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what mixing proportion is required for lime stone with 91% CaCO3, and clay with 31% CaCO3 to get a raw mix with a CaCO3 content of 76%?
In combustion analysis, 2.00mg of vitamin C yielded 3.00mg CO2 and 0.816mg H2o. From mass spectrometry, it was found that the molecular weight of vitamin C is 176amu. Determine the mass composition of vitamin C, its empirical formula, and its molecul..
What mass of solid sodium formate (of MW 68.01)must be added to 115 mL of 0.57 mol/L formic acid (HCOOH) to make a buffer solution having a pH of 4.16? Ka = 0.00018 for HCOOH.
Calculate the final temperature of the solution has a specific heat capacity =4.18 J/°C · g. assuming no heat lost
Find the lowest temperature of vaporization and the highest temperature when there is liquid left over and Determine the range of temperatures which could be used for this process.
Calculate the percent by weight, mole fraction and mole percent of each component in a mixture consisting 9g of water (H2O), 120g acetic acid(CH3COOH) and 115g of ethyl alcohol (C2H5OH).
Calculate the number of moles and molality of the solution prepared by dissolving 4.00g of NaOH in 250.0g of water.
100 mL of 0.200 M HCl is titrated with 0.250 M NaOH .What is the pH of the solution at the equivalence point?Express the pH numerically.
In 1986 an electrical power plant in Taylorsville, Georgia, burned 8,376,726 tons of coal, a national record at that time.
What is the molarity of a solution prepared by adding 29.3 g of HNO3 to enough water to make 2 L of solution
Explain the structural feature of Acetanilide molecule - Identify one structural feature of the acetanilide molecule
Would you help me to determine the term symbols allowed by the Pauli exclusion principle for the electron configuration 3d2 . Order the terms from lowest energy to highest.
the ratio of the no of molecules in the excited state at the temperature of 213 K to the number of ground state molecules and the percent of the excited molecules at 213 K.?
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