Based on the interest rates and cash flows shown in the cash flow diagram, determine the value of $X. 0 1 $50,000 2 4% 4% 4% 3 3% 4 $X 5 3% 3% 6 7 5% 5% 8 $25,000 5% 9

Hydrogen is manufactured on an industrial scale by this sequence of reactions: CH4 (g) + H₂O(g) = CO (g) + 3H₂(g) CO(g) + H₂O(g) = CO₂ (g) + H₂(g) The net reaction is: CH4 (g) + 2 H₂O(g) = CO₂(g) + 4H₂(g) Write an equation that gives the overall equilibrium constant K in terms of the equilibrium constants K₁ and K₂. If you need to include any physical constants, be sure you use their standard symbols, which you'll find in the ALEKS Calculator. K = 0 ロ・ロ X K₁ K₂ 4 K

Convert the following measurement. kg 4 5.4 x 10 g mol · L mol · dL

NHẠNO3 MgSO4 [1] Mass of salt (g) 1.968 1.981 [2] Volume of DI water (mL) 50.0 50.0 0.039 0.0396 Mass of DI water (g) [3] Temperature of DI water (°C) 22.5 22.5 [4] Temperature of mixture after dissolution (°C) 19.5 27.1 3 4.6 Temperature difference (°C) [5] Total mass in reaction (g) [6] Enthalpy of solution AHsolution (cal/mol)

A geochemist measures the concentration of salt dissolved in Lake Parsons and finds a concentration of 69.32 g.L The geochemist also measures the concentration of salt in several nearby non-isolated lakes, and finds an average concentration of 5.02 g⋅L¯¹. Assuming the salt concentration in Lake Parsons before it became isolated was equal to the average salt concentration in nearby non-isolated lakes, calculate the percentage of Lake Parsons which has evaporated since it became isolated. Be sure your answer has the correct number of significant digits.

Fill in the Blanks Chemical Price/kg (in dollars) NaOH 21.17 CaCl2 41.28 КОН 31.38 CUSO4 93.32 NH4NO3 59.64 NH4CI 25.04 NaCl 21.15 NaNO3 72.35 Type your answers in all of the blanks and submit Another requirement is that the cost of the salt needs to be evaluated to determine if it is economical to use. To do this, you should consider the price per degree of dropping the temperature of the solution. The table of prices per kg for each salt is shown above. Let's determine the cost for the NaOH solid as an example. We want to determine how much it costs to change the temperature by 1 deg C so we start with the cost given in the table and end with $/deg C. For NaOH: 21.17 $/ 1 kg) X ( 1 kg/ 1000 X ( Type your answer here g/ Type your answer here deg C) Please type your answer to submit Please type your answer to submit Type your answer here $/deg C

A geochemist measures the concentration of salt dissolved in Lake Parsons and finds a concentration of 11.10 g.L-¹. The geochemist also measures the concentration of salt in several nearby non-isolated lakes, and finds an average concentration of 4.30 g⋅L¯¹. Assuming the salt concentration in Lake Parsons before it became isolated was equal to the average salt concentration in nearby non-isolated lakes, calculate the percentage of Lake Parsons which has evaporated since it became isolated. Be sure your answer has the correct number of significant digits.

Convert the following measurement. kg 0.00134 = x10 mol · dL mol ·L ?

A mixture of barium chloride and sulfuric acid yield the precipitate barium sulfate and hydrochloric acid according to the double replacement reaction:   A large quantity of barium chloride is used to ensure that the sulfuric acid is the limiting reactant.  If 45.0 grams of barium sulfate are produced, what mass of H2SO4 must be dissolved in the initial aqueous solution? _ g     [Number in standard notation; round your answer to one decimal place]   The following molar masses may or may not be needed, but are provided to save you time: barium sulfate = 233 g/mol sulfuric acid = 98.0 g/mol

Determine the elemental percentages of all elements in C7H12CuO2. Enter your answer to two decimal places of precision, but do not include the percentage sign in your answer. C = H = Cu = O= % % % %