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Problem- The concentrations of Al and K in a sample of river water are 0.50 mg/kg and 1.3 mg/kg, respectively. Express the concentration in molality?
Al is?m
Please give an idea about how you obtained the answer
The complete combustion of acetylene, C2H2(g), produces 1300. kJ of energy per mole of acetylene consumed. How many grams of acetylene must be burned
determine how many pounds a citizen would have to weigh in order to have ice melt beneath his/her ice skates. Do a bit of research and find out the area if cibtact betweeb a typical ice skating blade and the ice surface
Are the values of Km and Vmax obtained from LinearWear Burk Plot larger or smaller than those obtained from Michaelis Menten Plot. Explain why
50.00g of a metal phosphate with the formula X3PO4 were dissolved in water. Excess calcium nitrate solution was added and 15.69g of precipitate were collected. Explain what is the molar mass of X3PO4. Compute the atomic molar mass of X and a possi..
There are two possible ways to connect the atoms in hydrogen cyanide: HCN and HNC. Write the Lewis structures and use formal charges to predict which is the more likely structural arrangement.
The reaction 2NO2 -> 2NO + O2 has the rate constant k= 0.65 M-1s-1. If the initial of NO2 is 7.30 x 10-2 M, how would you determine how long it would take for the concentration to decrease to 1.70 x 10-2M
Write the balanced net ionic equation for the reaction between KMnO4 and Na2S2O3 in neutral
Question- Predict the product formed when the compound shown below undergoes a reaction with CH3ONa in CH3OH. Draw only the product with the longest chain of contiguous C atoms.
a 340 g aluminum cup holds and is in thermal equilibrium with 750 g of water at 83degc. the combination of cup and
calcium and the human body normally contains 6 quarts of blood, what mass of calcium (in grams) will be found in the total blood volume?
A this lead apron is used in dental offices to protect patients from harmful x rays if the she measures 75.0 cm by 55.0cm by 0.10 cm and the density of lead is 11.3 g/cm what is the mass of the apron in grams
A certain weak acid, HA, with a Ka value of 5.61*10 raised to negative 6 is titrated with NaOH. A solution is made by mixing 7.00 mmol of HA and 1.00 mmol of strong base. What is the ph
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