Interpretation:
The molar volume is affected for the Zinc metal failed to drop into the aqueous solution has to be identified.
Concept Introduction:
STP in chemistry is the short form for Standard Temperature and Pressure. STP most usually is used when performing arts calculations on gases, such as gas density. The normal temperature is
Ideal gas is the most usually used form of the ideal gas equation, which describes the relationship among the four variables P, V, n, and T. An ideal gas is a hypothetical sample of gas whose pressure-volume-temperature behaviour is predicted accurately by the ideal gas equation.
- The sum pressure of an ideal gas mixture is the amount of the partial pressures of the gases in the mixture.
- The pressure exerted by an individual gas in a mixture is known as its partial pressure.
- Assuming we have a mixture of ideal gases, we can use the
ideal gas law to solve problems involving gases in a mixture. - Dalton's law of partial pressures states that the total pressure of a mixture of gases is equal to the sum of the partial pressures of the component gases:
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CHEMISTRY:ATOMS FIRST-2 YEAR CONNECT
- (1) To analyze the concentration of chloroform precursors, or natural organic matter, in a drinking water sample, which of the following instruments should be used? (A) TOC analyzer (B) GC (C) AA (D) IC (2) To analyze the concentration of cadmium (Cd) in a water sample, which of the following instruments should be used? (A) TOC analyzer (B) GC (C) AA (D) LC (3) To analyze the concentration of the chlorine residual in a water sample, which of the following instruments should be used? (A) TOC analyzer (B) GC (C) AA (C) AA (D) IC (4) To identify an unknown organic compound in drinking water, which of the following instruments should be used? (A) TOC analyzer (B) GC (D) IC (E) DPD Method (C) conductivity (E) GC/MS (5) To evaluate the quality of a drinking water sample, which of the following parameters may NOT be tested? (A) TSS (B) turbidity (D) TOC (E) coliformsarrow_forward(a) A student carries out a titration to find the concentration of some sulfuric acid. The student finds that 25.00 cm of 0.0880 mol dm aqueous sodium hydroxide, NaOH, is neutralised by 17.60 cm of dilute sulfuric acid, H2SO4. -3 H2SO4(aq) + 2NaOH(aq) → Na2SO,(aq) + 2H2O(1) (i) Calculate the amount, in moles, of NaOH used. answer = mol (ii) Determine the amount, in moles, of H2SO4 used. answer mol (ii) Calculate the concentration, in mol dm3, of the sulfuric acid. answer = mol dm3 (b) After carrying out the titration in (a), the student left the resulting solution to crystallise. White crystals were formed, with a formula of Na2SO4•x H2O and a molar mass of 322.1 g mol. What term is given to the x H2O' part of the formula? Using the molar mass of the crystals, calculate the value of x. answer =arrow_forwardBalanced chemical equation for conversion of Al(s) to KAl(SO4)2·12H2O(s) in aqueous solutionarrow_forward
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