Calculate how many grams of 30% and how many grams of 10% coal tar paste must be combined to prepare 1/4 kilogram of a 15% paste.
Calculate how many grams of 30% and how many grams of 10% coal tar paste must...
You have made the following coal tar ointment Coal tar 4 g Castor oil 2 g Emulsifying ointment 94 g The current prescription requires an ointment with 2.0 % w/w coal tar. How many g of emulsifying ointment would need to be added to 230 g of the coal tar ointment above to make an ointment with 2.0 % w/w coal tar? (1 decimal places)
You have made the following coal tar ointment: Coal tar 4 g Castor oil 2 g Emulsifying ointment 94 g The current prescription requires an ointment with 1.6 % w/w coal tar. How many g of emulsifying ointment would need to be added to 130 g of the coal tar ointment above to make an ointment with 1.6 % w/w coal tar?
A recipe for an ointment known as "psoriasis ointment" reads as follows: Coal Tar Solution 100 parts Zinc Oxide Powder 200 parts Hydrophilic Ointment 1000 parts A prescription calls for the pharmacist to dispense 30 g of "psoriasis ointment". How many milliliters of Coal Tar Solution (S.G. 0.84) must the pharmacist measure in order to dispense 30 g of the ointment? The answer is 2.7, but how is this calculated?
1. How many grams of PbCl2 must be weighed to prepare 500 ml of a saturated solution at room temperature if its Kps is 10^-4.79. 2.The Kps of fluorite at 25ºC is 4 x 10^-11. What is its solubility in g / L of solution at that temperature? 3.Calculate the solubility of calcium oxalate in g / L 4. Bismuth Iodide has a solubility of 7.76 mg / L. What is its Kps?
CHjNH2 421 CH,NH, 2.4x10 10.62 6.7x106 5.17 How many grams of the bromide salt of the conjugate acid must be combined with how many grams of the weak base, to produce 1.00 L of a buffer that 1s 1.00 M in the weak base? Design a buffer that has a pH of 8.05 using one of the weak acid/conjugate base systems shown below. Weak Acid Conjugate Base K K 6.4 x 10 4.19 H2PO4 HPO4 6.2 x 108 7.21 нсоз....
2 KCIO, 2 KCI + 30, 10. How many grams of O, will be formed from 3.76 grams of KCIO. 3.76g KCIO. I mol KCIO, mol - 80 122.55 g KCIO,_mol KCIO, _mol O, 11. How many grams of KCIO, are needed to make 300 grams of KCI? 30.0 g KCI m ol KCI mol KCIO, _ KCIO, — g KCI - mol KCI Lmol KCIO, 12. How many grams of KCl will be formed from 2.73 g of KCIO,?...
How many grams of a 2% sulfur ointment must be mixed with 170 grams of 20% sulfur ointment to prepare an 8% sulfur ointment?
How many grams of a 5% sulfur ointment must be mixed with 180 grams of 20% sulfur ointment to prepare an 8% sulfur ointment?
Fissioning 30 pounds of U-235 releases 10¹⁵ joules of energy. How many tonnes of coal contain the same amount of energy?
how many grams of CO2 will be produced if 3490. grams
of iron is also produced?
Iron ore is converted to iron by heating it with coal (carbon) and oxygen according to the following unbalanced equation: 2_Fe2O3(s) + 4_C(s) + I_02(g) — 4 Fe(s) +4 CO2(g) First, balance the equation. (2 points) Then answer the following questions. a. How many grams of CO, will be produced if 3940. g of iron is also produced? (3 points) b. How many grams...