gummi candies are actually organic acid crystals. What is the acid's empirical formula if it is made of 37.51% carbon, 4.20% hydrogen, and 58.29% oxygen? You must show all work clearly and in detail
A 26.0-g sample of ice at -10.0°C is mixed with 114.0 g of water at 72.0°C. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
A certain first-order reaction (A?products) has a rate constant of 8.10×10-3s-1 at 45°C. How many minutes does it take for the concentration of the reactant,[A], to drop to 6.25% of the original concentration
Monel metal is a corrosion-resistant copper-nickel alloy used in the electronics industry. A particular alloy with a density of 8.80 g/ cm^3. and containing 0.074 % Si by mass is used to make a rectangular plate that is 15.0 cm long,
Define pH. why do chemists normally choose to discuss the acidity of a solution in terms of pH rather than hydrogen ion concentration [H+]
At a given temperature, what relationship appears to exist between a gas particle's mass and its speed
What is a sign for the thermochemical process of melting NaCl. 2. 150 g sample of metal at 80oC added to 150 g of H2O at 20oC. The temperature rises to 23.3oC. what is aa specific heat of metal. Specific heat of water is 4.18 J/g.oC.
Calculate the expected pH of 0.05 M HAc, 0.05 M Ac-, and 0.05 M HAc/0.05 M Ac- after the addition of 1 mL 1.0 M NaOH to each.
A 25 mg brass sample was placed in a 25 mg flask meassured at 35% use your graph to determine mass percent
calculate the mass of agcl and h2s formed when 85.6 g of ag2s reacts with excess hcl.
Performed Lab with Na2CO3 in BaCl2 first. The reaction created a white precipitate, and presume the products are BaCO3 + 2NaCl. Not sure if NaCl is dissolved or not, or if it was the white precipitate, however anyways, here's my question.
A buffer is made up 0.24 M propanoic acid, CH3CH2COOH, a weak monoprotic acid, and 0.17 M of sodium propanoate, CH3CH2COONa. What is the pH of the solution.
Predict whether each of the following reactions will be spontaneous at all temperatures, nonspontaneous at all temperatures, spontaneous at low temperatures, or spontaneous at high temperatures
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