2. In a polyblend, of PVC with a Tg of 80 °C, and PTFE with a Tg of 115 °C, how much % PTFE is needed for a polyblend Tg = 92.7 °C ?

Suppose you have a soil that is made up of 10% organic matter with CEC = 200 cmol/kg, 40% kaolinitewith CEC = 10 cmol/kg, and 50% vermiculite with CEC = 100 cmol/kg.1- Calculate the overall CEC of the soil by taking a weighted average of the three soil components.2- What percentage of the overall CEC is contributed by the organic matter? How does that numbercompare to the 10% of the soil itself that is organic?

Why is GSC not used nearly as extensively as GLC?

In 10 g of a PVC sample (Mw = 100,000; Mn = 70,000), you add 20 g another PVC sample with Mw 60,000, PDI = 3. What will be the Mn of the new polymer mixture

A dry-wet-dry oxidation cycle of 20 min – 80 min – 20 min is performed at 1100 °C. (a) What is the final oxide thickness for a <100> silicon wafer? (b) What is the final oxide thickness for a <111> silicon wafer?

An acid solution containing 2 per cent by mass of NaNO3, and an unknown concentration of HNO3 is used to regenerate a strong acid resin. After sufficient acid had been passed over the resin for equilibrium to attained, analysis showed that 10 per cent of resin sites were occupied by sodium ions. What was the concentration of HNO3 in the solution, if its density were 1,030 kg/cu.m.?

A1.

If the cells were spread out into a thin layer that was a single cell thick, what would be the total surface area ( in square meters) for the top side of the cell layer ? Be sure your answer has the correct number of significant digits? ……m^2pls help me

An ore sample contains 11% impurity in additon to a mix of CuS and Cu2S. Heating 100g of the mix produces 75.4g of copper metal with a purity of 89.5%. What is weight 5 of CuS and Cu2S in the ore?

(16 points) For Completed Table and Low %error values M Cell Path Length, b (experimental: Beer's Law) Prepared Solution M Constant, (theoretical/ ε (dm³/mol calculated) cm) (cm) AII. Cu(CH3COO)2 2.06 M 5.97 1.0 2 x 10^-5 M BII. KMnO4 2.098 x 103 1.0 Difference in M CI. K2CrO4 0.442 M 277.2 1.0 Percent Error in M