4. How many atoms are present in 0.180 grams of gallium. Answer #4 5. Write the...
Write formula for compounds
wite the correct formula for the following compounds: sodium bromide calcium chloride calcium sulfide copper(I) carbonate sulfuric acid diphosphorus pentoxide _ chloric acicd ammonium sulfate hydrochloric acid mercury(II) acetate lead (II) nitrite ammonium sulfite sodium sulfate nitrous acid nitric acid iron(III) sulfate barium fluoride copper(I) sulfite ammonium nitrate iron(III) hydroxide mercury(II) nitrate sulfurous acid hydrosulfuric acid iron(II) hydroxide lead(II) chloride calcium hydrogen carbonate sulfur trioxide phosphoric acid bromine pentafluoride dinitrogen tetroxide carbon monoxide aluminum carbonate ammonium...
1. How many moles of Cs are there in a sample that contains 3.17×1022cesium atoms? 2. How many cesium atoms are there in a sample that contains 3.69 mol of Cs? 3. How many moles of Kr are there in a sample that contains 3.23×1022krypton atoms? 4. How many krypton atoms are there in a sample that contains 1.14 mol of Kr? 5. What is the mass of 1.38×1024atoms of magnesium ? 6. How many magnesium atoms are there in...
1. What is the mass of 1.38×1024atoms of magnesium ? 2. How many magnesium atoms are there in 28.6 grams of magnesium ? 3. What is the mass of 1.69×1023atoms of lead ? 4. How many lead atoms are there in 28.8 grams of lead ? 5. How many moles of Ga are there in a sample that contains 10.9 grams of gallium? 6. How many grams of gallium are there in a sample that contains 2.19 mol of Ga?...
(3) 3. How many grams of oxygen are present in a sample containing 5.75 x 1021 formula units of manganese (II) phosphate ? (6) 4. Determine the percent composition (by mass) for each element in ammonium dichromate, (NH4)2Cr207.
(3) 3. How many grams of oxygen are present in a sample containing 5.75 x 1021 formula units of manganese (II) phosphate ? (6) 4. Determine the percent composition (by mass) for each element in ammonium dichromate, (NH4)2Cr2O7.
a. How many grams of sodium phosphate, Na3PO4, are present in 2.23 moles of this compound? grams b. How many moles of sodium phosphate are present in 3.73 grams of this compound? moles a. How many moles of sulfur hexafluoride, SF6, are present in 2.93 grams of this compound? moles b. How many grams of sulfur hexafluoride are present in 3.30 moles of this compound? grams
1. How many ATOMS of sulfur are present in 9.92 grams of sulfur tetrafluoride, SF4? ____ atoms of sulfur 2. How many GRAMS of fluorine are present in 4.58×1022 molecules of sulfur tetrafluoride? ____grams of fluorine 3. How many GRAMS of boron are present in 3.42 moles of boron trichloride, BCl3? ____grams 4. How many MOLES of chlorine are present in 3.38 grams of boron trichloride? ____moles 5. How many GRAMS of copper(II) are present in 4.84 grams of copper(II)...
How many grams of carbon atoms are present in a sample of C3H8 if there are 8.70 moles of hydrogen atoms in the sample? Enter your answer with the correct number of sig figs.
1. How many GRAMS of nickel(II) chromate are present in 2.09 moles of this compound ? grams. 2. How many MOLES of nickel(II) chromate are present in 3.84 grams of this compound ? moles. Submit Answer Retry Entire Group 8 more group attempts remaining
How many grams of Si are there in a sample of Si that contains 3.53x1023 atoms? | grams 1. How many ATOMS of nitrogen are present in 3.23 grams of nitrogen trifluoride ? atoms of nitrogen. 2. How many GRAMS of fluorine are present in 1.28x1022 molecules of nitrogen trifluoride ? grams of fluorine . The percent by mass of magnesium in Mg(OH)2 %.