What must be the mass of the sample
particular sample of pure iron requires 0.595 kJ of energy to raise its temperature from 25oC to 45oC. The specific heat of iron is 0.45 J/g oC. What must be the mass of the sample?
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About power supply that cnanges AC to DC voltage and which a zener diode on it! jst need most the calculations of zener doide in this poer supply?
A sample of gas is collected over water at a temperature of 35.0?C when the barometric pressure reading is 625 torr. What is the partial pressure of the dry gas, given PH2O = 42.2 torr?
When separated from a water solution, CuSO4 forms a hydrate with 5 water molecules per formula unit. If 38 g of anhydrous CuSO4 are dissolved in water, what mass of the hydrate could be recovered from the solution?
An accelerometer has a seismic mass of 0.05kg and a spring constant of 3 x 10^3 N/m. Maximum mass displacement of 0.02m before the mass hits the stop. The maximum measurable acceleration will be equal to?
Bone was dissolved in hydrochloric acid, giving 45.0 mL of solution containing calcium chloride, CaCl2. To precipitate the calcium ion from the resulting solution, an excess of potassium oxalate was added. The preciCaC2O4, weighed 1.437 g. What was
A 25.0 mL sample of river water was titrated with 0.00100 M Na2Cr2O7 and required11.5 mL to reach the end point. What is the COD, in mg O2 per litre of the sample?
How would I convert Multisim a circuit that will convert that 0-10VDC signal into a 4-20mA signal for the long haul. And then convert that 4-20mA signal, back into a 0-5V DC signal?
Starting with 50.0 g of CaCO3(s) and 100 mL of 1 M HF, how many moles of CO2 can be produced?
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