How many coins of each type does box have
The vending machine coin box has nuckles, dimes, and quarters. Coin box has 3 times as many nickles and 4 times as many quarters as it does dimes. If box has the total of $96.25, how many coins of each type does it have?
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The goldsmith has 120 grams of the gold alloy (the mixure of gold and one more other metals) having 75% pure gold. How much pure gold should be added to the alloy which is 80% pure gold?
Sodium carbonate is used to standardize acids in the same way it may be a reagent that you have used KHP in this experiment.
Determine the numbers of grams of the phosphorus-having compound are you putting on your lawn? If the phosphorus-containing compound consists of 43.64% phosphorus, determine the numbers of phosphorus are there in 40lb of fertilizer?
Determine the numbers of grams of KI are required to produce 1.0g of the yellow solid PbI2?
Coin box has 3 times as many nickles and 4 times as many quarters as it does dimes. If box has the total of $96.25, how many coins of each type does it have?
A 50.0 mL graduated cylinder has a mass of 50.7 g. When a graduated cylinder is filled with an unknown liquid to the 39.4 mL mark, the liquid and cylinder combined have a mass of 156.6 g.
Calculate the area in square meters of 363 g Al foil that has a thickness of 16641 nm which is having the density of Al is 2.70g/cm3.
Explain how much disodium citrate and sodium citrate must be used, in order to make a liter of a pH 4.5 citrate buffer with a total citrate concentration of 0.25 M.
The standard enthalpy change of the transition is 732 kJ/ mol. The myoglobin unfolds with the transition temperature of 45oC. Find out the entropy of unfolding of myoglobin at 298K.
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